IMAGING DEVICE AND METHOD OF DRIVING SOLID STATE IMAGING ELEMENT
First Claim
1. An imaging device, comprising:
- a solid state imaging element that has a plurality of pixels including;
a semiconductor substrate;
a pair of electrodes stacked above the semiconductor substrate; and
a photoelectric converting layer arranged between the pair of electrodes; and
a driving unit that drives the solid state imaging element;
wherein each of the plurality of the pixels further includes;
a connecting portion that is arranged in the semiconductor substrate and that is connected electrically to one of the pair of electrodes;
a potential barrier portion that is arranged adjacent to the connecting portion in the semiconductor substrate and that acts as a potential barrier against a potential of the connecting portion;
a first charge accumulating portion that is arranged adjacent to the potential barrier portion in the semiconductor substrate and in which charges generated in the photoelectric converting layer are accumulated via the connecting portion and the potential barrier portion; and
a signal output circuit that outputs a signal in response to the charges accumulated in the first charge accumulating portion, andwherein the driving unit drives the solid state imaging element so that the connecting portion and the potential barrier portion are set to have a same potential by injecting charges into the connecting portion.
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Accused Products
Abstract
An imaging device includes a solid state imaging element that includes a plurality of pixels; and a driving unit; wherein each pixel includes: a photoelectric converting element includes a pair of electrodes stacked above a semiconductor substrate and a photoelectric converting layer arranged between the electrodes; a connecting portion that is arranged in the semiconductor substrate; a potential barrier portion; a first charge accumulating portion; and a signal output circuit, and wherein the driving unit drives the solid state imaging element so that the connecting portion and the potential barrier portion are set to a same potential by injecting charges into the connecting portion.
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Citations
16 Claims
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1. An imaging device, comprising:
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a solid state imaging element that has a plurality of pixels including;
a semiconductor substrate;
a pair of electrodes stacked above the semiconductor substrate; and
a photoelectric converting layer arranged between the pair of electrodes; anda driving unit that drives the solid state imaging element; wherein each of the plurality of the pixels further includes; a connecting portion that is arranged in the semiconductor substrate and that is connected electrically to one of the pair of electrodes; a potential barrier portion that is arranged adjacent to the connecting portion in the semiconductor substrate and that acts as a potential barrier against a potential of the connecting portion; a first charge accumulating portion that is arranged adjacent to the potential barrier portion in the semiconductor substrate and in which charges generated in the photoelectric converting layer are accumulated via the connecting portion and the potential barrier portion; and a signal output circuit that outputs a signal in response to the charges accumulated in the first charge accumulating portion, and wherein the driving unit drives the solid state imaging element so that the connecting portion and the potential barrier portion are set to have a same potential by injecting charges into the connecting portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of driving a solid state imaging element that has a plurality of pixels including:
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a semiconductor substrate; a pair of electrodes stacked above the semiconductor substrate; a photoelectric converting layer arranged between the pair of electrodes; a connecting portion that is arranged in the semiconductor substrate and that is connected electrically to one of the pair of electrodes; a potential barrier portion that is arranged adjacent to the connecting portion in the semiconductor substrate and that acts as a potential barrier against a potential of the connecting portion; a first charge accumulating portion that is arranged adjacent to the potential barrier portion in the semiconductor substrate and in which charges generated in the photoelectric converting layer are accumulated via the connecting portion and the potential barrier portion; and a signal output circuit that outputs a signal in response to the charges accumulated in the first charge accumulating portion, the method comprising; driving the solid state imaging element so that the connecting portion and the potential barrier portion are set to a same potential by injecting charges into the connecting portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification