For contacting a non-linear switching element (10), for example for use in a display device (1), a metallic layer (14) is provided on a layer of non-linear resistive material by means of a low-energetic deposition technique. This layer may function as a contact but also as a protective layer when a contact...http://www.google.se/patents/US6005260?utm_source=gb-gplus-sharePatent US6005260 - Non-linear switching element of an electro-optical display device with metallic protective layer
