Patent ID: 7705465

Claim:
A surface-mount type optical semiconductor device comprising: a base formed of a glass substrate; a recess fanned on a first main surface of the base; a through hole that extends from a bottom surface of the recess to a second main surface of the base, forming a first opening at the bottom surface of the recess and a second opening at the second main surface of the base; an inner wall conductive film that is formed on an inner wall surface of the through hole; a wiring pattern that is made of a conductive film formed on the bottom surface of the recess at a region around the first opening of the through hole so as to be connected electrically to the inner wall conductive film; an optical semiconductor element that is bonded to the wiring pattern via a conductive bonding material; a terminal portion that is made of a conductive film formed on the second main surface at a region around the second opening of the through hole such that it is connected electrically to the inner wall conductive film; and a metal portion that is filled into a bore of the through hole so as to be bonded to the inner wall conductive film to clog the through hole.