Patent ID: 9053997
Filing Date: 2015-06-09
Classification: H01L,H04N

Abstract:
1. A solid-state image sensor including a pixel region and a peripheral circuit region, the sensor comprising: a signal line arranged in the peripheral circuit to transmit a signal to a circuit arranged in the peripheral region; a dielectric film arranged in the pixel region and the peripheral region, the signal line being arranged in the dielectric film; wiring lines arranged above the dielectric film, the wiring lines being arranged in the pixel region and the peripheral circuit region; dummy patterns arranged above the dielectric film, the dummy patterns being arranged in the peripheral circuit region; and a planarizing layer arranged above the wiring lines and the dummy patterns, the planarizing layer being arranged in the pixel region and the peripheral circuit region, wherein the wiring lines in the peripheral circuit region include a plurality of electrically conductive patterns, and the dummy patterns are arranged between the plurality of electrically conductive patterns, the dummy patterns being electrically insulated from the wiring lines, wherein the wiring lines and the dummy patterns constitute an uppermost wiring layer, wherein a wiring layer including the signal line and arranged immediately below the uppermost wiring layer is arranged in the dielectric film, and wherein the dummy patterns are arranged above the signal lines so as to overlap the signal lines in a planar view.