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US 10,256,345 B2Granted
Imaging device and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorYoshiyuki Kurokawa
Life of this patent
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Abstract
An imaging device that does not need a lens is provided. The imaging device includes a first layer, a second layer, and a third layer. The second layer is positioned between the first layer and the third layer. The first layer includes a diffraction grating. The second layer includes a photoelectric conversion element. The third layer includes a transistor including an oxide semiconductor in an active layer.
Claims15
An imaging device comprising:
- a first layer;
- a second layer;
- and
- a third layer,
- wherein the second layer is positioned between the first layer and the third layer,
- wherein the first layer comprises a diffraction film,
- wherein the second layer comprises a photoelectric conversion element, and
- wherein the third layer comprises a first transistor comprising an oxide semiconductor in a channel formation region.
5 more elements
An imaging device comprising:
- a first layer;
- a second layer;
- a third layer;
- and
- a fourth layer,
- wherein the first layer is over the second layer, the second layer is over the third layer, and the third layer is over the fourth layer,
- wherein the first layer comprises a diffraction film,
- wherein the second layer comprises a photoelectric conversion element,
- wherein the third layer comprises a first transistor comprising an oxide semiconductor in a channel formation region, and
- wherein the fourth layer comprises a second transistor comprising silicon in a channel formation region.
7 more elements
An imaging device comprising:
- a layer;
- and
- a pixel array comprising a plurality of pixel circuits arranged in a matrix,
- wherein the plurality of pixel circuits comprises a transistor and a photoelectric conversion element,
- wherein the transistor comprises an oxide semiconductor in a channel foil cation region,
- wherein the pixel array is configured such that light enters the pixel array through the layer,
- wherein the layer is configured to diffract the light, and
- wherein the pixel array is configured such that retention operation are performed simultaneously in all rows and read operation is performed row by row.
5 more elements
Dependencies are inferred from the claim text.