Patent ID: 9076932
Filing Date: 2015-07-07
Classification: H01L

Abstract:
1. An optical semiconductor element mounting package having a recessed part that serves as an optical semiconductor element mounting region, wherein the package is formed by integrating: a resin molding composed of a thermosetting light-reflecting resin composition, which forms at least the side faces of the recessed part; and at least a pair of positive and negative lead electrodes, each of the positive and negative lead electrodes having opposed first and second major surfaces extending continuously from an inner end to an opposite end, the pair of positive and negative lead electrodes being disposed with their inner ends opposite each other so that inner portions of the first major surface of the positive and negative lead electrodes form part of the bottom face of the recessed part, wherein there is no gap at a joint face between the resin molding and the lead electrodes, the inner ends of the positive and negative lead electrodes are separated by the resin molding composed of the thermosetting light-reflecting resin composition and at least portions of the second major surface of the positive and negative lead electrodes are not in contact with the resin molding composed of the thermosetting light-reflecting resin composition, wherein the thermosetting light-reflecting resin composition includes triglycidyl isocyanurate as (A) an epoxy resin.