Patent ID: 8319228
Filing Date: 2012-11-27
Classification: C08G,C08L,H01L

Abstract:
1. An optical semiconductor device comprising a lead frame for an optical semiconductor device comprising one or more optical-semiconductor-element mounting regions and a resin wall, wherein a circumference of at least one of said element mounting region is surrounded by the resin wall formed from a resin composition comprising the following ingredients (A) to (D): (A) an epoxy resin; (B) a curing agent; (C) a polyorganosiloxane; and (D) 2 to 90% by weight of a white pigment based on the entire resin composition; and an optical semiconductor element mounted on a predetermined position in the lead frame, wherein the resin wall does not contact the optical semiconductor element, wherein the ingredient (C) is contained in an amount of 5 to 60% by weight based on all organic components including the ingredients (A) to (C).