High voltage complementary NPN/PNP process

Details High voltage complementary NPN/PNP process High voltage complementary NPN/PNP process

1986-04-18

1990-07-10

Hearn, Brian E.

Fishing, trapping, and vermin destroying

437228, 437 26, 437 82, 357 34, H01L 21265

Patent

active

049406710

ABSTRACT:
A process is disclosed for forming high-performance high-voltage PNP transistors in a conventional monolithic, planar, PN junction isolated integrated circuit that contains high-performance NPN transistors. The process permits independently optimizing the NPN and PNP transistors.

REFERENCES:
patent: 3702428 (1972-11-01), Schmitz et al.
patent: 3723199 (1973-03-01), Vora
patent: 3930909 (1976-01-01), Schmitz et al.
patent: 4038680 (1977-07-01), Yagi
patent: 4127864 (1978-11-01), Jochems
patent: 4780425 (1988-10-01), Tabata

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