Patent ID: 9570489
Date: 2017-02-14
CPC Classifications: H01L,H04N

Claim:
1. A solid-state imaging device comprising: a first photodiode including: a second photodiode including: a gate electrode on the first principal face side of said semiconductor substrate, wherein an impurity concentration of the third second-electroconductive-type semiconductor region at a connection face between said second first-electroconductive-type semiconductor region and said third second-electroconductive-type semiconductor region is equal to or greater than an impurity concentration of the fourth second-electroconductive-type semiconductor region at a connection face between said second second-electroconductive-type semiconductor region and said fourth second-electroconductive-type semiconductor region, and wherein a potential at the connection face between said second second-electroconductive-type semiconductor region and said fourth second-electroconductive-type semiconductor region is lower than a potential at a connection face between said third second-electroconductive-type semiconductor region and said fourth second-electroconductive-type semiconductor region.