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2 156 519

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(51)

IPC

(21) (22)

Application

96113444/28, 1996-06-28

(24)

Start date

1996-06-28

(22)

Actual filing date

1996-06-28

(45)

Published

2000-09-20

(72)

Inventor

Kosarev A.A.

(73)

Holder

Gosudarstvennyj Nauchnyj Tsentr Rossijskoj Federatsii Gosudarstvennoe Predprijatie Ob"Edinenie

CADMIUM-MERCURY TELLURIDE SURFACE PASSIVATING TECHNIQUE Russian patent published in 2000 - IPC

Abstract RU 2156519 C2

FIELD: infrared photodetector manufacture. SUBSTANCE: semiconductor surfaces are subjected to chemical treatment and passivating to obtain thick (up to 3000 A) passivating coatings dispensing with additional protection on Cd_xHg_1-x surface within short time. Sulfidizing solution for passivating film is made of following ingredients, mass percent: sulfur - 0,3- 6; sodium or potassium hydroxide (45% aqueous solution) - 94-99.7. EFFECT: improved efficiency of process and quality of passivating film.

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RU 2 156 519 C2

Authors

Kosarev A.A.

Dates

2000-09-20—Published

1996-06-28—Filed