Compositions – Electrically conductive or emissive compositions – Free metal containing
Patent
1989-05-12
1990-12-04
Barr, Josephine
Compositions
Electrically conductive or emissive compositions
Free metal containing
252513, 252514, 252518, 252520, 252521, 523454, 523458, 523427, 428418, 428413, 156330, H01B 106
Patent
active
049752219
ABSTRACT:
This invention presents improved epoxy-based die attach adhesives which are of low viscosity, high ionic purity, and stable toward thermal cycling. This improvement is obtained by including in the formulation carboxy terminated polymers which are the reaction products of polyether diols with cyclic dianhydrides.
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Chen Shuhchung S.
Park Song
Schoenberg Jules E.
Barr Josephine
National Starch and Chemical Investment Holding Corporation
Ronning, Jr. Royal N.
Szala Edwin M.
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