Patent ID: 8300127
Filing Date: 2012-10-30
Classification: H01L

Abstract:
1. A solid-state imaging device receiving incident light from a backside thereof, the solid-state imaging device comprising: a semiconductor layer on which a plurality of pixels including photoelectric converters and pixel transistors are formed, the semiconductor layer having oppositely facing first and second surfaces; a wiring layer formed on the first surface of the semiconductor layer, the wiring layer having a conductive layer therein; a pad portion formed on the second surface of the semiconductor layer; an on-chip microlens layer carried on the second surface of the semiconductor layer; an opening in the semiconductor layer that extends in a vertical direction from the second surface and into the wiring layer so as to extend to the conductive layer, the opening having at least one sidewall extending in the vertical direction, the conductive layer being exposed at a bottom of the opening; an insulating film covering the at least one sidewall of the opening in the vertical direction; a passivation layer covering the at least one sidewall of the opening in the vertical direction over the insulating film; and a portion of the mircrolens layer covering the at least one sidewall of the opening in the vertical direction over the passivation layer.