Patent ID: 6166431
Filing Date: 2000-12-26
Classification: H01L

Abstract:
A semiconductor device comprising:a wiring board havinga first face and a second face, the first face having a first region and a second region surrounding the first region, the first region being recessed relative to the second region,a first wiring pattern having connecting pads in the second region of the first face,a second wiring pattern on the second face, andconnecting means for connecting the first wiring pattern and the second wiring pattern;a semiconductor chip mounted in the first region of the first face of the wiring board, the semiconductor chip having a first face and a second face, and connecting electrodes on the first face;bonding wires for connecting the connecting electrodes of the semiconductor chip and the connecting pads of the first wiring pattern;a sealing member for sealing the semiconductor chip and the bonding wires formed on the first face of the wiring board; andwherein the sealing member is formed by transfer molding in a mold to form the semiconductor device having a thickness of 1 mm or less, and a difference between a thickness of the sealing member at the portion of the semiconductor chip and a thickness of the sealing member at the second region of the first face of the wiring board is 0.2 mm or less.