Sök Bilder Maps Play YouTube Nyheter Gmail Drive Mer »
Logga in
Använder du ett skärmläsningsprogram? Öppna boken i tillgänglighetsläge genom att klicka här. Tillgänglighetsläget har samma grundläggande funktioner men fungerar bättre ihop med skärmläsningsprogrammet.

Patent

  1. Avancerad patentsökning
PublikationsnummerUS20030082307 A1
Typ av kungörelseAnsökan
AnsökningsnummerUS 10/193,333
Publiceringsdatum1 maj 2003
Registreringsdatum10 jul 2002
Prioritetsdatum26 okt 2001
Även publicerat somCN1774525A, CN1774525B, CN100524692C, CN101174577A, US6916398, US7780788, US8293328, US8318266, US8668776, US20030079686, US20030082301, US20030124262, US20050173068, US20070003698, US20070026147, US20070099415, US20080038463, US20100247767
Publikationsnummer10193333, 193333, US 2003/0082307 A1, US 2003/082307 A1, US 20030082307 A1, US 20030082307A1, US 2003082307 A1, US 2003082307A1, US-A1-20030082307, US-A1-2003082307, US2003/0082307A1, US2003/082307A1, US20030082307 A1, US20030082307A1, US2003082307 A1, US2003082307A1
UppfinnareHua Chung, Ling Chen
Ursprunglig innehavareApplied Materials, Inc.
Exportera citatBiBTeX, EndNote, RefMan
Externa länkar: USPTO, Överlåtelse av äganderätt till patent som har registrerats av USPTO, Espacenet
Integration of ALD tantalum nitride and alpha-phase tantalum for copper metallization application
US 20030082307 A1
Sammanfattning
A method for forming a metal interconnect on a substrate is provided. The method includes depositing a refractory metal-containing barrier layer having a thickness less than about 20 angstroms on at least a portion of a metal layer by alternately introducing one or more pulses of a metal-containing compound and one or more pulses of a nitrogen-containing compound. The method also includes depositing a seed layer on at least a portion of the barrier layer, and depositing a second metal layer on at least a portion of the seed layer. The barrier layer provides adequate barrier properties and allows the grain growth of the metal layer to continue across the barrier layer into the second metal layer thereby enhancing the electrical performance of the interconnect.
Bilder(5)
Previous page
Next page
Anspråk(33)
1. A method for forming a metal interconnect on a substrate, comprising:
depositing a refractory metal containing barrier layer having a thickness that exhibits a crystalline like structure and is sufficient to inhibit atomic migration on at least a portion of a metal layer by alternately introducing one or more pulses of a metal-containing compound and one or more pulses of a nitrogen-containing compound;
depositing a seed layer on at least a portion of the barrier layer; and
depositing a second metal layer on at least a portion of the seed layer.
2. The method of claim 1, wherein the refractory metal containing barrier comprises tantalum nitride.
3. The method of claim 1, wherein a grain growth of the metal layer continues across the barrier layer into the second metal layer.
4. The method of claim 1, wherein each pulse is repeated until the refractory metal containing barrier layer has a thickness less than about 20 angstroms.
5. The method of claim 1, wherein each pulse is repeated until the refractory metal containing barrier layer has a thickness of about 10 angstroms.
6. The method of claim 1, wherein the refractory metal containing barrier layer has a thickness of about 10 angstroms.
7. The method of claim 1, wherein the alternate pulsing is repeated between about 10 and about 70 times to form the refractory metal nitride layer.
8. The method of claim 1, further comprising flowing a purge gas continuously during each pulse of the metal-containing compound and each pulse of the nitrogen-containing compound.
9. The method of claim 8, wherein the purge gas comprises argon, nitrogen, helium, or combinations thereof.
10. The method of claim 8, wherein the purge gas has a flowrate of about 200 sccm to about 1,000 sccm.
11. The method of claim 1, wherein each pulse of the metal-containing compound has a flow rate of about 100 sccm to about 400 sccm.
12. The method of claim 1, wherein each pulse of the nitrogen-containing compound has a flow rate of about 200 sccm to about 600 sccm.
13. The method of claim 1, wherein each pulse of the metal-containing compound and the nitrogen-containing is separated by a time delay.
14. The method of claim 13, wherein each time delay is long enough for a volume of the metal-containing compound or a volume of the nitrogen-containing compound to adsorb onto the substrate surface.
15 The method of claim 14, wherein the time delay is long enough to remove non-adsorbed molecules from the substrate surface.
16. The method of claim 1, wherein the nitrogen-containing compound is selected from a group consisting of ammonia; hydrazine; methylhydrazine; dimethylhydrazine; t-butylhydrazine; phenylhydrazine; azoisobutane; ethylazide; derivatives thereof; and combinations thereof.
17. The method of claim 1, wherein the metal-containing compound is selected from a group consisting of: tetrakis (dimethylamino) titanium (TDMAT); tetrakis (ethylmethylamino) titanium (TEMAT); tetrakis (diethylamino) titanium (TDEAT); titanium tetrachloride (TiCl4); titanium iodide (Til4); titanium bromide (TiBr4); t-butylimino tris(diethylamino) tantalum (TBTDET); pentakis (ethylmethylamino); tantalum (PEMAT); pentakis (dimethylamino) tantalum (PDMAT); pentakis (diethylamino) tantalum (PDEAT); t-butylimino tris(diethyl methylamino) tantalum(TBTMET); t-butylimino tris(dimethyl amino) tantalum (TBTDMT); bis(cyclopentadienyl) tantalum trihydride ((Cp)2TaH3); bis(methylcyclopentadienyl) tantalum trihydride ((CpMe)2TaH3); derivatives thereof; and combinations thereof.
18. The method of claim 1, wherein the first and second metal layers each comprise tungsten, copper, or a combination thereof.
19. The method of claim 1, wherein the seed layer comprises copper and a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof.
20. The method of claim 1, wherein the seed layer is a dual alloy seed layer comprising copper and aluminum.
21. The method of claim 1, wherein the seed layer comprises a first seed layer deposited over the barrier layer and a second seed layer deposited over the first seed layer.
22. The method of claim 21, wherein the first seed layer comprises a copper alloy seed layer of the copper and a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof.
23. The method of claim 21, wherein the second seed layer comprises undoped copper.
24. The method of claim 21, wherein the first seed layer comprises a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof.
25. The method of claim 24, wherein the second seed layer comprises undoped copper.
26. A method for forming a metal interconnect on a substrate, comprising:
depositing a tantalum nitride barrier layer having a thickness less than about 20 angstroms on at least a portion of a metal layer by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound;
depositing a dual alloy seed layer; and
depositing a second metal layer on at least a portion of the dual alloy seed layer.
27. A method for forming a metal interconnect on a substrate, comprising:
depositing a first metal layer on a substrate surface;
depositing a titanium silicon nitride layer having a thickness less than about 20 angstroms over at least a portion of the first metal layer by alternately introducing one or more pulses of a titanium-containing compound, one or more pulses of a silicon-containing compound, and one or more pulses of a nitrogen-containing compound;
depositing a dual alloy seed layer; and
depositing a second metal layer on at least a portion of the dual alloy seed layer.
28. A method for forming a metal interconnect on a substrate, comprising:
depositing a tantalum silicon nitride layer having a thickness less than about 20 angstroms on at least a portion of a metal layer by alternately introducing one or more pulses of a tantalum-containing compound, one or more pulses of a silicon-containing compound, and one or more pulses of a nitrogen-containing compound;
depositing a dual alloy seed layer; and
depositing a second metal layer on at least a portion of the dual alloy seed layer.
29. A method for forming a metal interconnect on a substrate, comprising:
depositing a bilayer barrier having a thickness less than about 20 angstroms on at least a portion of a metal layer, the bilayer barrier comprising:
a first layer of tantalum nitride deposited by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound; and
a second layer of alpha phase tantalum;
depositing a dual alloy seed layer; and
depositing a second metal layer on at least a portion of the dual alloy seed layer.
30. A method for forming a metal interconnect on a substrate, comprising:
depositing a first metal layer on a substrate surface;
depositing a tantalum nitride barrier layer having a thickness less than about 20 angstroms on at least a portion of the first metal layer by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound;
depositing a dual alloy seed layer comprising copper and a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof; and
depositing a second metal layer on at least a portion of the dual alloy seed layer.
31. The method of claim 30, wherein the dual alloy seed layer comprises a first seed layer deposited over the barrier layer and a second seed layer deposited over the first seed layer.
32. The method of claim 31, wherein the first seed layer comprises a copper alloy seed layer of the copper and the metal.
33. The method of claim 31, wherein the second seed layer comprises undoped copper.
Beskrivning
    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application claims benefit of U.S. Provisional Patent Application Serial No. 60/346,086, filed on Oct. 26, 2001, and entitled “Method and Apparatus for ALD Deposition”, which is incorporated by reference herein. This application also claims benefit of U.S. patent application Ser. No. 09/965,370, filed on Sep. 26, 2001, and entitled “Integration of Barrier Layer and Seed Layer”, which is incorporated by reference herein. This application also claims benefit of U.S. patent application Ser. No. 09/965,373, filed on Sep. 26, 2001, and entitled “Integration of Barrier Layer and Seed Layer”, which is incorporated by reference herein. This application also claims benefit of U.S. patent application Ser. No. 09/965,369, filed on Sep. 26, 2001, and entitled “Integration of Barrier Layer and Seed Layer”, which is incorporated by reference herein.
  • BACKGROUND OF THE INVENTION
  • [0002]
    1. Field of the Invention
  • [0003]
    Embodiments of the present invention relate to a method for manufacturing integrated circuit devices. More particularly, embodiments of the invention relate to forming metal interconnect structures using one or more cyclical deposition processes.
  • [0004]
    2. Description of the Related Art
  • [0005]
    As the structure size of integrated circuit (IC) devices is scaled down to sub-quarter micron dimensions, electrical resistance and current densities have become an area for concern and improvement. Multilevel interconnect technology provides the conductive paths throughout an IC device, and are formed in high aspect ratio features, including contacts, plugs, vias, lines, wires, and other features. A typical process for forming an interconnect on a substrate includes depositing one or more layers, etching at least one of the layer(s) to form one or more features, depositing a barrier layer in the feature(s) and depositing one or more layers to fill the feature. Typically, a feature is formed within a dielectric material disposed between a lower conductive layer and an upper conductive layer. The interconnect is formed within the feature to link the upper and lower conductive layers. Reliable formation of these interconnect features is important to the production of the circuits and continued effort to increase circuit density and quality on individual substrates and die.
  • [0006]
    Copper has recently become a choice metal for filling sub-micron high aspect ratio, interconnect features because copper and its alloys have lower resistivities than aluminum. However, copper diffuses more readily into surrounding materials and can alter the electronic device characteristics of the adjacent layers and, for example, form a conductive path between layers, thereby reducing the reliability of the overall circuit and may even result in device failure.
  • [0007]
    Barrier layers therefore, are deposited prior to copper metallization to prevent or impede the diffusion of copper atoms. Barrier layers typically contain of a refractory metal such as tungsten, titanium, tantalum, and nitrides thereof, which all have a greater resistivity than copper. To deposit a barrier layer within a feature, the barrier layer must be deposited on the bottom of the feature as well as the sidewalls thereof. Therefore, the additional amount of the barrier layer on the bottom of the feature not only increases the overall resistance of the feature, but also forms an obstruction between higher and lower metal interconnects of a multi-layered interconnect structure.
  • [0008]
    There is a need, therefore, for an improved method for forming metal interconnect structures which minimizes the electrical resistance of the interconnect.
  • SUMMARY OF THE INVENTION
  • [0009]
    A method for forming a metal interconnect on a substrate is provided. In one aspect, the method includes a refractory metal containing a barrier layer having a thickness that exhibits a crystalline like structure and is sufficient to inhibit atomic migration over at least a portion of a metal layer by alternately introducing one or more pulses of a metal-containing compound and one or more pulses of a nitrogen-containing compound; depositing a seed layer on at least a portion of the barrier layer; and depositing a second metal layer on at least a portion of the seed layer.
  • [0010]
    In another aspect, the method includes depositing a tantalum nitride barrier layer having a thickness less than about 20 angstroms over at least a portion of a metal layer by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound; depositing an alloy seed layer on the barrier layer; and depositing a second metal layer. The alloy seed layer may contain a dual alloy such as copper and a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof. The second metal layer may be formed using physical vapor deposition (CVD), physical vapor deposition (PVD), electroplating, or electroless techniques.
  • [0011]
    In still another aspect, the method includes depositing a titanium silicon nitride layer having a thickness less than about 20 angstroms over at least a portion of a metal layer by alternately introducing one or more pulses of a titanium-containing compound, one or more pulses of a silicon-containing compound, and one or more pulses of a nitrogen-containing compound; depositing a dual alloy seed layer; and depositing a second metal layer on the seed layer.
  • [0012]
    In still another aspect, the method includes depositing a tantalum silicon nitride layer having a thickness less than about 20 angstroms over at least a portion of the first metal layer by alternately introducing one or more pulses of a tantalum-containing compound, one or more pulses of a silicon-containing compound, and one or more pulses of a nitrogen-containing compound; depositing a dual alloy seed layer; and depositing a second metal layer on the seed layer.
  • [0013]
    In yet another aspect, the method includes depositing a bilayer barrier having a thickness less than about 20 angstroms over at least a portion of the first metal layer. The bilayer barrier includes a first layer of tantalum nitride deposited by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound; and a second layer of alpha phase tantalum. The method further includes depositing a dual alloy seed layer and a second metal layer on the seed layer.
  • [0014]
    In another aspect, the method includes depositing a tantalum nitride barrier layer having a thickness less than about 20 angstroms over at least a portion of the first metal layer by alternately introducing one or more pulses of a tantalum-containing compound and one or more pulses of a nitrogen-containing compound; depositing a dual alloy seed layer comprising copper and a metal selected from the group consisting of aluminum, magnesium, titanium, zirconium, tin, and combinations thereof; and depositing a second metal layer on the seed layer by physical vapor deposition (CVD), physical vapor deposition (PVD), electroplating, or electroless techniques.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0015]
    So that the manner in which the above recited features of the present invention are attained and can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings.
  • [0016]
    It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
  • [0017]
    [0017]FIG. 1 illustrates processing sequences according to various embodiments of the invention described herein.
  • [0018]
    FIGS. 2A-2D are schematic cross section views of an exemplary wafer at different stages of an interconnect fabrication sequence according to embodiments described herein.
  • [0019]
    [0019]FIG. 3 illustrates a schematic, partial cross section of an exemplary processing chamber 200 for forming a thin barrier layer according to a cyclical deposition technique described herein.
  • [0020]
    [0020]FIG. 4 illustrates a schematic plan view of an exemplary integrated cluster tool adaptable to perform the interconnect fabrication sequence described herein.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • [0021]
    A process sequence for forming one or more interconnect structures is provided. Interconnect structures formed according to embodiments described herein have an overall lower resistivity and better electrical properties than interconnects of the prior art, and are particularly useful for making memory and logic structures for use with the fabrication of integrated circuits. The formation of the interconnect structures includes the formation of a thin barrier layer at least partially deposited on an underlying metal layer, a seed layer at least partially deposited on the barrier layer, and a bulk metal layer at least partially deposited on the seed layer. The term “interconnect” as used herein refers to any conductive path formed within an integrated circuit. The term “bulk” as used herein refers to a greater amount of material deposited in relation to other materials deposited to form the interconnect structure.
  • [0022]
    [0022]FIG. 1 illustrates the process sequence according to embodiments of the invention. A thin barrier layer is first deposited at least partially on an underlying substrate surface, such as a lower level metal interconnect or a metal gate, for example, as shown at step 480. The barrier layer is deposited according to a cyclical layer deposition technique described herein to provide excellent barrier properties and permit the continuous growth of the underlying metal layer across the barrier layer, into an upper level metal interconnect or subsequently deposited metal layer. In one aspect, the barrier layer is a refractory metal-containing layer, such as tantalum, titanium, and tungsten, for example, and may include a refractory metal nitride material, such as tantalum nitride (TaN). In another aspect, the barrier layer is a thin bi-layer of TaN and alpha-phase tantalum. In yet another aspect, the barrier layer may be a ternary material formed from a refractory metal containing compound, a silicon-containing compound and a nitrogen-containing compound. The barrier layer may also act as a wetting layer, adhesion layer, or glue layer for subsequent metallization.
  • [0023]
    A “thin layer” as used herein refers to a layer of material deposited on a substrate surface having a thickness of about 20 angstroms (Å) or less, such as about 10 Å. The thickness of the barrier layer is so small/thin that electrons of the adjacent metal interconnects can tunnel through the barrier layer. Accordingly, the barrier layer significantly enhances the metal interconnect electrical performance by lowering the overall electrical resistance and providing good device reliability.
  • [0024]
    The thin barrier layer deposited according to the cyclical deposition methods described herein shows evidence of an epitaxial growth phenomenon. In other words, the barrier layer takes on the same or substantially the same crystallographic characteristics as the underlying layer. As a result, a substantially single crystal is grown such that there is no void formation at an interface between the barrier layer and the underlying layer. Likewise, subsequent metal layers deposited over the barrier layer exhibit the same or substantially the same epitaxial growth characteristics that continue the formation of the single crystal. Accordingly, no void formation is produced at this interface. The resulting structure resembling a single crystal eliminates voids formation, thereby substantially increasing device reliability. The single crystal structure also reduces the overall resistance of the interconnect feature while still providing excellent barrier properties. Furthermore, it is believed that the single crystalline growth reduces the susceptibility of electromigration and stress migration due to the conformal and uniform crystalline orientation across the interconnect material interfaces.
  • [0025]
    “Cyclical deposition” as used herein refers to the sequential introduction of two or more compounds to deposit a thin layer on a substrate surface. The two or more compounds are sequentially introduced into a reaction zone of a processing chamber. Each compound is separated by a time delay/pause to allow each compound to adhere and/or react on the substrate surface. In one aspect, a first compound or compound A is dosed/pulsed into the reaction zone followed by a first time delay/pause. Next, a second compound or compound B is dosed/pulsed into the reaction zone followed by a second time delay. When a ternary material is desired, such as titanium silicon nitride, for example, a third compound (C), is dosed/pulsed into the reaction zone followed by a third time delay. These sequential tandems of a pulse of reactive compound followed by a time delay may be repeated indefinitely until a desired film or film thickness is formed on the substrate surface.
  • [0026]
    A “pulse/dose” as used herein is intended to refer to a quantity of a particular compound that is intermittently or non-continuously introduced into a reaction zone of a processing chamber. The quantity of a particular compound within each pulse may vary over time, depending on the duration of the pulse. A particular compound may include a single compound or a mixture/combination of two or more compounds.
  • [0027]
    A “compound” is intended to include one or more precursors, reductants, reactants, and catalysts. Each compound may be a single compound or a mixture/combination of two or more compounds.
  • [0028]
    Still referring to FIG. 1, a seed layer is at least partially deposited on the barrier layer, as shown at step 485. The seed layer may be deposited using any conventional deposition technique, such as chemical vapor deposition (CVD), physical vapor deposition (PVD), electroplating, or electroless plating. Preferably, the seed layer is deposited conformally on the underlying barrier layer to have a thickness between about 100 Å and about 500 Å. In one aspect, the seed layer is a conventional copper seed layer. In another aspect, the seed layer is a dual alloy seed layer. Exemplary dual alloy seed layers include: 1) undoped copper deposited utilizing a target containing undoped copper, 2) a copper alloy containing aluminum in a concentration of about 2.0 atomic percent deposited utilizing a copper-aluminum target comprising aluminum in a concentration of about 2.0 atomic percent, 3) a copper alloy containing tin in a concentration of about 2.0 atomic percent deposited utilizing a copper-tin target comprising tin in a concentration of about 2.0 atomic percent, and 4) a copper alloy containing zirconium in a concentration of about 2.0 atomic percent deposited utilizing a copper-zirconium target comprising zirconium in a concentration of about 2.0 atomic percent.
  • [0029]
    The bulk metal layer is at least partially deposited on the seed layer, as shown at step 487. The metal layer may also be deposited using any conventional deposition technique, such as chemical vapor deposition (CVD), physical vapor deposition (PVD), electroplating, or electroless plating. The metal layer preferably includes any conductive material such as aluminum, copper, tungsten, or combinations thereof, for example.
  • [0030]
    FIGS. 2A-2D are schematic representations of an exemplary interconnect structure at different stages of fabrication. FIG. 2A shows an underlying metal layer 110 having a dielectric layer 112 formed thereon. FIG. 2B shows a barrier layer 130 at least partially deposited on the underlying metal layer 110. The underlying metal layer 110 may contain any conductive metal such as aluminum, copper, tungsten, or combinations thereof, for example, and may form part of an interconnect feature such as a plug, via, contact, line, wire, and may also be part of a metal gate electrode. FIG. 2C shows a seed layer 140 at least partially deposited on the barrier layer 130, and FIG. 2D shows a bulk metal layer 142 at least partially deposited on the seed layer 140.
  • [0031]
    Referring to FIG. 2A, the dielectric layer 112 may be any dielectric material including a low k dielectric material (k≦4.0), whether presently known or yet to be discovered. For example, the dielectric layer 112 may be a silicon oxide or a carbon doped silicon oxide, for example. The dielectric layer 112 has been etched to form a feature 114 therein using conventional and well-known techniques. The feature 114 may be a plug, via, contact, line, wire, or any other interconnect component. Typically, the feature 114 has vertical sidewalls 116 and a floor 118, having an aspect ratio of about 4:1 or greater, such as about 6:1. The floor 118 exposes at least a portion of the lower level metal interconnect 110.
  • [0032]
    Referring to FIG. 2B, the barrier layer 130 is conformally deposited on the floor 118 as well as the side walls 116 of the feature 114. Preferably, the barrier layer contains tantalum nitride deposited to a thickness of about 20 Å or less, preferably about 10 Å, by providing one or more pulses of a tantalum-containing compound at a flow rate between about 100 sccm and about 1,000 sccm for a time period of about 1.0 second or less and one or more pulses of a nitrogen-containing compound at a flow rate between about 100 sccm and about 1,000 sccm for a time period of about 1.0 second or less to a reaction zone having a substrate disposed therein. Exemplary tantalum-containing compounds include: t-butylimino tris(diethylamino) tantalum (TBTDET); pentakis (ethylmethylamino); tantalum (PEMAT); pentakis (dimethylamino) tantalum (PDMAT); pentakis (diethylamino) tantalum (PDEAT); t-butylimino tris(diethyl methylamino) tantalum(TBTMET); t-butylimino tris(dimethyl amino) tantalum (TBTDMT); bis(cyclopentadienyl) tantalum trihydride ((Cp)2TaH3); bis(methylcyclopentadienyl) tantalum trihydride ((CpMe)2TaH3); derivatives thereof; and combinations thereof. Exemplary nitrogen-containing compounds include: ammonia; hydrazine; methylhydrazine; dimethylhydrazine; t-butylhydrazine; phenylhydrazine; azoisobutane; ethylazide; derivatives thereof; and combinations thereof.
  • [0033]
    It is to be understood that these compounds or any other compound not listed above may be a solid, liquid, or gas at room temperature. For example, PDMAT is a solid at room temperature and TBTDET is a liquid at room temperature. Accordingly, the non-gas phase precursors are subjected to a sublimation or vaporization step, which are both well known in the art, prior to introduction into the processing chamber. A carrier gas, such as argon, helium, nitrogen, hydrogen, or a mixture thereof, may also be used to help deliver the compound into the processing chamber, as is commonly known in the art.
  • [0034]
    Each pulse is performed sequentially, and is accompanied by a separate flow of non-reactive gas at a rate between about 200 sccm and about 1,000 sccm. The separate flow of non-reactive gas may be pulsed between each pulse of the reactive compounds or the separate flow of non-reactive gas may be introduced continuously throughout the deposition process. The separate flow of non-reactive gas, whether pulsed or continuous, serves to remove any excess reactants from the reaction zone to prevent unwanted gas phase reactions of the reactive compounds, and also serves to remove any reaction by-products from the processing chamber, similar to a purge gas. In addition to these services, the continuous separate flow of non-reactive gas helps deliver the pulses of reactive compounds to the substrate surface similar to a carrier gas. The term “non-reactive gas” as used herein refers to a single gas or a mixture of gases that does not participate in the metal layer formation. Exemplary non-reactive gases include argon, helium, nitrogen, hydrogen, and combinations thereof.
  • [0035]
    A “reaction zone” is intended to include any volume that is in fluid communication with a substrate surface being processed. The reaction zone may include any volume within a processing chamber that is between a gas source and the substrate surface. For example, the reaction zone includes any volume downstream of a dosing valve in which a substrate is disposed.
  • [0036]
    The durations for each pulse/dose are variable and may be adjusted to accommodate, for example, the volume capacity of the processing chamber as well as the capabilities of a vacuum system coupled thereto. Additionally, the dose time of a compound may vary according to the flow rate of the compound, the pressure of the compound, the temperature of the compound, the type of dosing valve, the type of control system employed, as well as the ability of the compound to adsorb onto the substrate surface. Dose times may also vary based upon the type of layer being formed and the geometry of the device being formed.
  • [0037]
    Typically, the duration for each pulse/dose or “dose time” is typically about 1.0 second or less. However, a dose time can range from microseconds to milliseconds to seconds, and even to minutes. In general, a dose time should be long enough to provide a volume of compound sufficient to adsorb/chemisorb onto the entire surface of the substrate and form a layer of the compound thereon.
  • [0038]
    [0038]FIG. 3 illustrates a schematic, partial cross section of an exemplary processing chamber 200 for forming a barrier layer according to embodiments of the present invention. Such a processing chamber 200 is available from Applied Materials, Inc. located in Santa Clara, Calif., and a brief description thereof follows. A more detailed description may be found in commonly assigned U.S. patent application Ser. No. 10/032,284, entitled “Gas Delivery Apparatus and Method For Atomic Layer Deposition”, filed on Dec. 21, 2001, which is incorporated herein by reference.
  • [0039]
    The processing chamber 200 may be integrated into an integrated processing platform, such as an Endura™ platform also available from Applied Materials, Inc. Details of the Endura™ platform are described in commonly assigned U.S. patent application Ser. No. 09/451,628, entitled “Integrated Modular Processing Platform”, filed on Nov. 30, 1999, which is incorporated by reference herein.
  • [0040]
    Referring to FIG. 3, the chamber 200 includes a chamber body 202 having a slit valve 208 formed in a sidewall 204 thereof and a substrate support 212 disposed therein. The substrate support 212 is mounted to a lift motor 214 to raise and lower the substrate support 212 and a substrate 210 disposed thereon. The substrate support 212 may also include a vacuum chuck, an electrostatic chuck, or a clamp ring for securing the substrate 212 to the substrate support 212 during processing. Further, the substrate support 212 may be heated using an embedded heating element, such as a resistive heater, or may be heated using radiant heat, such as heating lamps disposed above the substrate support 212. A purge ring 222 may be disposed on the substrate support 212 to define a purge channel 224 that provides a purge gas to prevent deposition on a peripheral portion of the substrate 210.
  • [0041]
    A gas delivery apparatus 230 is disposed at an upper portion of the chamber body 202 to provide a gas, such as a process gas and/or a purge gas, to the chamber 200. A vacuum system 278 is in communication with a pumping channel 279 to evacuate gases from the chamber 200 and to help maintain a desired pressure or a desired pressure range inside a pumping zone 266 of the chamber 200.
  • [0042]
    The gas delivery apparatus 230 includes a chamber lid 232 having an expanding channel 234 formed within a central portion thereof. The chamber lid 232 also includes a bottom surface 260 extending from the expanding channel 234 to a peripheral portion of the chamber lid 232. The bottom surface 260 is sized and shaped to substantially cover the substrate 210 disposed on the substrate support 212. The expanding channel 234 has an inner diameter that gradually increases from an upper portion 237 to a lower portion 235 adjacent the bottom surface 260 of the chamber lid 232. The velocity of a gas flowing therethrough decreases as the gas flows through the expanding channel 234 due to the expansion of the gas. The decreased gas velocity reduces the likelihood of blowing off reactants adsorbed on the surface of the substrate 210.
  • [0043]
    The gas delivery apparatus 230 also includes at least two high speed actuating valves 242 having one or more ports. At least one valve 242 is dedicated to each reactive compound. For example, a first valve is dedicated to a refractory metal-containing compound, such as tantalum and titanium, and a second valve is dedicated to a nitrogen-containing compound. When a ternary material is desired, a third valve is dedicated to an additional compound. For example, if a silicide is desired, the additional compound may be a silicon-containing compound.
  • [0044]
    The valves 242 may be any valve capable of precisely and repeatedly delivering short pulses of compounds into the chamber body 202. In some cases, the on/off cycles or pulses of the valves 242 may be as fast as about 100 msec or less. The valves 242 can be directly controlled by a system computer, such as a mainframe for example, or controlled by a chamber/application specific controller, such as a programmable logic computer (PLC) which is described in more detail in the co-pending U.S. patent application Ser. No. 09/800,881, entitled “Valve Control System For ALD Chamber”, filed on Mar. 7, 2001, which is incorporated by reference herein. For example, the valves 242 may be electronically controlled (EC) valves, which are commercially available from Fujikin of Japan as part number FR-21-6.35 UGF-APD.
  • [0045]
    To facilitate the control and automation of the overall system, the integrated processing system may include a controller 140 comprising a central processing unit (CPU) 142, memory 144, and support circuits 146. The CPU 142 may be one of any form of computer processors that are used in industrial settings for controlling various drives and pressures. The memory 144 is connected to the CPU 142, and may be one or more of a readily available memory such as random access memory (RAM), read only memory (ROM), floppy disk, hard disk, or any other form of digital storage, local or remote. Software instructions and data can be coded and stored within the memory 144 for instructing the CPU 142. The support circuits 146 are also connected to the CPU 142 for supporting the processor 142 in a conventional manner. The support circuits 146 may include cache, power supplies, clock circuits, input/output circuitry, subsystems, and the like.
  • [0046]
    In a particular embodiment, a TaN barrier layer is formed by cyclically introducing PDMAT and ammonia to the substrate surface. To initiate the cyclical deposition of the TaN layer, a carrier/inert gas such as argon is introduced into the processing chamber 200 to stabilize the pressure and temperature therein. The carrier gas is allowed to flow continuously during the deposition process such that only the argon flows between pulses of each compound. A first pulse of PDMAT is provided from the gas source 238 at a flow rate between about between about 100 sccm and about 400 sccm, with a pulse time of about 0.6 seconds or less after the chamber temperature and pressure have been stabilized at about 200° C. to about 300° C. and about 1 Torr to about 5 Torr. A pulse of ammonia is then provided from the gas source 239 at a flow rate between about 200 sccm and about 600 sccm, with a pulse time of about 0.6 seconds or less.
  • [0047]
    A pause between pulses of PDMAT and ammonia is about 1.0 second or less, preferably about 0.5 seconds or less, more preferably about 0.1 seconds or less. In various aspects, a reduction in time between pulses at least provides higher throughput. As a result, a pause after the pulse of ammonia is also about 1.0 second or less, about 0.5 seconds or less, or about 0.1 seconds or less. Argon gas flowing between about 100 sccm and about 1000 sccm, such as between about 100 sccm and about 400 sccm, is continuously provided from the gas source 240 through each valve 242. In one aspect, a pulse of PDMAT may still be in the chamber when a pulse of ammonia enters. In general, the duration of the carrier gas and/or pump evacuation should be long enough to prevent the pulses of PDMAT and ammonia from mixing together in the reaction zone.
  • [0048]
    The heater temperature is maintained between about 100° C. and about 300° C. at a chamber pressure between about 1.0 and about 5.0 Torr. Each cycle consisting of a pulse of PDMAT, pause, pulse of ammonia, and pause provides a tantalum nitride layer having a thickness between about 0.3 Å and about 1.0 Å per cycle. The alternating sequence may be repeated until the desired thickness is achieved, which is less than about 20 Å, such as about 10 Å. Accordingly, the deposition method requires between 10 and 70 cycles, more typically between 20 and 30 cycles.
  • [0049]
    In another aspect, a ternary barrier layer having a thickness less than about 20 Å, such as 10 Å, is deposited by providing one or more pulses of a refractory metal-containing compound, one or more pulses of a nitrogen-containing compound, and one or more pulses of a silicon-containing compound. Each pulse is adjusted to provide a desirable composition, silicon incorporation level, thickness, density, and step coverage of the refractory metal silicon nitride layer. A “ternary barrier layer” as used herein refers to a material having a composition comprising three major elements, such as titanium, nitrogen and silicon. An exemplary “ternary barrier layer” may also include tantalum, nitrogen and silicon.
  • [0050]
    Each pulse is performed sequentially, and is accompanied by a separate flow of carrier/inert gas at the same process conditions described above. The separate flow of carrier/inert gas may be pulsed between each pulse of reactive compound or the separate flow of carrier/inert gas may be introduced continuously throughout the deposition process.
  • [0051]
    Preferably, the ternary barrier layer contains titanium silicon nitride. In this embodiment, each cycle consists of a pulse of a titanium-containing compound, a pause, a pulse of a silicon-containing compound, a pause, a pulse of a nitrogen-containing compound, and a pause. Exemplary titanium-containing compound include tetrakis (dimethylamino) titanium (TDMAT), tetrakis (ethylmethylamino) titanium (TEMAT), tetrakis (diethylamino) titanium (TDEAT), titanium tetrachloride (TiCl4), titanium iodide (TiI4), titanium bromide (TiBr4), and other titanium halides. Exemplary silicon-containing compounds include silane, disilane, methylsilane, dimethylsilane, chlorosilane (SiH3Cl), dichlorosilane (SiH2Cl2), and trichlorosilane (SiHCl3). Exemplary nitrogen-containing compounds include: ammonia; hydrazine; methylhydrazine; dimethylhydrazine; t-butylhydrazine; phenylhydrazine; azoisobutane; ethylazide; derivatives thereof; and combinations thereof.
  • [0052]
    To initiate the cyclical deposition of a TixSiyN layer, argon is introduced into the processing chamber 200 to stabilize the pressure and temperature therein. This separate flow of argon flows continuously during the deposition process such that only the argon flows between pulses of each compound. The separate flow of argon flows between about 100 sccm and about 1000 sccm, such as between about 100 sccm and about 400 sccm. In one aspect, a pulse of TDMAT is provided at a flow rate between about between about 10 sccm and about 1000 sccm, with a pulse time of about 0.6 seconds or less after the chamber pressure and temperature have been stabilized at about 250° C. and 2 Torr. A pulse of silane is then provided at a flow rate between about 5 sccm and about 500 sccm, with a pulse time of 1 second or less. A pulse of ammonia is then provided at a flow rate between about 100 sccm and about 5,000 sccm, with a pulse time of about 0.6 seconds or less.
  • [0053]
    A pause between pulses of TDMAT and silane is about 1.0 second or less, preferably about 0.5 seconds or less, more preferably about 0.1 seconds or less. A pause between pulses of silane and ammonia is about 1.0 second or less, about 0.5 seconds or less, or about 0.1 seconds or less. A pause after the pulse of ammonia is also about 1.0 second or less, about 0.5 seconds or less, or about 0.1 seconds or less. In one aspect, a pulse of TDMAT may still be in the chamber when a pulse of silane enters, and a pulse of silane may still be in the chamber when a pulse of ammonia enters.
  • [0054]
    The heater temperature is maintained between about 100° C. and about 300° C. at a chamber pressure between about 1.0 and about 5.0 Torr. Each cycle consisting of a pulse of TDMAT, pause, pulse of silane, pause, pulse of ammonia, and pause provides a titanium silicon nitride layer having a thickness between about 0.3 Å and about 1.0 Å per cycle. The alternating sequence may be repeated until the desired thickness is achieved, which is less than about 20 Å, such as about 10 Å. Accordingly, the deposition method requires between 10 and 70 cycles.
  • [0055]
    In yet another aspect, an alpha phase tantalum (α-Ta) layer having a thickness of about 20 Å or less, such as about 10 Å, may be deposited over at least a portion of the previously deposited binary (TaN) or ternary (TiSiN) layers. The α-Ta layer may be deposited using conventional techniques, such as PVD and CVD for example, to form a bilayer stack. For example, the bilayer stack may include a TaN portion deposited by cyclical layer deposition described above and an α-Ta portion deposited by high density plasma physical vapor deposition (HDP-PVD).
  • [0056]
    To further illustrate, the α-Ta portion of the stack may be deposited using an ionized metal plasma (IMP) chamber, such as a Vectra™ chamber, available from Applied Materials, Inc. of Santa Clara, Calif. The IMP chamber includes a target, coil, and biased substrate support member, and may also be integrated into an Endura™ platform, also available from Applied Materials, Inc. A power between about 0.5 kW and about 5 kW is applied to the target, and a power between about 0.5 kW and 3 kW is applied to the coil. A power between about 200 W and about 500 W at a frequency of about 13.56 MHz is also applied to the substrate support member to bias the substrate. Argon is flowed into the chamber at a rate of about 35 sccm to about 85 sccm, and nitrogen may be added to the chamber at a rate of about 5 sccm to about 100 sccm. The pressure of the chamber is typically between about 5 mTorr to about 100 mTorr, while the temperature of the chamber is between about 20° C. and about 300° C.
  • [0057]
    Prior to depositing the barrier layer 130, the patterned or etched substrate dielectric layer 112 may be cleaned to remove native oxides or other contaminants from the surface thereof. For example, reactive gases are excited into a plasma within a remote plasma source chamber such as a Reactive Pre-clean chamber available from Applied Materials, Inc., located in Santa Clara, Calif. Pre-cleaning may also be done within a metal CVD or PVD chamber by connecting the remote plasma source thereto. Alternatively, metal deposition chambers having gas delivery systems could be modified to deliver the pre-cleaning gas plasma through existing gas inlets such as a gas distribution showerhead positioned above the substrate.
  • [0058]
    In one aspect, the reactive pre-clean process forms radicals from a plasma of one or more reactive gases such as argon, helium, hydrogen, nitrogen, fluorine-containing compounds, and combinations thereof. For example, a reactive gas may include a mixture of tetrafluorocarbon (CF4) and oxygen (O2), or a mixture of helium (He) and nitrogen trifluoride (NF3). More preferably, the reactive gas is a mixture of helium and nitrogen trifluoride.
  • [0059]
    Following the argon plasma, the chamber pressure is increased to about 140 mTorr, and a processing gas consisting essentially of hydrogen and helium is introduced into the processing region. Preferably, the processing gas comprises about 5% hydrogen and about 95% helium. The hydrogen plasma is generated by applying between about 50 watts and about 500 watts power. The hydrogen plasma is maintained for about 10 seconds to about 300 seconds.
  • [0060]
    Referring again to FIG. 2C, the seed layer 140 may be deposited using high density plasma physical vapor deposition (HDP-PVD) to enable good conformal coverage. One example of a HDP-PVD chamber is the Self-Ionized Plasma SIP™ chamber, available from Applied Materials, Inc. of Santa Clara, Calif., which may be integrated into an Endura™ platform, available from Applied Materials, Inc. Of course, other techniques, such as physical vapor deposition, chemical vapor deposition, electroless plating, and electroplating, may be used.
  • [0061]
    A typical SIP™ chamber includes a target, coil, and biased substrate support member. To form the copper seed layer, a power between about 0.5 kW and about 5 kW is applied to the target, and a power between about 0.5 kW and 3 kW is applied to the coil. A power between about 200 and about 500 W at a frequency of about 13.56 MHz is applied to bias the substrate. Argon is flowed into the chamber at a rate of about 35 sccm to about 85 sccm, and nitrogen may be added to the chamber at a rate of about 5 sccm to about 100 sccm. The pressure of the chamber is typically between about 5 mTorr to about 100 mTorr.
  • [0062]
    Alternatively, a seed layer 140 containing a copper alloy may be deposited by any suitable technique such as physical vapor deposition, chemical vapor deposition, electroless deposition, or a combination of techniques. Preferably, the copper alloy seed layer 140 contains aluminum and is deposited using a PVD technique described above. During deposition, the process chamber is maintained at a pressure between about 0.1 mtorr and about 10 mtorr. The target includes copper and between about 2 and about 10 atomic weight percent of aluminum. The target may be DC-biased at a power between about 5 kW and about 100 kW. The pedestal may be RF-biased at a power between about 10 W and about 1000 W. The copper alloy seed layer 140 is deposited to a thickness of at least about 5 Å, and between about 5 Å and about 500 Å.
  • [0063]
    Referring to FIG. 2D, the metal layer 142 is preferably copper and deposited using 140 using CVD, PVD, electroplating, or electroless techniques. Preferably, the copper layer 142 is formed within an electroplating cell, such as the Electra™ Cu ECP system, available from Applied Materials, Inc., of Santa Clara, Calif. The Electra™ Cu ECP system may also be integrated into an Endura™ platform also available from Applied Materials, Inc.
  • [0064]
    A copper electrolyte solution and copper electroplating technique is described in commonly assigned U.S. Pat. No. 6,113,771, entitled “Electro-deposition Chemistry”, which is incorporated by reference herein. Typically, the electroplating bath has a copper concentration greater than about 0.7M, a copper sulfate concentration of about 0.85, and a pH of about 1.75. The electroplating bath may also contain various additives as is well known in the art. The temperature of the bath is between about 15° C. and about 25° C. The bias is between about −15 volts to about 15 volts. In one aspect, the positive bias ranges from about 0.1 volts to about 10 volts and the negatives bias ranges from about −0.1 to about −10 volts.
  • [0065]
    Optionally, an anneal treatment may be performed following the metal layer 142 deposition whereby the wafer is subjected to a temperature between about 100° C. and about 400° C. for about 10 minutes to about 1 hour, preferably about 30 minutes. A carrier/purge gas such as helium, hydrogen, nitrogen, or a mixture thereof is introduced at a rate of about 100 sccm to about 10,000 sccm. The chamber pressure is maintained between about 2 Torr and about 10 Torr. The RF power is about 200 W to about 1,000 W at a frequency of about 13.56 MHz, and the preferable substrate spacing is between about 300 mils and about 800 mils.
  • [0066]
    Following deposition, the top portion of the resulting structure may be planarized. A chemical mechanical polishing (CMP) apparatus may be used, such as the Mirra™ System available from Applied Materials, Santa Clara, Calif., for example. Optionally, the intermediate surfaces of the structure may be planarized between the deposition of the subsequent layers described above.
  • [0067]
    [0067]FIG. 4 is a schematic top-view diagram of an exemplary multi-chamber processing system 600 that may be adapted to perform processes as disclosed herein. Such a processing system 600 may be an Endura™ system, commercially available from Applied Materials, Inc., of Santa Clara, Calif. A similar multi-chamber processing system is disclosed in U.S. Pat. No. 5,186,718, entitled “Stage Vacuum Wafer Processing System and Method,” issued on Feb. 16, 1993, which is incorporated by reference herein.
  • [0068]
    The system 600 generally includes load lock chambers 602, 604 for the transfer of substrates into and out from the system 600. Typically, since the system 600 is under vacuum, the load lock chambers 602, 604 may “pump down” the substrates introduced into the system 600. A first robot 610 may transfer the substrates between the load lock chambers 602, 604, and a first set of one or more substrate processing chambers 612, 614, 616, 618 (four are shown). Each processing chamber 612, 614, 616, 618, can be outfitted to perform a number of substrate processing operations such as cyclical layer deposition, chemical vapor deposition (CVD), physical vapor deposition (PVD), etch, pre-clean, degas, orientation and other substrate processes. The first robot 610 also transfers substrates to/from one or more transfer chambers 622, 624.
  • [0069]
    The transfer chambers 622, 624, are used to maintain ultrahigh vacuum conditions while allowing substrates to be transferred within the system 600. A second robot 630 may transfer the substrates between the transfer chambers 622, 624 and a second set of one or more processing chambers 632, 634, 636, 638. Similar to processing chambers 612, 614, 616, 618, the processing chambers 632, 634, 636, 638 can be outfitted to perform a variety of substrate processing operations, such as cyclical layer deposition, chemical vapor deposition (CVD), physical vapor deposition (PVD), etch, pre-clean, degas, and orientation, for example. Any of the substrate processing chambers 612, 614, 616, 618, 632, 634, 636, 638 may be removed from the system 600 if not necessary for a particular process to be performed by the system 600.
  • [0070]
    In one arrangement, each processing chamber 632 and 638 may be a physical vapor deposition chamber, a chemical vapor deposition chamber, or a cyclical deposition chamber adapted to deposit a seed layer; each processing chamber 634 and 636 may be a cyclical deposition chamber, a chemical vapor deposition chamber, or a physical vapor deposition chamber adapted to deposit a barrier layer; each processing chamber 612 and 614 may be a physical vapor deposition chamber, a chemical vapor deposition chamber, or a cyclical deposition chamber adapted to deposit a dielectric layer; and each processing chamber 616 and 618 may be an etch chamber outfitted to etch apertures or openings for interconnect features. This one particular arrangement of the system 600 is provided to illustrate the invention and should not be used to limit the scope of the invention.
  • [0071]
    The following example is intended to provide a non-limiting illustration of one embodiment of the present invention.
  • EXAMPLE
  • [0072]
    A TaN layer was deposited over a lower level copper layer using cyclical deposition to a thickness of about 20 Å. A copper alloy seed layer was deposited over the TaN layer by physical vapor deposition to a thickness of about 100 Å. The copper alloy seed layer contained aluminum in a concentration of about 2.0 atomic percent, and was deposited by PVD using a copper-aluminum target consisting of aluminum in a concentration of about 2.0 atomic percent. A bulk copper layer was then deposited using ECP to fill the feature. The substrate was then annealed at a temperature of about 380° C. for a time period of about 15 minutes in a nitrogen (N2) and hydrogen (H2) ambient.
  • [0073]
    The overall feature resistance was significantly reduced and the upper level copper layer surprisingly exhibited a grain growth similar to that of the lower level copper layer. The barrier performance of the TaN layer exhibited longer TTF compared with 50 Å PVD Ta. Further, the TaN layer showed low contact resistance and tight spread distribution. The TaN layer also exhibited excellent topography, having a smooth and pinhole free surface. Finally, the copper alloy seed layer showed excellent adhesion/wetting to the TaN layer.
  • [0074]
    While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Citat från patent
citerade patent Registreringsdatum Publiceringsdatum Sökande Titel
US28924 *26 jun 1860 Vapor-lamp
US31618 *5 mar 1861 Water-elevator
US41250 *12 jan 1864 Improvement in burning, roasting,, and smelting ores
US54769 *15 maj 1866 Iiviproveivient in churn-dashers
US76507 *7 apr 1868 Egbert o br
US76837 *14 apr 1868 John somerville and egbert elsdon
US4389973 *11 dec 198128 jun 1983Oy Lohja AbApparatus for performing growth of compound thin films
US5000113 *19 dec 198619 mar 1991Applied Materials, Inc.Thermal CVD/PECVD reactor and use for thermal chemical vapor deposition of silicon dioxide and in-situ multi-step planarized process
US5221449 *9 jul 199222 jun 1993International Business Machines CorporationMethod of making Alpha-Ta thin films
US5281485 *15 jan 199325 jan 1994International Business Machines CorporationStructure and method of making Alpha-Ta in thin films
US5306666 *21 jul 199326 apr 1994Nippon Steel CorporationProcess for forming a thin metal film by chemical vapor deposition
US5480818 *9 feb 19932 jan 1996Fujitsu LimitedMethod for forming a film and method for manufacturing a thin film transistor
US5483919 *17 aug 199416 jan 1996Nippon Telegraph And Telephone CorporationAtomic layer epitaxy method and apparatus
US5526244 *24 maj 199311 jun 1996Bishop; Vernon R.Overhead luminaire
US5711811 *28 nov 199527 jan 1998Mikrokemia OyMethod and equipment for growing thin films
US5855680 *28 nov 19955 jan 1999Neste OyApparatus for growing thin films
US5913147 *21 jan 199715 jun 1999Advanced Micro Devices, Inc.Method for fabricating copper-aluminum metallization
US5916365 *16 aug 199629 jun 1999Sherman; ArthurSequential chemical vapor deposition
US6015590 *28 nov 199518 jan 2000Neste OyMethod for growing thin films
US6015917 *23 jan 199818 jan 2000Advanced Technology Materials, Inc.Tantalum amide precursors for deposition of tantalum nitride on a substrate
US6043177 *21 jan 199728 mar 2000University Technology CorporationModification of zeolite or molecular sieve membranes using atomic layer controlled chemical vapor deposition
US6066358 *5 mar 199623 maj 2000Applied Materials, Inc.Blanket-selective chemical vapor deposition using an ultra-thin nucleation layer
US6174809 *15 dec 199816 jan 2001Samsung Electronics, Co., Ltd.Method for forming metal layer using atomic layer deposition
US6181012 *27 apr 199830 jan 2001International Business Machines CorporationCopper interconnection structure incorporating a metal seed layer
US6197683 *18 sep 19986 mar 2001Samsung Electronics Co., Ltd.Method of forming metal nitride film by chemical vapor deposition and method of forming metal contact of semiconductor device using the same
US6200893 *11 mar 199913 mar 2001Genus, IncRadical-assisted sequential CVD
US6203613 *19 okt 199920 mar 2001International Business Machines CorporationAtomic layer deposition with nitrate containing precursors
US6207302 *2 mar 199827 mar 2001Denso CorporationElectroluminescent device and method of producing the same
US6207487 *12 okt 199927 mar 2001Samsung Electronics Co., Ltd.Method for forming dielectric film of capacitor having different thicknesses partly
US6242808 *7 okt 19985 jun 2001Fujitsu LimitedSemiconductor device with copper wiring and semiconductor device manufacturing method
US6251759 *3 okt 199826 jun 2001Applied Materials, Inc.Method and apparatus for depositing material upon a semiconductor wafer using a transition chamber of a multiple chamber semiconductor wafer processing system
US6335240 *6 jan 19991 jan 2002Samsung Electronics Co., Ltd.Capacitor for a semiconductor device and method for forming the same
US6342277 *14 apr 199929 jan 2002Licensee For Microelectronics: Asm America, Inc.Sequential chemical vapor deposition
US6348376 *19 jan 200119 feb 2002Samsung Electronics Co., Ltd.Method of forming metal nitride film by chemical vapor deposition and method of forming metal contact and capacitor of semiconductor device using the same
US6358829 *16 sep 199919 mar 2002Samsung Electronics Company., Ltd.Semiconductor device fabrication method using an interface control layer to improve a metal interconnection layer
US6372598 *16 jun 199916 apr 2002Samsung Electronics Co., Ltd.Method of forming selective metal layer and method of forming capacitor and filling contact hole using the same
US6379748 *17 jan 200030 apr 2002Advanced Technology Materials, Inc.Tantalum amide precursors for deposition of tantalum nitride on a substrate
US6391785 *23 aug 200021 maj 2002Interuniversitair Microelektronica Centrum (Imec)Method for bottomless deposition of barrier layers in integrated circuit metallization schemes
US6511539 *8 sep 199928 jan 2003Asm America, Inc.Apparatus and method for growth of a thin film
US6534395 *6 mar 200118 mar 2003Asm Microchemistry OyMethod of forming graded thin films using alternating pulses of vapor phase reactants
US6548424 *16 apr 200115 apr 2003Asm Microchemistry OyProcess for producing oxide thin films
US6551929 *28 jun 200022 apr 2003Applied Materials, Inc.Bifurcated deposition process for depositing refractory metal layers employing atomic layer deposition and chemical vapor deposition techniques
US6569501 *3 maj 200227 maj 2003Angstron Systems, Inc.Sequential method for depositing a film by modulated ion-induced atomic layer deposition (MII-ALD)
US6686271 *6 sep 20023 feb 2004Asm International N.V.Protective layers prior to alternating layer deposition
US6693030 *14 jul 200017 feb 2004Applied Materials, Inc.Reactive preclean prior to metallization for sub-quarter micron application
US20010000866 *29 nov 200010 maj 2001Ofer SnehApparatus and concept for minimizing parasitic chemical vapor deposition during atomic layer deposition
US20010002280 *22 dec 200031 maj 2001Ofer SnehRadical-assisted sequential CVD
US20020000598 *23 jul 20013 jan 2002Sang-Bom KangSemiconductor devices having metal layers as barrier layers on upper or lower electrodes of capacitors
US20020007790 *3 maj 200124 jan 2002Park Young-HoonAtomic layer deposition (ALD) thin film deposition equipment having cleaning apparatus and cleaning method
US20020020869 *20 dec 200021 feb 2002Ki-Seon ParkSemiconductor device incorporated therein high K capacitor dielectric and method for the manufacture thereof
US20020021544 *7 mar 200121 feb 2002Hag-Ju ChoIntegrated circuit devices having dielectric regions protected with multi-layer insulation structures and methods of fabricating same
US20020041931 *14 maj 200111 apr 2002Tuomo SuntolaMethod for growing thin films
US20020048635 *8 okt 199925 apr 2002Kim Yeong-KwanMethod for manufacturing thin film
US20020051152 *30 mar 20012 maj 2002Tsutomu KuroseMethod of and apparatus for distinguishing type of pixel
US20020052097 *3 maj 20012 maj 2002Park Young-HoonApparatus and method for depositing thin film on wafer using atomic layer deposition
US20020068458 *26 nov 20016 jun 2002Chiang Tony P.Method for integrated in-situ cleaning and susequent atomic layer deposition within a single processing chamber
US20020073924 *24 okt 200120 jun 2002Chiang Tony P.Gas introduction system for a reactor
US20020074588 *6 jul 200120 jun 2002Kyu-Mann LeeFerroelectric capacitors for integrated circuit memory devices and methods of manufacturing same
US20020076481 *24 okt 200120 jun 2002Chiang Tony P.Chamber pressure state-based control for a reactor
US20030013300 *15 jul 200216 jan 2003Applied Materials, Inc.Method and apparatus for depositing tungsten after surface treatment to improve film characteristics
US20030013320 *31 maj 200116 jan 2003Samsung Electronics Co., Ltd.Method of forming a thin film using atomic layer deposition
US20030015764 *21 jun 200123 jan 2003Ivo RaaijmakersTrench isolation for integrated circuit
US20030024600 *20 mar 20026 feb 2003Wen-Chi ChangHollow chisel mortiser with a rotor for adjusting a working angle of the mortiser
US20030031807 *17 sep 200213 feb 2003Kai-Erik ElersDeposition of transition metal carbides
US20030032281 *23 sep 200213 feb 2003Werkhoven Christiaan J.Graded thin films
US20030042630 *5 sep 20016 mar 2003Babcoke Jason E.Bubbler for gas delivery
US20030049931 *19 sep 200113 mar 2003Applied Materials, Inc.Formation of refractory metal nitrides using chemisorption techniques
US20030049942 *22 aug 200213 mar 2003Suvi HaukkaLow temperature gate stack
US20030053799 *14 sep 200120 mar 2003Lei Lawrence C.Apparatus and method for vaporizing solid precursor for CVD or atomic layer deposition
US20030054631 *6 sep 200220 mar 2003Ivo RaaijmakersProtective layers prior to alternating layer deposition
US20030057526 *26 sep 200127 mar 2003Applied Materials, Inc.Integration of barrier layer and seed layer
US20030057527 *26 sep 200127 mar 2003Applied Materials, Inc.Integration of barrier layer and seed layer
US20030059538 *26 sep 200127 mar 2003Applied Materials, Inc.Integration of barrier layer and seed layer
US20030072884 *15 okt 200117 apr 2003Applied Materials, Inc.Method of titanium and titanium nitride layer deposition
US20030072975 *26 sep 200217 apr 2003Shero Eric J.Incorporation of nitrogen into high k dielectric film
US20030079686 *21 dec 20011 maj 2003Ling ChenGas delivery apparatus and method for atomic layer deposition
US20030082296 *12 sep 20021 maj 2003Kai ElersMetal nitride deposition by ALD with reduction pulse
US20030082300 *11 feb 20021 maj 2003Todd Michael A.Improved Process for Deposition of Semiconductor Films
US20030082301 *18 jul 20021 maj 2003Applied Materials, Inc.Enhanced copper growth with ultrathin barrier layer for high performance interconnects
US20030089308 *10 dec 200215 maj 2003Ivo RaaijmakersApparatus and method for growth of a thin film
US20030089942 *9 nov 200115 maj 2003Micron Technology, Inc.Scalable gate and storage dielectric
US20030096468 *19 nov 200222 maj 2003Soininen Pekka J.Method of growing electrical conductors
US20030097013 *12 apr 200222 maj 2003Applied Materials, Inc.Nitrogen analogs of copper II beta-diketonates as source reagents for semiconductor processing
US20040009307 *8 jun 200115 jan 2004Won-Yong KohThin film forming method
US20040011504 *17 jul 200222 jan 2004Ku Vincent W.Method and apparatus for gas temperature control in a semiconductor processing system
US20040013803 *16 dec 200222 jan 2004Applied Materials, Inc.Formation of titanium nitride films using a cyclical deposition process
US20040014320 *27 maj 200322 jan 2004Applied Materials, Inc.Method and apparatus of generating PDMAT precursor
US20040015300 *22 jul 200222 jan 2004Seshadri GanguliMethod and apparatus for monitoring solid precursor delivery
US20040016866 *12 mar 200329 jan 2004Veutron CorporationLight source control method and apparatus of image scanner
US20040018304 *10 jul 200229 jan 2004Applied Materials, Inc.Method of film deposition using activated precursor gases
US20040018723 *13 mar 200329 jan 2004Applied Materials, Inc.Formation of boride barrier layers using chemisorption techniques
US20040018747 *14 jul 200329 jan 2004Lee Jung-HyunDeposition method of a dielectric layer
US20040028952 *10 jun 200312 feb 2004Interuniversitair Microelektronica Centrum (Imec Vzw)High dielectric constant composition and method of making same
US20040033698 *4 aug 200319 feb 2004Lee Yun-JungMethod of forming oxide layer using atomic layer deposition method and method of forming capacitor of semiconductor device using the same
US20040043630 *28 aug 20024 mar 2004Micron Technology, Inc.Systems and methods for forming metal oxides using metal organo-amines and metal organo-oxides
US20040046197 *11 sep 200311 mar 2004Cem BasceriMIS capacitor and method of formation
US20040048491 *28 aug 200311 mar 2004Hyung-Suk JungPost thermal treatment methods of forming high dielectric layers in integrated circuit devices
US20040053484 *16 sep 200218 mar 2004Applied Materials, Inc.Method of fabricating a gate structure of a field effect transistor using a hard mask
Hänvisningar finns i följande patent
citeras i Registreringsdatum Publiceringsdatum Sökande Titel
US683100413 mar 200314 dec 2004Applied Materials, Inc.Formation of boride barrier layers using chemisorption techniques
US6905541 *27 maj 200314 jun 2005Applied Materials, Inc.Method and apparatus of generating PDMAT precursor
US718638517 jul 20026 mar 2007Applied Materials, Inc.Apparatus for providing gas to a processing chamber
US72650481 mar 20054 sep 2007Applied Materials, Inc.Reduction of copper dewetting by transition metal deposition
US7303991 *7 jun 20044 dec 2007Micron Technology, Inc.Atomic layer deposition methods
US736838228 apr 20066 maj 2008Micron Technology, Inc.Atomic layer deposition methods
US737835428 apr 200627 maj 2008Micron Technology, Inc.Atomic layer deposition methods
US7402210 *1 mar 200722 jul 2008Applied Materials, Inc.Apparatus and method for hybrid chemical processing
US7429402 *10 dec 200430 sep 2008Applied Materials, Inc.Ruthenium as an underlayer for tungsten film deposition
US752437427 maj 200428 apr 2009Applied Materials, Inc.Method and apparatus for generating a precursor for a semiconductor processing system
US7591907 *11 jul 200822 sep 2009Applied Materials, Inc.Apparatus for hybrid chemical processing
US765193420 mar 200626 jan 2010Applied Materials, Inc.Process for electroless copper deposition
US767094529 dec 20082 mar 2010Applied Materials, Inc.In situ deposition of a low κ dielectric layer, barrier layer, etch stop, and anti-reflective coating for damascene application
US767471516 dec 20089 mar 2010Applied Materials, Inc.Method for forming tungsten materials during vapor deposition processes
US767819428 nov 200616 mar 2010Applied Materials, Inc.Method for providing gas to a processing chamber
US767829825 sep 200716 mar 2010Applied Materials, Inc.Tantalum carbide nitride materials by vapor deposition processes
US76829466 nov 200623 mar 2010Applied Materials, Inc.Apparatus and process for plasma-enhanced atomic layer deposition
US76917424 feb 20096 apr 2010Applied Materials, Inc.Atomic layer deposition of tantalum-containing materials using the tantalum precursor TAIMATA
US7699023 *26 okt 200720 apr 2010Applied Materials, Inc.Gas delivery apparatus for atomic layer deposition
US770938516 dec 20084 maj 2010Applied Materials, Inc.Method for depositing tungsten-containing layers by vapor deposition techniques
US77323255 jan 20098 jun 2010Applied Materials, Inc.Plasma-enhanced cyclic layer deposition process for barrier layers
US774532920 aug 200829 jun 2010Applied Materials, Inc.Tungsten nitride atomic layer deposition processes
US774533324 jul 200829 jun 2010Applied Materials, Inc.Methods for depositing tungsten layers employing atomic layer deposition techniques
US777550831 okt 200617 aug 2010Applied Materials, Inc.Ampoule for liquid draw and vapor draw with a continuous level sensor
US778078525 okt 200224 aug 2010Applied Materials, Inc.Gas delivery apparatus for atomic layer deposition
US778078811 mar 200524 aug 2010Applied Materials, Inc.Gas delivery apparatus for atomic layer deposition
US779454426 okt 200714 sep 2010Applied Materials, Inc.Control of gas flow and delivery to suppress the formation of particles in an MOCVD/ALD system
US77980965 maj 200621 sep 2010Applied Materials, Inc.Plasma, UV and ion/neutral assisted ALD or CVD in a batch tool
US782474328 sep 20072 nov 2010Applied Materials, Inc.Deposition processes for titanium nitride barrier and aluminum
US783844120 apr 200923 nov 2010Applied Materials, Inc.Deposition and densification process for titanium nitride barrier layers
US784684022 dec 20097 dec 2010Applied Materials, Inc.Method for forming tungsten materials during vapor deposition processes
US78507796 nov 200614 dec 2010Applied Materisals, Inc.Apparatus and process for plasma-enhanced atomic layer deposition
US78678962 apr 200911 jan 2011Applied Materials, Inc.Sequential deposition of tantalum nitride using a tantalum-containing precursor and a nitrogen-containing precursor
US786791429 jun 200711 jan 2011Applied Materials, Inc.System and method for forming an integrated barrier layer
US78926027 jun 200622 feb 2011Applied Materials, Inc.Cyclical deposition of refractory metal silicon nitride
US806242213 feb 200922 nov 2011Applied Materials, Inc.Method and apparatus for generating a precursor for a semiconductor processing system
US8070879 *20 aug 20096 dec 2011Applied Materials, Inc.Apparatus and method for hybrid chemical processing
US8107274 *30 jul 200931 jan 2012Chrong-Jung LinVariable and reversible resistive element, non-volatile memory device and methods for operating and manufacturing the non-volatile memory device
US811048911 apr 20077 feb 2012Applied Materials, Inc.Process for forming cobalt-containing materials
US814689631 okt 20083 apr 2012Applied Materials, Inc.Chemical precursor ampoule for vapor deposition processes
US818797015 dec 201029 maj 2012Applied Materials, Inc.Process for forming cobalt and cobalt silicide materials in tungsten contact applications
US828299226 okt 20079 okt 2012Applied Materials, Inc.Methods for atomic layer deposition of hafnium-containing high-K dielectric materials
US82933287 sep 200623 okt 2012Applied Materials, Inc.Enhanced copper growth with ultrathin barrier layer for high performance interconnects
US83182667 sep 200627 nov 2012Applied Materials, Inc.Enhanced copper growth with ultrathin barrier layer for high performance interconnects
US832375421 maj 20044 dec 2012Applied Materials, Inc.Stabilization of high-k dielectric materials
US834327912 maj 20051 jan 2013Applied Materials, Inc.Apparatuses for atomic layer deposition
US8486845 *21 mar 200516 jul 2013Tokyo Electron LimitedPlasma enhanced atomic layer deposition system and method
US8491967 *8 sep 200823 jul 2013Applied Materials, Inc.In-situ chamber treatment and deposition process
US856342426 apr 201222 okt 2013Applied Materials, Inc.Process for forming cobalt and cobalt silicide materials in tungsten contact applications
US866877610 jun 201011 mar 2014Applied Materials, Inc.Gas delivery apparatus and method for atomic layer deposition
US8778079 *9 okt 200815 jul 2014Valence Process Equipment, Inc.Chemical vapor deposition reactor
US87961423 mar 20065 aug 2014Ulvac, Inc.Method for forming tantalum nitride film
US8835308 *30 nov 201116 sep 2014Applied Materials, Inc.Methods for depositing materials in high aspect ratio features
US8911826 *2 aug 201216 dec 2014Asm Ip Holding B.V.Method of parallel shift operation of multiple reactors
US903290616 okt 200719 maj 2015Applied Materials, Inc.Apparatus and process for plasma-enhanced atomic layer deposition
US905164129 aug 20089 jun 2015Applied Materials, Inc.Cobalt deposition on barrier surfaces
US920907420 maj 20158 dec 2015Applied Materials, Inc.Cobalt deposition on barrier surfaces
US9359672 *21 jun 20127 jun 2016Asm America, Inc.Reaction system for growing a thin film
US941889015 maj 201416 aug 2016Applied Materials, Inc.Method for tuning a deposition rate during an atomic layer deposition process
US944749818 mar 201420 sep 2016Asm Ip Holding B.V.Method for performing uniform processing in gas system-sharing multiple reaction chambers
US945513810 nov 201527 sep 2016Asm Ip Holding B.V.Method for forming dielectric film in trenches by PEALD using H-containing gas
US947841513 feb 201525 okt 2016Asm Ip Holding B.V.Method for forming film having low resistance and shallow junction depth
US95431801 aug 201410 jan 2017Asm Ip Holding B.V.Apparatus and method for transporting wafers between wafer carrier and process tool under vacuum
US95565169 okt 201331 jan 2017ASM IP Holding B.VMethod for forming Ti-containing film by PEALD using TDMAT or TDEAT
US960783721 dec 201528 mar 2017Asm Ip Holding B.V.Method for forming silicon oxide cap layer for solid state diffusion process
US962722128 dec 201518 apr 2017Asm Ip Holding B.V.Continuous process incorporating atomic layer etching
US964041626 dec 20122 maj 2017Asm Ip Holding B.V.Single-and dual-chamber module-attachable wafer-handling chamber
US964711414 aug 20159 maj 2017Asm Ip Holding B.V.Methods of forming highly p-type doped germanium tin films and structures and devices including the films
US971134525 aug 201518 jul 2017Asm Ip Holding B.V.Method for forming aluminum nitride-based film by PEALD
US973502428 dec 201515 aug 2017Asm Ip Holding B.V.Method of atomic layer etching using functional group-containing fluorocarbon
US975477919 feb 20165 sep 2017Asm Ip Holding B.V.Method for forming silicon nitride film selectively on sidewalls or flat surfaces of trenches
US97931156 jul 201617 okt 2017Asm Ip Holding B.V.Structures and devices including germanium-tin films and methods of forming same
US979313514 jul 201617 okt 2017ASM IP Holding B.VMethod of cyclic dry etching using etchant film
US979314822 jun 201117 okt 2017Asm Japan K.K.Method for positioning wafers in multiple wafer transport
US981232028 jul 20167 nov 2017Asm Ip Holding B.V.Method and apparatus for filling a gap
US20020036780 *27 sep 200128 mar 2002Hiroaki NakamuraImage processing apparatus
US20030082301 *18 jul 20021 maj 2003Applied Materials, Inc.Enhanced copper growth with ultrathin barrier layer for high performance interconnects
US20030108674 *18 jul 200212 jun 2003Applied Materials, Inc.Cyclical deposition of refractory metal silicon nitride
US20030224600 *4 mar 20034 dec 2003Wei CaoSequential deposition of tantalum nitride using a tantalum-containing precursor and a nitrogen-containing precursor
US20040013577 *17 jul 200222 jan 2004Seshadri GanguliMethod and apparatus for providing gas to a processing chamber
US20040014320 *27 maj 200322 jan 2004Applied Materials, Inc.Method and apparatus of generating PDMAT precursor
US20040018304 *10 jul 200229 jan 2004Applied Materials, Inc.Method of film deposition using activated precursor gases
US20040144311 *13 nov 200329 jul 2004Ling ChenApparatus and method for hybrid chemical processing
US20040175926 *7 mar 20039 sep 2004Advanced Micro Devices, Inc.Method for manufacturing a semiconductor component having a barrier-lined opening
US20040197492 *22 jul 20037 okt 2004Applied Materials, Inc.CVD TiSiN barrier for copper integration
US20040224527 *7 jun 200411 nov 2004Micron Technology, Inc.Atomic layer deposition methods
US20040256351 *19 dec 200323 dec 2004Hua ChungIntegration of ALD/CVD barriers with porous low k materials
US20050009325 *18 jun 200413 jan 2005Hua ChungAtomic layer deposition of barrier materials
US20050037613 *14 aug 200317 feb 2005Stephan GrunowDiffusion barrier for copper lines in integrated circuits
US20050189072 *2 maj 20051 sep 2005Applied Materials, Inc.Method and apparatus of generating PDMAT precursor
US20060019495 *19 feb 200526 jan 2006Applied Materials, Inc.Atomic layer deposition of tantalum-containing materials using the tantalum precursor taimata
US20060128150 *10 dec 200415 jun 2006Applied Materials, Inc.Ruthenium as an underlayer for tungsten film deposition
US20060205227 *28 apr 200614 sep 2006Demetrius SarigiannisAtomic layer deposition methods
US20060205228 *28 apr 200614 sep 2006Demetrius SarigiannisAtomic layer deposition methods
US20060211224 *21 mar 200521 sep 2006Tokyo Electron LimitedPlasma enhanced atomic layer deposition system and method
US20060246699 *20 mar 20062 nov 2006Weidman Timothy WProcess for electroless copper deposition on a ruthenium seed
US20070054046 *6 sep 20058 mar 2007Tokyo Electron LimitedMethod of forming a tantalum-containing layer from a metalorganic precursor
US20070054047 *6 sep 20058 mar 2007Tokyo Electron LimitedMethod of forming a tantalum-containing layer from a metalorganic precursor
US20080041313 *26 okt 200721 feb 2008Ling ChenGas delivery apparatus for atomic layer deposition
US20080085611 *9 okt 200710 apr 2008Amit KhandelwalDeposition and densification process for titanium nitride barrier layers
US20080099933 *31 okt 20061 maj 2008Choi Kenric TAmpoule for liquid draw and vapor draw with a continous level sensor
US20080241386 *5 maj 20082 okt 2008Micron Technology, Inc.Atomic Layer Deposition Methods
US20080274299 *11 jul 20086 nov 2008Ling ChenApparatus and method for hybrid chemical processing
US20090078916 *25 sep 200726 mar 2009Applied Materials, Inc.Tantalum carbide nitride materials by vapor deposition processes
US20090081868 *25 sep 200726 mar 2009Applied Materials, Inc.Vapor deposition processes for tantalum carbide nitride materials
US20090087585 *28 sep 20072 apr 2009Wei Ti LeeDeposition processes for titanium nitride barrier and aluminum
US20090104775 *3 mar 200623 apr 2009Narishi GonoheMethod for Forming Tantalum Nitride Film
US20090151633 *13 feb 200918 jun 2009Ling ChenMethod and apparatus for generating a precursor for a semiconductor processing system
US20090202710 *4 feb 200913 aug 2009Christophe MarcadalAtomic layer deposition of tantalum-containing materials using the tantalum precursor taimata
US20090280640 *20 apr 200912 nov 2009Applied Materials IncorporatedDeposition and densification process for titanium nitride barrier layers
US20090308318 *20 aug 200917 dec 2009Ling ChenApparatus and method for hybrid chemical processing
US20100062149 *13 maj 200911 mar 2010Applied Materials, Inc.Method for tuning a deposition rate during an atomic layer deposition process
US20100120245 *7 nov 200813 maj 2010Agus Sofian TjandraPlasma and thermal anneal treatment to improve oxidation resistance of metal-containing films
US20110026297 *30 jul 20093 feb 2011Art Talent Industrial LimitedVariable and reversible resistive element, non-volatile memory device and methods for operating and manufacturing the non-volatile memory device
US20110175233 *31 dec 201021 jul 2011Akira UekiSemiconductor device and method for fabricating the same
US20120111271 *9 okt 200810 maj 2012Begarney Michael JChemical vapor deposition reactor
US20120156872 *30 nov 201121 jun 2012Applied Materials, Inc.Methods for depositing materials in high aspect ratio features
US20120266821 *21 jun 201225 okt 2012Asm America, Inc.Reaction system for growing a thin film
US20160329238 *19 jul 201610 nov 2016Lam Research CorporationInhibitor plasma mediated atomic layer deposition for seamless feature fill
EP1507289A2 *13 aug 200416 feb 2005Texas Instruments IncorporatedDiffusion barrier for copper lines in integrated circuits
EP1507289A3 *13 aug 200423 mar 2005Texas Instruments IncorporatedDiffusion barrier for copper lines in integrated circuits
WO2004106584A1 *27 maj 20049 dec 2004Applied Materials, Inc.Method and apparatus for generating a precursor for a semiconductor processing system
Klassificeringar
USA-klassificering427/402, 427/304, 427/404, 257/E21.171, 427/419.7, 427/58
Internationell klassificeringC23C16/34, C23C16/44, C23C16/455, H01L21/285, H01L21/768
Kooperativ klassningC23C16/4411, C23C16/45504, H01L21/28562, C23C16/45563, H01L21/76871, C23C16/45544, C23C16/45512, C23C16/45525, C23C16/34, C23C16/45508, H01L21/76843, C23C16/4412, C23C16/45582, H01L21/76846
Europeisk klassificeringC23C16/34, C23C16/44H, C23C16/455F2D, C23C16/44C, C23C16/455K, H01L21/768C3B4, H01L21/768C3S, H01L21/285B4H2, H01L21/768C3B, C23C16/455B, C23C16/455M, C23C16/455A2, C23C16/455A6, C23C16/455F2
Juridiska händelser
DatumKodHändelseBeskrivning
10 jul 2002ASAssignment
Owner name: APPLIED MATERIALS, INC., CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHUNG, HUA;CHEN, LING;REEL/FRAME:013099/0317
Effective date: 20020710