Patent ID: 6966964
Filing Date: 2005-11-22
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising a circuit board, adhesive bonded semiconductor elements on both surfaces of the board, and adhesive interposed between the semiconductor elements and the board, said method comprising: applying a first thermosetting adhesive to one surface of a circuit board, temporarily fixing a semiconductor element on the surface via the first adhesive so that bumps on the semiconductor element are aligned with electrodes on the circuit board, reversing upside down the circuit board having the semiconductor element temporarily fixed thereon, applying second thermosetting adhesive to the other surface of the circuit board, temporarily fixing another semiconductor element on the other surface via the second adhesive so that bumps on the another semiconductor element are aligned with board electrodes on the circuit board, and thermally setting the first and second adhesives simultaneously on both surfaces of the circuit board by heating the semiconductor elements temporarily fixed on both surfaces of the circuit board while applying pressure thereto in directions of pressing each semiconductor elements against the circuit board, and press-bonding the bumps on the semiconductor elements to the opposing electrodes on the circuit board so that said bumps and said electrodes are electrically connected.