Semiconductor device, solid-state imaging device and electronic apparatus
First Claim
1. A semiconductor device comprising:
- a first semiconductor section including a first multilayer wiring layer at one side thereof, the first semiconductor section further including a photodiode;
a second semiconductor section including a second multilayer wiring layer at one side thereof, the first and second semiconductor sections being secured together;
a third semiconductor section including a third multilayer wiring layer at one side thereof, the second and the third semiconductor sections being secured together such that the first semiconductor section, second semiconductor section, and the third semiconductor section are stacked together;
a first contact connecting a first wiring layer of the first multilayer wiring layer and a conductive material disposed in a film of the second semiconductor section, the film of the second semiconductor section disposed at a side of the second semiconductor section that is opposite to the side at which the second multilayer wiring layer is disposed, wherein the first contact includes;
a first through hole portion penetrating a portion of the first semiconductor section in a vertical direction, wherein a conductive material embedded in the first through hole portion contacts the first wiring layer of the first multilayer wiring layer,a second through hole portion penetrating a portion of the first semiconductor section and the first multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the second through hole portion contacts the conductive material disposed in the film of the second semiconductor section, anda first connection portion including a conductive material that connects the conductive material embedded in the first through hole portion and the conductive material embedded in the second through hole portion, wherein the first connection portion is above the first multilayer wiring layer in the vertical direction; and
a second contact connecting a second wiring layer of the second multilayer wiring layer and a third wiring layer of the third multilayer wiring layer, wherein the second contact includes;
a third through hole portion penetrating a portion of the second semiconductor section in the vertical direction, wherein a conductive material embedded in the third through hole portion contacts the second wiring layer of the second multilayer wiring layer, anda fourth through hole portion penetrating a portion of the second semiconductor section, the second multilayer wiring layer, and a portion of the third multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the fourth through hole portion contacts the third wiring layer of the third multilayer wiring layer, and wherein the conductive material disposed in the film of the second semiconductor section connects the conductive material embedded in the third through hole portion and the conductive material embedded in the fourth through hole portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A semiconductor device including a first semiconductor section including a first wiring layer at one side thereof, the first semiconductor section further including a photodiode, a second semiconductor section including a second wiring layer at one side thereof, the first and second semiconductor sections being secured together, a third semiconductor section including a third wiring layer at one side thereof, the second and the third semiconductor sections being secured together such the first semiconductor section, second semiconductor section, and the third semiconductor section are stacked together, and a first conductive material electrically connecting at least two of (i) the first wiring layer, (ii) the second wiring layer, and (iii) the third wiring layer such that the electrically connected wiring layers are in electrical communication.
18 Citations
24 Claims
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1. A semiconductor device comprising:
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a first semiconductor section including a first multilayer wiring layer at one side thereof, the first semiconductor section further including a photodiode; a second semiconductor section including a second multilayer wiring layer at one side thereof, the first and second semiconductor sections being secured together; a third semiconductor section including a third multilayer wiring layer at one side thereof, the second and the third semiconductor sections being secured together such that the first semiconductor section, second semiconductor section, and the third semiconductor section are stacked together; a first contact connecting a first wiring layer of the first multilayer wiring layer and a conductive material disposed in a film of the second semiconductor section, the film of the second semiconductor section disposed at a side of the second semiconductor section that is opposite to the side at which the second multilayer wiring layer is disposed, wherein the first contact includes; a first through hole portion penetrating a portion of the first semiconductor section in a vertical direction, wherein a conductive material embedded in the first through hole portion contacts the first wiring layer of the first multilayer wiring layer, a second through hole portion penetrating a portion of the first semiconductor section and the first multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the second through hole portion contacts the conductive material disposed in the film of the second semiconductor section, and a first connection portion including a conductive material that connects the conductive material embedded in the first through hole portion and the conductive material embedded in the second through hole portion, wherein the first connection portion is above the first multilayer wiring layer in the vertical direction; and a second contact connecting a second wiring layer of the second multilayer wiring layer and a third wiring layer of the third multilayer wiring layer, wherein the second contact includes; a third through hole portion penetrating a portion of the second semiconductor section in the vertical direction, wherein a conductive material embedded in the third through hole portion contacts the second wiring layer of the second multilayer wiring layer, and a fourth through hole portion penetrating a portion of the second semiconductor section, the second multilayer wiring layer, and a portion of the third multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the fourth through hole portion contacts the third wiring layer of the third multilayer wiring layer, and wherein the conductive material disposed in the film of the second semiconductor section connects the conductive material embedded in the third through hole portion and the conductive material embedded in the fourth through hole portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A backside illumination type imaging device comprising:
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a first semiconductor section including a first multilayer wiring layer at one side thereof, the first semiconductor section further including a circuit region and a pixel region; a second semiconductor section including a second multilayer wiring layer at one side thereof, the first and second semiconductor sections being secured together; a third semiconductor section including a third multilayer wiring layer at one side thereof, the second and the third semiconductor sections being secured together such that the first semiconductor section, second semiconductor section, and the third semiconductor section are stacked together; and a first contact connecting a first wiring layer of the first multilayer wiring layer and, a conductive material disposed in a film of the second semiconductor section, the film of the second semiconductor section disposed at a side of the second semiconductor section that is opposite to the side at which the second multilayer wiring layer is disposed, wherein the first contact includes; a first through hole portion penetrating a portion of the first semiconductor section in a vertical direction, wherein a conductive material embedded in the first through hole portion contacts the first wiring layer of the first multilayer wiring layer, a second through hole portion penetrating a portion of the first semiconductor section and the first multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the second through hole portion contacts the conductive material disposed in the film of the second semiconductor section, and a first connection portion including a conductive material that connects the conductive material embedded in the first through hole portion and the conductive material embedded in the second through hole portion, wherein the first connection portion is above the first multilayer wiring layer in the vertical direction; and a second contact connecting a second wiring layer of the second multilayer wiring layer and a third wiring layer of the third multilayer wiring layer, wherein the second contact includes; a third through hole portion penetrating a portion of the second semiconductor section in the vertical direction, wherein a conductive material embedded in the third through hole portion contacts the second wiring layer of the second multilayer wiring layer, and a fourth through hole portion penetrating a portion of the second semiconductor section, the second multilayer wiring layer, and a portion of the third multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the fourth through hole portion contacts the third wiring layer of the third multilayer wiring layer, and wherein the conductive material disposed in the film of the second semiconductor section connects the conductive material embedded in the third through hole portion and the conductive material embedded in the fourth through hole portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An electronic apparatus including:
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an optical unit including at least one lens configured to receive incident light; and an imaging device configured to receive the incident light, the imaging device including; a first semiconductor section including a first multilayer wiring layer at one side thereof, the first semiconductor section further including a circuit region and a pixel region; a second semiconductor section including a second multilayer wiring layer at one side thereof, the first and second semiconductor sections being secured together; a third semiconductor section including a third multilayer wiring layer at one side thereof, the second and the third semiconductor sections being secured together such that the first semiconductor section, second semiconductor section, and the third semiconductor section are stacked together; a first contact connecting a first wiring layer of the first multilayer wiring layer and, a conductive material disposed in a film of the second semiconductor section, the film of the second semiconductor section disposed at a side of the second semiconductor section that is opposite to the side at which the second multilayer wiring layer is disposed, wherein the first contact includes; a first through hole portion penetrating a portion of the first semiconductor section in a vertical direction, wherein a conductive material embedded in the first through hole portion contacts the first wiring layer of the first multilayer wiring layer, a second through hole portion penetrating a portion of the first semiconductor section and the first multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the second through hole portion contacts the conductive material disposed in the film of the second semiconductor section, and a first connection portion including a conductive material that connects the conductive material embedded in the first through hole portion and the conductive material embedded in the second through hole portion, wherein the first connection portion is above the first multilayer wiring layer in the vertical direction; and a second contact connecting a second wiring layer of the second multilayer wiring layer and a third wiring layer of the third multilayer wiring layer, wherein the second contact includes; a third through hole portion penetrating a portion of the second semiconductor section in the vertical direction, wherein a conductive material embedded in the third through hole portion contacts the second wiring layer of the second multilayer wiring layer, and a fourth through hole portion penetrating a portion of the second semiconductor section, the second multilayer wiring layer, and a portion of the third multilayer wiring layer in the vertical direction, wherein a conductive material embedded in the fourth through hole portion contacts the third wiring layer of the third multilayer wiring layer, and wherein the conductive material disposed in the film of the second semiconductor section connects the conductive material embedded in the third through hole portion and the conductive material embedded in the fourth through hole portion. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification