公开(公告)号：CA2006389A1

公开(公告)日：1990-06-27

申请号：CA2006389

申请日：1989-12-21

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TSUTSUMI TOSHIHIKO ,  NAKAKURA TOSHIYUKI ,  NAGAHIRO TAIZO ,  MORIKAWA SHUITHI ,  KOGA NOBUHITO

IPC: C08G73/10 ,  G01R31/28 ,  H01B3/30 ,  H01L21/68 ,  H01R43/24

Abstract: IC sockets for use in a burn-in test are disclosed. 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): (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 consisting of an aliphatic radical having two or more carbon atoms, cycloaliphatic radical, monoaromatic radical etc.

公开(公告)号：DE68927376D1

公开(公告)日：1996-11-28

申请号：DE68927376

申请日：1989-12-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TSUTSUMI TOSHIHIKO ,  NAGAHIRO TAIZO ,  NAKAKURA TOSHIYUKI ,  MORIKAWA SHUITHI

IPC: C08G73/10 ,  G01R31/28 ,  H01B3/30 ,  H01L21/68 ,  H01R43/24 ,  H05K7/10 ,  C08G73/16 ,  H01B3/38

Abstract: IC sockets for use in a burn-in test are disclosed. 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): 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 consisting of an aliphatic radical having two or more carbon atoms, cycloaliphatic radical, monoaromatic radical etc.