Metal sealing glass composite with matched coefficients of therm

Details Metal sealing glass composite with matched coefficients of therm Metal sealing glass composite with matched coefficients of therm

1990-04-23

1991-08-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428427, 428433, 428472, 428701, 428702, B32B 1520, B32B 1706

Patent

active

050432222

ABSTRACT:
The present invention relates to a glass for making glass to metal seals. The coefficient of thermal expansion of the glass is in excess of 160.times.10.sup.-7 in/in/.degree.C. making the glass particularly useful for sealing copper and copper based alloys. The glass has particular utility in the manufacture of electronic packages and multi-layer circuitry.

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