An electrical device is provided having a conductive coating or layer chemically grafted to a support substrate to produce a durable, conductive surface permanently attached to the underlying substrate material. The grafted layer can be embodied in an electrical contact, and can also be embodied as electrical...http://www.google.com.tw/patents/US5600099?utm_source=gb-gplus-share專利 US5600099 - Chemically grafted electrical devices
