Patent ID: 8809921

Claim:
A solid-state imaging apparatus comprising: a charge storage area of a second-conductivity-type between a semiconductor area of the second-conductivity-type and a first surface pinning area a first-conductivity-type, an impurity concentration of the second-conductivity-type in said semiconductor area being lower than an impurity concentration of the second-conductivity-type in said charge storage area; an overflow barrier of the second-conductivity-type between a second surface pinning area of the first-conductivity-type and a portion of a semiconductor well, an impurity concentration of the second-conductivity-type in said overflow barrier being lower than said impurity concentration of the second-conductivity-type in said semiconductor area; wherein said overflow barrier is in physical contact with a floating diffusion unit of the second-conductivity-type and said charge storage area, and wherein said second surface pinning area is in physical contact with said floating diffusion unit and said first surface pinning area.