METHOD FOR GALVANIC GOLD COATING OF SEMICONDUCTOR DEVICE HOUSINGS Russian patent published in 2024 - IPC C25D3/48 H01L31/18 

Abstract RU 2815518 C1

FIELD: semiconductor electronics.

SUBSTANCE: used when applying galvanic coatings to the housings of semiconductor devices. The method includes chemical or galvanic deposition of nickel, galvanic deposition of gold, final rinsing in distilled or deionized water and drying; after rinsing and drying, the housings are sharply heated for 3-6 seconds to a temperature of 300-350 °C, and after cooling the cases, additional final rinsing and drying is carried out.

EFFECT: removal of electrolyte and salts hidden in microcavities from the surface of the coating, which can lead to corrosion of the metal pads of the crystal, aluminium mounting conductors, etc., of a mounted device in a gold-plated housing.

1 cl, 2 tbl, 1 dwg

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RU 2 815 518 C1

Authors

Sidorov Vladimir Alekseevich

Chuprunov Aleksei Gennadevich

Grishaeva Aleksandra Sergeevna

Sidorov Kirill Vladimirovich

Dates

2024-03-18Published

2023-08-23Filed