(under subclass 168) Subject matter having an element with conductivity intermediate that of a conductor and an insulator and having one region having predominantly electron conductivity (n-type) and another region having predominantly hole (p-type) conductivity forming a potential barrier layer therebetween.
SEE OR SEARCH CLASS
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),
53+, 108, 225+, and 414+ for nonelectrical input devices, including subclasses 415+ for pressure sensors.
