C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/220
C08G 73/10 (2006.01) G01R 31/28 (2006.01) H01B 3/30 (2006.01) H01L 21/68 (2006.01) H01R 43/24 (2006.01)
Patent
CA 2006389
Abstract of the Disclosure IC sockets for use in a burn-in test are dis- closed. The IC sockets are produced by injection molding of a specific polyimide having an inherent viscosity of 0.35 to 0.65 dl/g and essentially consisting of recurring units represented by the formula (I): Image (I) wherein X is a radical selected from the group consisting of a bond, divalent hydrocarbon having from 1 to 10 carbon atoms, hexafluorinated isopropylidene etc. and R is a tetravalent radical selected from the group consist- ing of an aliphatic radical having two or more carbon atoms, cycloaliphatic radical, monoaromatic radical etc.
Koga Nobuhito
Morikawa Shuithi
Nagahiro Taizo
Nakakura Toshiyuki
Tsutsumi Toshihiko
Fetherstonhaugh & Co.
Koga Nobuhito
Mitsui Toatsu Chemicals Inc.
Morikawa Shuithi
Nagahiro Taizo
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