Patent ID: 9000492
Filing Date: 2015-04-07
Classification: H01L

Abstract:
1. A back-illuminated solid-state image pickup device comprising: a first conductivity type semiconductor substrate having a light incident surface at a back surface side; a second conductivity type semiconductor layer provided on an opposite side of the light incident surface of first conductive type semiconductor substrate; an insulating layer provided on the second conductive type semiconductor layer, a first interface being formed between the second conductivity type semiconductor layer and the insulating layer and a charge transfer electrode disposed on an opposite side of the first interface of the insulating layer, wherein the solid-state image pickup device is a charge coupled device, the first conductivity type semiconductor substrate and the second conductivity type semiconductor layer are comprised of silicon, and the first interface has an uneven surface comprised of a plurality of concaves distributed over the first interface, wherein the concaves continue smoothly, and the charge transfer electrode covers the plurality of concaves.