Patent ID: 6856028

Claim:
A semiconductor device comprising: a semiconductor element having a primary surface and a back surface, said semiconductor element having an element electrode on the primary surface; and a circuit board having a primary surface and a back surface, a board electrode on at least the back surface, a predetermined opening hole formed therein and external electrodes disposed on the back surface; wherein the primary surface of said-semiconductor element is bonded to the primary surface of said circuit board by means of an adhesive layer which is greater in size than the primary surface of said semiconductor element, said adhesive layer extends outside an outer edge of the primary surface of said semiconductor element without reaching an outer edge of the primary surface of said circuit board, said adhesive layer extending outward relative to and completely all the way around the primary surface of said semiconductor element to cover an area of the circuit board under which all the external electrodes are disposed, said element electrode of said semiconductor element is connected to said board electrode provided on the back surface of said circuit board via said opening hole, and said semiconductor element and said circuit board directly contact each other via the adhesive layer in order to relieve tension between said semiconductor element and said circuit board by the adhesive layer.