Solid-state imaging device
AssigneeKabushiki Kaisha Toshiba
InventorsNaoko UNAGAMI, Makoto Monoi, Nagataka Tanaka
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Abstract
According to one embodiment, a solid-state imaging device including a plurality of pixels two-dimensionally arranged at a preset pitch in a semiconductor substrate is provided. Each of the pixels is configured to include first and second photodiodes that photoelectrically convert incident light and store signal charges obtained by conversion, a first micro-lens that focuses light on the first photodiode, and a second micro-lens that focuses light on the second photodiode. The saturation charge amount of the second photodiode is larger than that of the first photodiode. Further, the aperture of the second micro-lens is smaller than that of the first micro-lens.
Claims20
A solid-state imaging device comprising:
- a semiconductor substrate, and
- a plurality of pixels two-dimensionally arranged at a preset pitch in the semiconductor substrate,
- wherein each of the pixels includes a first photodiode configured to photoelectrically convert incident light and store charges obtained by conversion, a second photodiode configured to photoelectrically convert incident light and store charges obtained by conversion and having a larger saturation charge amount than the first photodiode, a first micro-lens configured to focus light on the first photodiode, and a second micro-lens configured to focus light on the second photodiode and having a smaller aperture than the first micro-lens.
A solid-state imaging device comprising:
- a semiconductor substrate,
- an imaging region formed by arranging a plurality of pixels two-dimensionally arranged at a preset pitch in a row direction and column direction in the semiconductor substrate,
- a vertical shift register that is provided adjacent to one end portion of the imaging region in the row direction and supplies an image drive signal to each row of the imaging region, and
- a horizontal shift register that is provided adjacent to one end portion of the imaging region in the column direction and fetches a signal from each column of the imaging region,
- wherein each of the pixels includes a first photodiode configured to photoelectrically convert incident light and store charges obtained by conversion, a second photodiode configured to photoelectrically convert incident light and store charges obtained by conversion and having a larger saturation charge amount than the first photodiode, a first micro-lens configured to focus light on the first photodiode, and a second micro-lens configured to focus light on the second photodiode and having a smaller aperture than the first micro-lens.
Dependencies are inferred from the claim text.