Patent ID: 9368545
Filing Date: 2016-06-14
CPC Classification: H01L

Claim Text:
1. A method comprising: forming a plurality of isolation spacers separating a plurality of discrete bottom electrodes from each other, with edges of the plurality of discrete bottom electrodes contacting edges of the plurality of isolation spacers; filling spaces between the plurality of isolation spacers with a photoelectrical conversion material to form a plurality of photoelectrical conversion regions; and forming a continuous top electrode over the plurality of photoelectrical conversion regions, wherein forming the plurality of isolation spacers and the forming the plurality of discrete bottom electrode comprise: forming a continuous bottom electrode; forming a sacrificial layer over the continuous bottom electrode; and etching the sacrificial layer and the continuous bottom electrode to form openings in the sacrificial layer and the continuous bottom electrode, wherein the openings create the plurality of discrete bottom electrodes from the continuous bottom electrode.