METHOD OF PREPARING SUBSTRATE SURFACE FROM ALUMINUM NITRIDE CERAMICS FOR THIN FILM METALLIZATION Russian patent published in 2020 - IPC H01L21/46 C23C28/02 

Abstract RU 2724291 C1

FIELD: technological processes.

SUBSTANCE: invention relates to preparation of substrate surface from aluminum nitride ceramics for thin-film metallization. In thin-film metallization method of substrates from aluminonitride ceramics, including substrate cleaning, deposition of a metal coating system by vacuum deposition, the first layer of which is a metal which chemically interacts with aluminum oxide, and the second copper, directly before sputtering of metals, by plasma treatment on the surface of the substrate, a layer of α-Al2O3 is formed. First layer of metallization preferably is selected from vanadium, niobium or tantalum.

EFFECT: high-quality formation of metallization systems, resistors, and other elements on aluminum nitride-based ceramic substrates, using methods used by traditional methods for ceramics based on aluminum oxide.

1 cl, 1 dwg

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RU 2 724 291 C1

Authors

Savchenko Evgenij Matveevich

Chuprunov Aleksej Gennadevich

Sidorov Vladimir Alekseevich

Pronin Andrej Anatolevich

Dates

2020-06-22Published

2019-10-31Filed