Patent ID: 8976282
Filing Date: 2015-03-10
Classification: H01L

Abstract:
1. A solid-state image sensor comprising: a semiconductor layer having a first face and a second face; and a wiring structure arranged on a side of the first face, wherein a plurality of photoelectric converters are arranged in the semiconductor layer, wherein light from an object is incident on the second face, wherein the wiring structure includes: a plurality of reflection portions arranged for at least some of the plurality of photoelectric converters, each of the plurality of reflection portions having a reflection region; a plurality of light absorbing portions each of which is arranged around the reflection region of corresponding one of the plurality of reflection portions; an insulator portion arranged to surround each of the plurality of light absorbing portions; and an interlayer insulating film arranged between the first face and a group of the plurality of reflection portions, the plurality of light absorbing portions, and the insulator portion, and wherein a reflectance of each of the plurality of light absorbing portions is smaller than a reflectance of the reflection region of corresponding one of the reflection portions, and a light transmittance of each of the plurality of light absorbing portions is smaller than a light transmittance of the insulator portion.