Patent ID: 7943975

Claim:
A solid-state imaging device of a pixel amplifying type, comprising a plurality of pixels, wherein each pixel includes: a photoelectric conversion unit for converting an incident light into a signal charge; an amplifying transistor for amplifying a signal generated in the photoelectric conversion unit; and a reset transistor for resetting an input portion of the amplifying transistor, wherein a first semiconductor region of a second conductivity type for accumulating the signal charge of the photoelectric conversion unit is arranged in a well of a first conductivity type on a semiconductor substrate, wherein a source or drain region, formed from a semiconductive region of the second conductivity type, of the amplifying transistor or the reset transistor of a first pixel is arranged between the first semiconductor region of the first pixel and the first semiconductor region of a second pixel adjacent to the first pixel, and is arranged within the well, wherein a second semiconductor region of the first conductivity type is arranged between the source or drain region and the first semiconductor region of the first pixel, wherein a third semiconductor region of the first conductivity type is arranged between the source or drain region and the first semiconductor region of the second pixel, wherein a fourth semiconductor region of the first conductivity type is arranged under the second semiconductor region and is arranged between the source or drain region and the first semiconductor region of the first pixel, wherein a fifth semiconductor region of the first conductivity type is arranged under the third semiconductor region, and is arranged between the source or drain region and the first semiconductor region of the second pixel, wherein the second, the third, the fourth, and the fifth semiconductor regions have impurity concentrations higher than that of the well, and wherein the source or drain region is arranged in the well, such that charges leaked from the photoelectric conversion unit of the first pixel are discharged into the source or drain region through the well.