Patent ID: 8169082
Filing Date: 2012-05-01
Classification: B81B,G01C,G01P,H01L

Abstract:
1. A semiconductor device comprising: a first chip having a plate shape with a first side and including a first IC circuit, which is disposed on the first side of the first chip; and a second chip having a plate shape with a second side and including a second IC circuit, which is disposed on the second side of the second chip, wherein the first chip further includes: wherein the second wiring layer includes a first concavity, which is disposed over the first opening and is concaved toward the first opening, wherein the second chip further includes: wherein the fourth wiring layer includes a second concavity, which is disposed over the second opening and is concaved toward the second opening, wherein the first concavity of the second wiring layer faces the second concavity of the fourth wiring layer, and wherein the second wiring layer of the first chip is bonded to the fourth wiring layer of the second chip so that the first side of the first chip is coupled with the second side of the second chip.