Patent ID: 8653620
Filing Date: 2014-02-18
Classification: H01L,H04N

Abstract:
1. A back side illumination type solid state imaging device comprising: a semiconductor substrate having a first conductivity type; a well region which is arranged on a front surface side of the semiconductor substrate and has the first conductivity type; photodiodes which are arranged in the well region and have a second conductivity type; a diffusion layer which is arranged between the photodiodes, supplies a potential to the well region, and has the first conductivity type; an overflow drain layer which is arranged on a back surface side of the semiconductor substrate and has the second conductivity type; an overflow drain electrode which extends from the front surface side of the semiconductor substrate to the overflow drain layer and supplies a bias potential to the overflow drain layer from the front surface side of the semiconductor substrate; and a wiring layer which is arranged on the front surface of the semiconductor substrate.