Patent ID: 7470987
Filing Date: 2008-12-30
Classification: H01L,H05K

Abstract:
1. A semiconductor device comprising: a semiconductor element having first and second electrodes formed on a first surface; a sub-mount substrate disposed so that a confronting surface of the sub-mount substrate faces the first surface of the semiconductor element, the sub-mount substrate having first and second extension layers disposed at positions facing the first and second electrodes; first and second pad electrodes respectively formed on the first and second extension layers, the first and second pad electrodes respectively facing the first and second electrodes; a levee film made of insulating material and disposed on the first surface of the semiconductor element, the levee film having first and second openings formed therethrough at positions corresponding to the first and second electrodes; a first connection member for electrically connecting the first electrode and the first pad electrode via the first opening and not completely burying an inside of the first opening; and a second connection member for electrically connecting the second electrode and the second pad electrode via the second opening and not completely burying an inside of the second opening; wherein the first connection member comprises a bottom portion facing the sub-mount substrate, a surface of the bottom portion of the first connection member is broader than a surface of the first pad electrode facing the semiconductor element, and the levee film is in tight adhesion to a partial area of the surface of the top portion of the first connection member via a first adhesion layer made of material enhancing tight adhesion therebetween.