Silver-glass pastes
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United States of America Patent
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Nov 17, 1992
Issued Date -
N/A
app pub date -
Oct 29, 1990
filing date -
Sep 23, 1988
priority date (Note) -
Expired
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Abstract
An improved silver-glass paste for bonding a silicon die to a ceramic substrate consisting essentially of silver flake, glass, resin, surfactant containing lyophilic and lyophobic groups and solvent. The surfactant provides a steric barrier around the silver and glass to stabilize the paste and reduce voiding and cracking when the paste is used to bond the die to the substrate.
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