METHOD OF THINNING PHOTOSENSITIVE LAYER OF MATRIX PHOTODETECTOR Russian patent published in 2025 - IPC H10F10/00 B24B37/04 H01L21/02 

Abstract RU 2840324 C2

FIELD: physics.

SUBSTANCE: invention relates to the technology of making semiconductor devices which are sensitive to infrared radiation, and can be used to thin the photosensitive layer of a photodetector array. Method involves hybridisation of a photosensitive element with a reading LSI and thinning of the matrix module, which is carried out by chemical-mechanical polishing (CMP) and subsequent chemical-dynamic polishing (CDP). Disclosed are conditions for conducting CMP and CDP.

EFFECT: minimum effect on the crystalline structure of the material, non-flatness of the surface is achieved within the limits ±(1–5) mcm with matrix module size of about 10 × 10 mm.

1 cl, 2 dwg

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RU 2 840 324 C2

Authors

Mirofyanchenko Andrej Evgenevich

Razmakhnin Ivan Dmitrievich

Shutov Kirill Andreevich

Ulkarov Vadim Ajratovich

Eroshenkov Vladimir Vladimirovich

Mirofyanchenko Ekaterina Vasilevna

Dates

2025-05-21Published

2022-10-17Filed