Patent ID: 6265042
Filing Date: 2001-07-24
Classification: C09J,H01L,Y10T

Abstract:
An adhesive tape for electronic parts comprising a heat resisting film and an adhesive layer provided on at least a side of said heat resisting film, wherein said adhesive layer contains at least a polyimide comprising 100-30% by mol of at least one of the repeating units represented by the following formulas (1a) and (1b) and 0-70% by mol of at least one of the repeating units represented by the following formulas (2a) and (2b) and 0.1-15 parts by weight of a silane coupling agent based on 100 parts by weight of said polyimide: ##STR8##wherein Ar represents a divalent group selected from the following formulas containing aromatic rings: ##STR9##wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be identical or different represent each a hydrogen atom, an alkyl group having 1-4 carbon atoms or an alkoxy group having 1-4 carbon atoms, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are not hydrogen atoms at the same time: ##STR10##wherein R is an alkylene group having 1 to 10 carbon atoms or --CH.sub.2 OC.sub.6 H4--, the methylene group of which attaches to Si, and n means an integer of 1 to 20.