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Browse Prior Art Database

Brazing Alloy

IP.com Disclosure Number: IPCOM000049697D
Original Publication Date: 1982-Jul-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Brofman, PJ: AUTHOR [+2]

Abstract

This silver alloy is useful as a brazing alloy for KOVAR*, nickel copper and ferrous alloy brazing. It has a melting point in the range of 550 degrees to 650 degreees C. Brazing alloys having the composition of 80 Au-20 Sn have been used to join various elements, such as frames, pins and covers to ceramic substrates in the semiconductor packaging technology. However, the high cost of Au makes the brazing alloy very expensive.

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Brazing Alloy

This silver alloy is useful as a brazing alloy for KOVAR*, nickel copper and ferrous alloy brazing. It has a melting point in the range of 550 degrees to 650 degreees C. Brazing alloys having the composition of 80 Au-20 Sn have been used to join various elements, such as frames, pins and covers to ceramic substrates in the semiconductor packaging technology. However, the high cost of Au makes the brazing alloy very expensive.

The following Ag alloys can be substituted for the more expensive gold/tin alloy (compositions in percent by wt.): Ag Cu In Sn

60 10 20 10

60 15 10 15 * Trademark of Westinghouse Electric Corporation.

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