Patent ID: 6221510
Filing Date: 2001-04-24
Classification: C08K,C08L,H01L,Y10T

Abstract:
An epoxy resin composition for encapsulating a photosemiconductor element comprising the following components (A) to (D):(A) an epoxy resin;(B) a hardener;(C) a silane coupling agent having an epoxy group, a mercapto group or an amino group; and(D) a releasing agent in which a molecule thereof has structure moieties represented by the following general formulas (1) and (2), and in which the weight ratio of the structure moiety represented by general formula (2) is 25% to 95% by weight based on the whole molecule,.paren open-st.CH.sub.2 CH.sub.2.paren close-st..sub.m (1)wherein m is a positive integer of 8 to 100 and.paren open-st.CH.sub.2 CH.sub.2 O.paren close-st..sub.n (2)wherein n is a positive integer.