A microelectronic assembly and a method for forming a microelectronic assembly are provided. A semiconductor substrate (22) is provided. The semiconductor substrate (22) has first and second opposing sides (24, 26) and first and second portions (28, 30). A tuning depression (32) is formed on the second...http://www.google.se/patents/US8168464?utm_source=gb-gplus-sharePatent US8168464 - Microelectronic assembly with an embedded waveguide adapter and method for forming the same
