Patent ID: 9515104
Filing Date: 2016-12-06
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a semiconductor substrate having a main surface; a light receiving element region formed in said main surface of said semiconductor substrate, in which light receiving elements for performing photoelectric conversion are formed; a peripheral region formed outside said light receiving element region in said main surface of said semiconductor substrate for performing input/output of electric signals from/to said semiconductor substrate; a boundary region formed between said light receiving element region and said peripheral region in plan view; a plurality of signal lines arranged in said boundary region for performing input/output of electric signals between said light receiving element region and said peripheral region; and a CMP dummy arranged in a layer different from each of the plurality of said signal lines, wherein a relative position of said CMP dummy with respect to each of the plurality of said signal lines is the same, wherein said CMP dummy is arranged in a single layer, wherein a fixed potential is applied to said CMP dummy, and wherein said CMP dummy overlaps with each of the plurality of said signal lines in plan view.