Patent ID: 8089162
Filing Date: 2012-01-03
Classification: H01L

Abstract:
1. A semiconductor device, comprising: an element region including a wiring structure in a low dielectric constant insulating film; and a pad region electrically connecting said element region and the outside, in which the low dielectric constant insulating film is formed in association with in said element region, wherein an occupied density of a plurality of first connection holes formed in the low dielectric constant insulating film in said pad region is higher than an occupied density of a second connection hole in any of portions of the wiring structure in said element region, wherein a Young's modulus of the low dielectric constant insulating film is 20 GPa and below, wherein the plurality of first connection holes are formed in such a manner to be distributed substantially evenly in said pad region, wherein a wiring electrically connecting said element region and the outside is formed above the low dielectric constant insulating film in said pad region, wherein the first connection hole is enclosed by and directly connected to the wiring, wherein the first connection hole is formed of a plurality of concentric trench shaped connection holes, the trench shaped connection holes are rectangular shaped at the top point of view, and at least one concentric trench shaped connection hole of the plurality of concentric trench shaped connection holes encloses remaining concentric trench shaped holes of the plurality of concentric trench shaped connection holes in plan view.