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1 723 791

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IPC

(21) (22)

Application

4785939/33, 1990-01-23

(22)

Actual filing date

1990-01-23

(45)

Published

1994-06-15

(72)

Inventor

Sal'Skij V.A.Cherjapina E.V.Borodkina N.D.Kazunin V.I.Kirpichnikov B.Ja.Vodukova M.S.

COMPOSITION FOR METALLIZATION OF CERAMICS Russian patent published in 1994 - IPC

Abstract SU 1723791 A1

FIELD: radioelectronics, electrical engineering. SUBSTANCE: composition is prepared on the base of ultradisperse gold (size of its particles is 1-25 nm) being placed into organic binder. Said binder contains polymethylmethacrylate, acetone and butylacetate. Ratio of components, mass % is: ultradispersed gold 10-35, acetone 15-30, polymethylmethacrylate 0.5-1.0, butylacetate 34.0-74.5. Proposed composition is applied on sublayer with the help of drop method and then is treated by heat within 10 min at 40 C. Yield of desired articles is 98-100% , strength of soldered joint ceramics-monocrystal of silicium is 4.9-7.8 kg/cm². EFFECT: increases desired articles yield. 1 tbl

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SU 1 723 791 A1

Authors

Sal'Skij V.A.

Cherjapina E.V.

Borodkina N.D.

Kazunin V.I.

Kirpichnikov B.Ja.

Vodukova M.S.

Dates

1994-06-15—Published

1990-01-23—Filed