Glass-or ceramic-to-metal seals

Details Glass-or ceramic-to-metal seals Glass-or ceramic-to-metal seals

C - Chemistry, Metallurgy

03

C

49/81

C03C 27/04 (2006.01) B23K 35/00 (2006.01) C04B 37/02 (2006.01) H01S 3/03 (2006.01)

Patent

CA 1144761

GLASS-OR CERAMIC-TO-METAL SEALS ABSTRACT OF THE DISCLOSURE A method for making a glass-or ceramic-to- metal seal, and the seal itself. A layer of gold is deposited onto the metal. A thin layer of indium is placed over the gold, and the structure is heated above the melting point of indium to create a gold-indium alloy at the gold-indium interface. After cooling, the indium surface of the structure and the glass surface are super- cleaned. The super-cleaned surface are then pressed together to form an air-tight seal.

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