Current limited insulated gate device

Details Current limited insulated gate device Current limited insulated gate device

1985-12-11

1987-02-03

Clawson, Jr., Joseph E.

357 20, 357 38, 357 86, H01L 2906

Patent

active

046411623

ABSTRACT:
A current limited insulated gate transistor (IGT) is disclosed wherein the individual cells are rectangular and each has four discrete, mutually spaced emitter regions to provide a reduced gate periphery. Each cell lacks emitter portions at the cell corners to reduce current crowding in the corner areas. The size of each cell is kept small to decrease the forward voltage drop of the IGT at its operating current level and the spacing between individual cells of the IGT is minimized in order to further reduce the maximum IGT current. These features enable the cell to survive a short-circuit load condition by preventing the maximum current from reaching the latch-up level.

REFERENCES:
patent: 4580154 (1986-04-01), Coe

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