Patent ID: 7307350
Filing Date: 2007-12-11
Classification: C08K,C09J,H01L,Y10T

Abstract:
1. An IC chip bonding sheet comprising a. a porous polytetrafluoroethylene layer comprised by at least one porous polytetrafluoroethylene sheet having b. an adhesive resin layer comprising a bromine-free flame retardant resin composition on each of said first surface and said second surface, wherein said adhesive resin layer is an adhesive resin sheet comprising a porous polytetrafluoroethylene sheet impregnated with adhesive resin laminated to said porous polytetrafluoroethylene layer; c. wherein said adhesive resin layer contains phosphorus; and d. wherein total phosphorus content of said IC chip bonding sheet is 0.08-1.0 mass %.