Patent ID: 8519493

Claim:
A semiconductor device comprising: a first substrate including first, second and third layers, which are stacked in this order; a second substrate; and a loop bump, wherein the first layer is made of silicon, the second layer is made of an insulation material, and the third layer is made of silicon, wherein the first substrate provides a physical quantity sensor, wherein the second substrate provides an electric device, wherein the physical quantity sensor includes a movable electrode, a fixed electrode and a loop layer, which are disposed in the third layer, wherein the movable electrode and the fixed electrode are insulated by the second layer, wherein the physical quantity sensor detects a physical quantity based on a capacitance between the movable electrode and the fixed electrode, wherein the loop layer in the third layer is coupled with the second substrate via the loop bump, wherein the loop bump is disposed between the first and second substrates, and surrounds the movable portion, wherein the second substrate includes an inner pad, an outer pad and a wire layer, wherein the inner pad is disposed inside of the loop bump, and the outer pad is disposed outside of the loop bump, wherein the inner pad is electrically coupled with the outer pad through the wire layer, and wherein the wire layer is electrically insulated from the loop bump.