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FIIG:  A110A0

Entry Date:  Feb-17-1978

Concept:  1

Status:  A

Applicability:  D

Type:  0

Definition:  A bistable semiconductor device comprising three or more junctions which is normally a nonconductor until the application of a signal to a gate terminal, at which time the device switches to the conductive state. Includes devices capable of being switched back to the nonconductive state upon application of a different signal to the same or another gate terminal. May or may not include mounting hardware and/or heatsink. For solid state devices which are responsive to visible or infrared radiant energy, see SEMICONDUCTOR DEVICE, PHOTO.

Basic INC:  70627

Basic Name:  SEMICONDUCTOR DEVICE

Description:  1. An electron device in which the characteristic distinguishing electronic conduction takes place within a semiconductor which is an electronic conductor with resistivity in the range between metals and insulators and in which the electrical charge carrier concentration increases with increasing temperature over part of its temperature range. The semiconductor utilizes two types of carriers namely negative electrons and positive holes.