Input protection device

Details Input protection device Input protection device

1991-07-15

1992-11-24

Prenty, Mark V.

Active solid-state devices (e.g., transistors, solid-state diode

Bipolar transistor structure

With enlarged emitter area

361 56, H01L 2906, H01L 2972, H02H 900

Patent

active

051667649

ABSTRACT:
An integrated circuit has an input protection device including a bipolar transistor to shunt current away from sensitive areas of the circuit during an e.s.d. event. The bipolar transistor includes floating electrodes on the base to define an equipotential base region so that the effective size of the emitter, and hence the currently handling capability of the transistor, is increased.

REFERENCES:
patent: 4720737 (1988-01-01), Shirato

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