SEMICONDUCTOR IS AN OXIDE OF A METAL (E.G., CuO, ZnO) OR COPPER SULFIDE:
(under the class definition) Subject matter wherein a semiconductor material includes a metal oxide or copper sulfide.
(1) Note. Those variable resistors known as "coherers" which are active solid-state devices, and are made of a metal oxide, are found in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
798, for other active solid-state device type coherers.
SEE OR SEARCH CLASS
338, Electrical Resistors,
1, and 223+ for passive solid-state coherers.
438, Semiconductor Device Manufacturing: Process, 85, for processes of making a light responsive device utilizing as the semiconductive component a metal oxide or copper sulfide and subclasses 104 for methods of forming an electrical device utilizing as a semiconductive component a metal oxide or copper sulfide.
