Patent ID: 9543343
Date: 2017-01-10
CPC Classifications: H01L

Claim:
1. An image sensor device, comprising: a semiconductor substrate; a photodetector in the semiconductor substrate; a dielectric layer over the semiconductor substrate, wherein the dielectric layer has a recess aligned with the photodetector; a filter in the recess of the dielectric layer, wherein the filter has a protruding portion protruding from a bottom surface of the dielectric layer; a shielding layer between the dielectric layer and the semiconductor substrate and surrounding the filter, wherein the filter and the shielding layer overlap from a view facing a direction perpendicular to a normal direction of a top surface of the semiconductor substrate, and the shielding layer surrounds the protruding portion of the filter; and a reflective element directly below the shielding layer, wherein the shielding layer is thinner than the reflective element.