Patent ID: 8018515

Claim:
A solid-state imaging device in which a plurality of pixel portions are arranged one- or two-dimensionally, wherein the plurality of pixel portions each comprise: a buried photodiode for generating charges of an amount corresponding to the intensity of incident light; a capacitive element connected in parallel to the buried photodiode to accumulate charges generated in the buried photodiode; and a transferring transistor connected to the buried photodiode; wherein said buried photodiode includes: a first semiconductor region of first conductivity type; a second semiconductor region of second conductivity type, the second semiconductor region being formed in the first semiconductor region; a third semiconductor region of first conductivity type, the third semiconductor region being formed on the second semiconductor region; and a fourth semiconductor region of second conductivity type, the fourth semiconductor region being in contact with the second semiconductor region, the fourth semiconductor region being isolated from the third semiconductor region, wherein the transferring transistor includes: the fourth semiconductor region as a source terminal of the transferring transistor; and a fifth semiconductor region of second conductivity type as a drain terminal of the transferring transistor, and wherein the third semiconductor region and the fourth semiconductor region are formed on the second semiconductor region.