Device for protection against leakage currents in integrated cir

Details Device for protection against leakage currents in integrated cir Device for protection against leakage currents in integrated cir

1981-05-13

1984-08-14

Larkins, William D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307303, 357 86, H01L 2704

Patent

active

044660111

ABSTRACT:
In a bipolar integrated circuit, wherein the elementary components are formed in islands of an N-type epitaxial layer surrounded by P-type isolation walls, a protection against leakage currents is obtained by surrounding an island susceptible to receive negative voltage surges with an annular island. The isolation wall between the considered island and the annular island is connected to the potential of the most negative supply source and the isolation wall external to the annular island is connected thereto.

REFERENCES:
patent: 3590345 (1971-06-01), Brewer et al.
patent: 3676714 (1972-07-01), Wersink et al.
patent: 3878551 (1975-04-01), Callahan, Jr.
patent: 3931634 (1976-01-01), Knight
patent: 3940785 (1976-02-01), Genesi
patent: 4027325 (1977-05-01), Genesi
patent: 4044373 (1977-08-01), Nomiya et al.
Electronics Jul. 24 1975, pp. 31-32.
Frederiksen et al., IEEE J. of Solid State Circuits, vol. SC 9 No. 6, Dec. 1974, pp. 400-401.

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