Integrated circuit incorporating a system of protection against

Details Integrated circuit incorporating a system of protection against Integrated circuit incorporating a system of protection against

1995-01-25

1996-05-07

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, 257355, H02H 320, H01L 2362

Patent

active

055152260

ABSTRACT:
In an integrated circuit with protection against electrostatic discharges, there is provided a first voltage limiter connected between a pad to be protected and a ground bus. This first limiter is placed the peripheral part of the integrated circuit in the vicinity of the pad And there is provided a second voltage limiter directly connected to a circuit element to be protected. This second limiter is placed in the useful part of the integrated circuit and not in the peripheral part. Thus, the risks related to the resistors of the ground bus, crossed by high electrostatic discharge currents, are avoided.

REFERENCES:
patent: 4819047 (1989-04-01), Gilfeather et al.
patent: 4945395 (1990-07-01), Suehiro

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