Patent ID: 8471300
Filing Date: 2013-06-25
Classification: H01L

Abstract:
1. An image sensor device comprising: a semiconductor layer including a light sensing region therein; an interlayer dielectric layer on the semiconductor layer, wherein the interlayer dielectric layer defines a planar surface opposite the semiconductor layer; an electrically conductive reflector on the planar surface of the interlayer dielectric layer so that the interlayer dielectric layer is between the electrically conductive reflector and the light sensing region of the semiconductor layer; and an electrically conductive interconnection structure spaced apart from the electrically conductive reflector on the planar surface of the interlayer dielectric layer so that the interlayer dielectric layer is between the semiconductor layer and the electrically conductive interconnection structure and so that an interface between the electrically conductive interconnection structure and the interlayer dielectric layer is coplanar with an interface between the electrically conductive reflector and the interlayer dielectric layer.