METHOD OF FORMING DEEPLY PROFILED SILICON STRUCTURES Russian patent published in 2019 - IPC H01L21/308 

Abstract RU 2691162 C1

FIELD: technological processes.

SUBSTANCE: essence of the present invention consists in formation of deeply profiled silicon structures by successive operations of isotropic and anisotropic etching, wherein the photolithography is performed on a silicon structure using a photoresist with waterproofing properties.

EFFECT: invention provides higher accuracy of formation of deep profiled silicon structures due to reduced number of used materials.

1 cl, 6 dwg

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RU 2 691 162 C1

Authors

Gusev Evgenij Eduardovich

Dyuzhev Nikolaj Alekseevich

Koltakov Sergej Vladimirovich

Esenkin Kirill Sergeevich

Dates

2019-06-11Published

2018-11-19Filed