Patent ID: 6445076
Filing Date: 2002-09-03
Classification: C09J,H01L

Abstract:
An insulating adhesive for an electronic part, which is to be used for bonding a semiconductor chip to a lead frame and comprises a resin and a solvent, the resin having(A) a weight average molecular weight (Mw) of 30,000 to 300,000 based on conversion into polystyrene and (B) a ratio of weight average molecular weight (Mw)/number average molecular weight (Mn) of 5 or less, and (C) the insulating adhesive for an electronic part having a viscosity of 5,000 to 100,000 mPa.s at a rotation number of 10 rpm and a viscosity ratio (&eegr;1 rpm/&eegr;10 rpm) of 1.0 to 6.0 as measured at 25Â° C. with an E-type viscometer.