Patent ID: 7091591

Claim:
A semiconductor device, comprising: a first semiconductor chip having an active first chip surface and a non-active first chip surface; a second semiconductor chip bonded to the active first chip surface of the first semiconductor chip, the second semiconductor chip having an active second chip surface and a non-active second chip surface, the active second chip surface facing the active first chip surface of the first semiconductor chip; a third semiconductor chip bonded to the non-active second chip surface of the second semiconductor chip, the third semiconductor chip having an active third chip surface and a non-active third chip surface, the active third chip surface facing the non-active second chip surface of the second semiconductor chip; a wiring, provided within a through hole formed in the second semiconductor chip, for electrically connecting the second semiconductor chip and the third semiconductor chip; and a terminal for external connection provided on the non-active first chip surface of the first semiconductor chip.