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US 2022/0191414 A1Published application
Image sensor and imaging device
AssigneeSony Semiconductor Solutions Corporation
InventorsNaoki Kawazu, Motonobu Torii, Motohashi Yuichi, Atsushi Suzuki, Junichiro Azami
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Abstract
An imaging device having first and second pixels is described. The first pixel includes a first transfer transistor, a first reset transistor, a first amplifier transistor and a first select transistor. The second pixel includes a first photoelectric conversion element, a second transfer transistor, a second reset transistor, a second amplifier transistor and a second select transistor.
Claims20
An imaging device comprising:
- a pixel including:
- a first photoelectric conversion element;
- a first transfer transistor, wherein a first terminal of the first transfer transistor is coupled to the first photoelectric conversion element;
- a first amplifier transistor, wherein a gate of the first amplifier transistor is coupled to a second terminal of the first transfer transistor and wherein a first terminal of the first amplifier transistor is coupled to a power line;
- and
- a first reset transistor, wherein a first terminal of the first reset transistor is coupled to the second terminal of the first transfer transistor and wherein a second terminal of the first reset transistor is coupled to the power line;
- a test signal generator including:
- a second transfer transistor having a first terminal and a second terminal;
- a second amplifier transistor, wherein a gate of the second amplifier transistor is coupled to the second terminal of the second transfer transistor and wherein a first terminal of the second amplifier transistor is coupled to the power line;
- and
- a second reset transistor, wherein a first terminal of the second reset transistor is coupled to the second terminal of the second transfer transistor and wherein a second terminal of the second reset transistor is coupled to a test voltage generation circuit which is separated from the power line;
- a reset control signal line coupled to a gate of the first reset transistor in the pixel and a gate of the second reset transistor in the test signal generator;
- a vertical scanning unit coupled to the reset control signal line.
10 more elements
An imaging device comprising:
- a first chip including:
- a pixel including:
- a first photoelectric conversion element;
- a first transfer transistor, wherein a first terminal of the first transfer transistor is coupled to the first photoelectric conversion element;
- a first amplifier transistor, wherein a gate of the first amplifier transistor is coupled to a second terminal of the first transfer transistor and wherein a first terminal of the first amplifier transistor is coupled to a power line;
- and
- a first reset transistor, wherein a first terminal of the first reset transistor is coupled to the second terminal of the first transfer transistor and wherein a second terminal of the first reset transistor is coupled to the power line;
- a test signal generator including:
- a second transfer transistor having a first terminal and a second terminal;
- a second amplifier transistor, wherein a gate of the second amplifier transistor is coupled to the second terminal of the second transfer transistor and wherein a first terminal of the second amplifier transistor is coupled to the power line;
- and
- a second reset transistor, wherein a first terminal of the second reset transistor is coupled to the second terminal of the second transfer transistor and wherein a second terminal of the second reset transistor is coupled to a test voltage generation circuit which is separated from the power line;
- and
- a reset control signal line coupled to the pixel and the test signal generator;
- and
- a second chip including:
- a vertical scanning unit coupled to the reset control signal line via a first inter-chip connection terminal.
14 more elements
Dependencies are inferred from the claim text.