PHOTODETECTION DEVICE AND IMAGING DEVICE
First Claim
1. A photodetection device, comprising:
- a photoelectric converter that generates charge;
a first charge transfer channel that has a first end and a second end, the first end being connected to the photoelectric converter, charge from the photoelectric converter being transferred in the first charge transfer channel in a first direction from the first end toward the second end;
a second charge transfer channel that diverges from the first charge transfer channel at a first position of the first charge transfer channel;
a third charge transfer channel that diverges from the first charge transfer channel at a second position of the first charge transfer channel, the second position being further than the first position from the first end in the first direction;
a first charge accumulator that accumulates charge transferred from the first charge transfer channel through the second charge transfer channel;
a second charge accumulator that accumulates charge transferred from the first charge transfer channel through the third charge transfer channel; and
at least one first gate electrode that switches between transfer and cutoff of charge in the second charge transfer channel, and that switches between transfer and cutoff of charge in the third charge transfer channel, whereina width of the first charge transfer channel at the first end is greater than a width of the first charge transfer channel at the second end in a plan view.
1 Assignment
0 Petitions
Accused Products
Abstract
A photodetection device includes: a photoelectric converter generating charge; a first channel having first and second ends, the first end being connected to the photoelectric converter, charge being transferred from the first end toward the second end; a second channel diverging from the first channel at a first position of the first channel; a third channel diverging from the first channel at a second position of the first channel; a first accumulator accumulating charge transferred from the first channel through the second channel; a second accumulator accumulating charge transferred from the first channel through the third channel; and at least one first gate electrode switching between transfer/cutoff of charge in the second channel, and switching between transfer/cutoff of charge in the third channel, a width of the first channel at the first end being greater than a width of the first channel at the second end in a plan view.
-
Citations
16 Claims
-
1. A photodetection device, comprising:
-
a photoelectric converter that generates charge; a first charge transfer channel that has a first end and a second end, the first end being connected to the photoelectric converter, charge from the photoelectric converter being transferred in the first charge transfer channel in a first direction from the first end toward the second end; a second charge transfer channel that diverges from the first charge transfer channel at a first position of the first charge transfer channel; a third charge transfer channel that diverges from the first charge transfer channel at a second position of the first charge transfer channel, the second position being further than the first position from the first end in the first direction; a first charge accumulator that accumulates charge transferred from the first charge transfer channel through the second charge transfer channel; a second charge accumulator that accumulates charge transferred from the first charge transfer channel through the third charge transfer channel; and at least one first gate electrode that switches between transfer and cutoff of charge in the second charge transfer channel, and that switches between transfer and cutoff of charge in the third charge transfer channel, wherein a width of the first charge transfer channel at the first end is greater than a width of the first charge transfer channel at the second end in a plan view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification