Patent ID: 7470979
Filing Date: 2008-12-30
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor chip that has a first surface and a second surface opposite to the first surface; a first electrode that is formed on the first surface of the semiconductor chip; a stress relieving layer that is provided on the first surface of the semiconductor chip so as to avoid at least a part of the first electrode; a protective film that is formed on the second surface of the semiconductor chip; a wiring that extends from the first electrode to the stress relieving layer, a first portion of the wiring being disposed on at least a part of the stress relieving layer, the first portion of the wiring having a width narrower than a width of the first electrode in a direction parallel to the first surface of the semiconductor chip; and a second electrode that is formed on the wiring, the second electrode being formed above the stress relieving layer.