Patent ID: 8253258
Filing Date: 2012-08-28
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip formed with an electrode pad on one surface thereof; a wiring board having a wiring pattern, said wiring board having one surface opposing the other surface of said semiconductor chip; a connection member for electrically connecting the electrode pad of said semiconductor chip with the wiring pattern of said wiring board; an external terminal arranged on the other surface of said wiring board for electrical connection with said electrode pad through said connection member and the wiring pattern; and a fixing member for fixing said semiconductor chip on the one surface of said wiring board such that a hollow is formed between the other surface of said semiconductor chip and the one surface of said wiring board, wherein said wiring board includes a throughhole communicating with said hollow, wherein the size of said hollow in a direction parallel to the other surface of said semiconductor chip is equal to or larger than the size of the other surface of said semiconductor chip.