METHOD FOR MANUFACTURING OF MOS INTEGRAL CIRCUITS Russian patent published in 1998 - IPC

Abstract RU 2105382 C1

FIELD: integral microelectronics, in particular, manufacturing of single-channel and complement MOS integral circuits for digital, linear and analog applications. SUBSTANCE: method involves sequential generation of contact points to semiconductor plate in layers of polycrystal silicon and under-gate oxide, application of second layer of polycrystal silicon and layer of silicon nitride, generation of gates, contact holes to semiconductor plate and isolation regions between drains and guarding regions in layers of silicon nitride and polycrystal silicon, doping regions of drains, sources and guarding regions, removal of silicon nitride from isolation regions between drains and guarding regions, thermal oxidizing, removal of silicon nitride in order to open contact holes to diffusion regions and gates, generation of metal wiring. EFFECT: increased good-to-bad output ratio, increased stability of integral circuits to adverse conditions, increased density, increased speed of integral circuits. 9 dwg

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RU 2 105 382 C1

Authors

Babaev Boris Aleksandrovich

Gureev Sergej Aleksandrovich

Derendjaev Vasilij Vasil'Evich

Zelentsov Aleksandr Vladimirovich

Sel'Kov Evgenij Stepanovich

Shchetinin Jurij Ivanovich

Dates

1998-02-20Published

1995-08-02Filed