Patent ID: 7999281
Filing Date: 2011-08-16
Classification: H01L

Abstract:
1. An optical semiconductor device comprising: an optical semiconductor element including a light-emitting layer formed on a first principal surface, a first electrode formed on the light-emitting layer and having a smaller size than the first principal surface, and a second electrode formed on a second principal surface different from the first principal surface; a first lead portion including a bonding region to which the first electrode is bonded and which has a smaller size than the first principal surface and all of which is flat, and a first groove portion formed on an outer peripheral region adjacent to the bonding region, the first lead portion being electrically connected to the first electrode bonded to the bonding region by use of a bonding member; and a second lead portion electrically connected to the second electrode by use of a connecting member, wherein at least one part of the first groove portion is formed on the outer peripheral region within the bounds of the optical semiconductor element and outside of the bonding region, and wherein the first electrode has a smaller size than the bonding region.