POLISHING COMPOSITION FOR CHEMICAL-MECHANICAL POLISHING OF PLATES OF MONOCRYSTALLINE INDIUM ANTIMONIDE Russian patent published in 2025 - IPC C09G1/18 H01L21/304 

Abstract RU 2834696 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a polishing composition for chemical-mechanical polishing of plates of monocrystalline indium antimonide. Disclosed is a polishing composition comprising a sol containing silicon dioxide particles with an average particle size of 60 nm with a weight content of particles in ash of 50 wt.%, and aqueous solutions of tartaric and lactic acids as a complexing agent, aqueous solutions of hydrogen peroxide and ammonium paramolybdate, as well as an aqueous solution of sulfamic acid as a pH stabilizing agent.

EFFECT: providing uniform stable polishing of the entire surface of the plate of monocrystalline indium antimonide and obtaining surface roughness of not more than 0.5 nm, without scratches and through chips.

1 cl, 1 tbl, 5 ex

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RU 2 834 696 C1

Authors

Kozlov Roman Yurevich

Abramova Elena Nikolaevna

Pavlov Pavel Vitelevich

Pavlova Olesya Sergeevna

Nestyurkin Mikhail Sergeevich

Nefedkina Svetlana Sergeevna

Dates

2025-02-12Published

2024-03-13Filed