Patent ID: 9536821
Date: 2017-01-03
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a semiconductor substrate; a multilayer wiring layer formed over the semiconductor substrate; a pad formed over the multilayer wiring layer and formed of a laminated film comprising a first metal film formed over the multilayer wiring layer and a second metal film formed over the first metal film; and a first insulating film formed over the multilayer wiring layer, the first metal film and the second metal film, wherein the first insulating film has a first opening such that a first portion of an upper surface of the first metal film of the pad is exposed to the first opening, wherein the second metal film has a slit spaced from the first opening in plan view such that a second portion of the upper surface of the first metal film of the pad is exposed to the slit, wherein the slit is covered by the first insulating film, and wherein the slit surrounds the first opening in plan view.