	US 12,120,443 B2
	Semiconductor device and electronic device
Yoshiyuki Kurokawa, Sagamihara (JP); Munehiro Kozuma, Atsugi (JP); Takeshi Aoki, Ebina (JP); and Takuro Kanemura, Sapporo (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Appl. No. 17/793,104
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
PCT Filed Jan. 8, 2021, PCT No. PCT/IB2021/050107 § 371(c)(1), (2) Date Jul. 15, 2022, PCT Pub. No. WO2021/148897, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 2020-007624 (JP), filed on Jan. 21, 2020.
Prior Publication US 2023/0043910 A1, Feb. 9, 2023
Int. Cl. H04N 25/74 (2023.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01); H10B 12/00 (2023.01); H10K 39/32 (2023.01)

CPC H04N 25/74 (2023.01) [H10K 39/32 (2023.02); H01L 27/1207 (2013.01); H01L 27/1225 (2013.01); H01L 27/1255 (2013.01); H01L 29/78648 (2013.01); H01L 29/7869 (2013.01); H10B 12/00 (2023.02)]

11 Claims

1. A semiconductor device comprising:

a first cell, a second cell, a first circuit, a second circuit, a third circuit, a fourth circuit, a first wiring, a second wiring, and a third wiring,

wherein the first cell comprises a first capacitor,

wherein the second cell comprises a second capacitor,

wherein the third circuit comprises a sensor,

wherein the first circuit comprises a fifth circuit and a sixth circuit,

wherein the first cell is electrically connected to the first circuit through the first wiring,

wherein a first terminal of the first capacitor in the first cell is electrically connected to the third wiring,

wherein the second cell is electrically connected to the first circuit through the second wiring,

wherein a first terminal of the second capacitor in the second cell is electrically connected to the third wiring,

wherein the second circuit is electrically connected to the fourth circuit,

wherein the third circuit is electrically connected to the fourth circuit,

wherein the third wiring is electrically connected to the fourth circuit,

wherein the fourth circuit has a function of setting a state between the second circuit and the third wiring and a state between the third circuit and the third wiring,

wherein the first cell has:

a function of holding a first potential at a second terminal of the first capacitor when a first input potential is input to the third wiring;

a function of feeding a current based on the first potential between the first cell and the first wiring; and

a function of feeding a current based on a second potential between the first cell and the first wiring when the first potential held at the second terminal of the first capacitor changes to the second potential in response to a change of the first input potential of the third wiring to a second input potential,

wherein the second cell has:

a function of holding a third potential at a second terminal of the second capacitor when the first input potential is input to the third wiring;

a function of feeding a current based on the third potential between the second cell and the second wiring; and

a function of feeding a current based on a fourth potential between the second cell and the second wiring when the third potential held at the second terminal of the second capacitor changes to the fourth potential in response to a change of the first input potential of the third wiring to the second input potential,

wherein when the potential of the third wiring is the first input potential, a first current flows between the first circuit and the first wiring and a second current flows between the first circuit and the second wiring,

wherein when the potential of the third wiring is the second input potential, a third current flows between the first circuit and the first wiring and a fourth current flows between the first circuit and the second wiring,

wherein the fifth circuit has a function of feeding the first current with an amount I₁to the first wiring when the potential of the third wiring is the second input potential,

wherein the sixth circuit has a function of feeding the second current with an amount I₂to the first wiring when the potential of the third wiring is the second input potential,

wherein the first circuit has a function of obtaining an amount I₃of the third current and an amount I₄of the fourth current and generating a current with an amount I₁−I₂−I₃+I₄when the potential of the third wiring is the second input potential,

wherein the second circuit has:

a function of generating a fifth potential;

a function of generating a sixth potential based on internal data input to the second circuit; and

a function of outputting the fifth potential as the first input potential or the sixth potential as the second input potential to the fourth circuit, and

wherein the third circuit has:

a function of generating a seventh potential before the sensor obtains information;

a function of generating an eighth potential based on the information obtained by the sensor; and

a function of outputting the seventh potential as the first input potential or the eighth potential as the second input potential to the fourth circuit.