Patent ID: 7687896
Filing Date: 2010-03-30
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a first semiconductor chip having an active first chip surface and a non-active first chip surface, and a wiring on the active first chip surface, the active first chip surface and the non-active first chip surface having a first through hole formed therethrough; a terminal for external connection, provided on the non-active first chip surface of the first semiconductor chip; and 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 and the non-active second chip surface having a second through hole formed therethrough, internal functional elements formed on the active second chip surface, and an internal wiring mutually connecting the internal functional elements, the active second chip surface facing the active first chip surface of the first semiconductor, wherein the wiring of the first semiconductor chip has a sectional area greater than a sectional area of the internal wiring of the second semiconductor chip.