Patent ID: 8304815

Claim:
A solid-state image pickup apparatus, comprising: a semiconductor substrate; a photoelectric converter to convert light energy of incident light into electrical energy and obtain a signal charge, the photoelectric converter being formed on a surface side in the semiconductor substrate; a transfer gate to read the signal charge from the photoelectric converter, the transfer gate being formed on the semiconductor substrate adjacent to the photoelectric converter; an insulating layer formed on the photoelectric converter in the semiconductor substrate; a first silicon layer formed on the insulating layer; and a pixel transistor portion to amplify and output the signal charge read by the transfer gate, the pixel transistor portion being formed on the insulating layer with the first silicon layer being an active region, wherein the thickness of the insulating layer is in the range of 50 nm to 100 nm, and the thickness of the first silicon layer is in the range of 50 nm to 100 nm.