Patent ID: 9299860
Filing Date: 2016-03-29
CPC Classification: H01L

Claim Text:
1. A solid state imaging device comprising: a photoelectric conversion portion having a plurality of photosensitive regions which generate respective charges according to incidence of light and a planar shape of each of which is a substantially rectangular shape composed of two long sides and two short sides, the photosensitive regions being juxtaposed in a first direction intersecting with the long sides; a potential gradient forming portion which is arranged opposite to the plurality of photosensitive regions and which forms a potential gradient along a second direction from one of the short sides to the other of the short sides; a first charge output portion which is arranged beside the one short side and which transfers charges transferred from the respective photosensitive regions, in the first direction and outputs the charges; a second charge output portion which is arranged beside the other short side and which transfers charges transferred from the respective photosensitive regions, in the first direction and outputs the charges; a first charge drain portion which is arranged beside the one short side and which drains charges transferred from the respective photosensitive regions; and a second charge drain portion which is arranged beside the other short side and which drains charges transferred from the respective photosensitive regions, wherein the potential gradient forming portion has a first potential gradient forming region to form a potential gradient becoming lower along the second direction, and a second potential gradient forming region to form a potential gradient becoming higher along the second direction, the second potential gradient forming region being arranged next to the first potential gradient forming region in the second direction.