WO2022210917A1 - 撮像素子および撮像装置 - Google Patents
撮像素子および撮像装置 Download PDFInfo
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- WO2022210917A1 WO2022210917A1 PCT/JP2022/016113 JP2022016113W WO2022210917A1 WO 2022210917 A1 WO2022210917 A1 WO 2022210917A1 JP 2022016113 W JP2022016113 W JP 2022016113W WO 2022210917 A1 WO2022210917 A1 WO 2022210917A1
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- 238000003384 imaging method Methods 0.000 title claims abstract description 86
- 239000000758 substrate Substances 0.000 claims abstract description 62
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
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- 238000000926 separation method Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/79—Arrangements of circuitry being divided between different or multiple substrates, chips or circuit boards, e.g. stacked image sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
- H04N25/772—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14634—Assemblies, i.e. Hybrid structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14636—Interconnect structures
Definitions
- the present invention relates to an imaging device and an imaging device.
- Patent document 1 Japanese Patent Application Laid-Open No. 2006-49361
- an imaging device comprises: a first substrate having a plurality of pixel blocks each arranged in a row direction and a column direction and including at least one pixel; and a plurality of control blocks including a conversion unit for converting a signal output from a pixel into a digital signal, and a through electrode unit for outputting the signal converted into a digital signal by the conversion unit. and a second substrate.
- an imaging device includes the above imaging element.
- FIG. 4 is a diagram showing an outline of an imaging device 400;
- FIG. An example of a specific configuration of the pixel unit 110 is shown.
- An example of the circuit configuration of the pixel 112 is shown.
- An example of a more specific configuration of the control circuit section 210 is shown.
- An example of a more specific configuration of the control block 220 is shown.
- An example of a more specific configuration of the image processing unit 310 is shown.
- An example of a more specific configuration of the processing block 320 is shown.
- FIG. 3 is a diagram for explaining an example of a wiring method of the imaging element 400;
- FIG. 3 is a schematic diagram showing an arrangement relationship of a plurality of control blocks 220;
- 3 is a schematic diagram showing an arrangement relationship of a plurality of processing blocks 320;
- FIG. 10 is a diagram for explaining an example of a wiring method of the imaging element 800 using the control block 620; 6 is a schematic diagram showing an arrangement relationship of a plurality of control blocks 620; FIG. Further, an example of a specific configuration of another control block 640 is shown.
- FIG. 6 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 640;
- An example of a specific configuration of still another control block 660 is shown.
- FIG. 6 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 640; 4 is a schematic diagram showing the details of the arrangement of through electrodes 62.
- FIG. 4 is a schematic diagram showing the details of the arrangement of through electrodes 62.
- FIG. 2 is a block diagram showing a configuration example of an imaging device 500 according to an embodiment;
- the X-axis and the Y-axis are orthogonal to each other, and the Z-axis is orthogonal to the XY plane.
- the XYZ axes constitute a right-handed system.
- a direction parallel to the Z-axis may be referred to as a stacking direction of the imaging elements.
- the terms "upper” and “lower” are not limited to vertical directions in the direction of gravity. These terms refer only to relative directions in the Z-axis direction.
- the arrangement in the X-axis direction is described as a "row” and the arrangement in the Y-axis direction is described as a "column,” but the matrix direction is not limited to this.
- FIG. 1 is a diagram showing an overview of the imaging device 400.
- the imaging element 400 images a subject.
- the imaging device 400 generates image data of a captured subject.
- the imaging device 400 includes a first substrate 100 , a second substrate 200 and a third substrate 300 . As shown in FIG. 1, the first substrate 100 is laminated on the second substrate 200 . Also, the second substrate 200 is laminated on the third substrate 300 .
- the first substrate 100 has a pixel section 110 . Light is incident on the pixel unit 110 .
- the pixel unit 110 outputs pixel signals based on incident light.
- the first substrate 100 is sometimes called a pixel chip.
- the second substrate 200 has a control circuit section 210 and a peripheral circuit section 230 .
- the second substrate 200 may be called a processing circuit chip.
- the control circuit section 210 of this example is arranged at a position facing the pixel section 110 on the second substrate 200 .
- the control circuit unit 210 outputs control signals for controlling driving of the pixel unit 110 to the pixel unit 110 .
- a pixel signal output from the pixel unit 110 is also input to the control circuit unit 210 .
- the control circuit unit 210 performs signal processing on pixel signals. For example, the control circuit unit 210 performs processing for converting analog signals into digital signals. Specifically, the control circuit unit 210 performs a process of converting an input pixel signal into a digital signal.
- the control circuitry 210 may perform other signal processing. Examples of other signal processing include noise reduction processing such as analog or digital CDS (Correlated Double Sampling).
- the peripheral circuit section 230 controls driving of the control circuit section 210 .
- the peripheral circuit section 230 is arranged around the control circuit section 210 on the second substrate 200 .
- the peripheral circuit section 230 may be electrically connected to the first substrate 100 to control driving of the pixel section 110 .
- the peripheral circuit section 230 of this example is arranged along the two opposing sides of the second substrate 200, but the arrangement method of the peripheral circuit section 230 is not limited to this example.
- the third board 300 has an image processing section 310 and a peripheral circuit section 330 .
- the third substrate 300 may be called an image processing chip.
- the peripheral circuit section 330 of this example is arranged along two sides facing each other of the third substrate 300, but the arrangement method of the peripheral circuit section 330 is not limited to this example.
- the image processing section 310 of this example is arranged at a position facing the control circuit section 210 on the third substrate 300 .
- the control circuit unit 210 performs image processing on the pixel signals output by the control circuit unit 210 .
- the structure of the imaging element 400 may be of a backside illumination type or a frontside illumination type.
- FIG. 2 shows an example of a specific configuration of the pixel unit 110.
- FIG. In this example, an enlarged view of a pixel section 110 and a pixel block 120 provided in the pixel section 110 is shown.
- the pixel section 110 has a plurality of pixel blocks 120 arranged side by side along the row and column directions.
- the pixel unit 110 of this example has M ⁇ N (M and N are natural numbers) pixel blocks 120 . This example illustrates the case where M is equal to N, but M and N may be different.
- a pixel block 120 has at least one pixel 112 .
- the pixel block 120 of this example has m ⁇ n (m and n are natural numbers) pixels 112 .
- pixel block 120 has 16 ⁇ 16 pixels 112 .
- the number of pixels 112 corresponding to the pixel block 120 is not limited to this. This example illustrates the case where m is equal to n, but m may be different from n.
- a pixel block 120 has a plurality of pixels 112 connected to a common control line in the row direction.
- each pixel 112 of pixel block 120 is connected to a common control line so as to be set to the same exposure time.
- n pixels 112 arranged in the row direction are connected by a common control line.
- a plurality of pixel blocks 120 may be set to different exposure times. That is, each pixel 112 of the pixel block 120 has the same exposure time, but other pixel blocks 120 may have different exposure times. For example, when the pixels 112 of the pixel block 120 are connected by a common control line in the row direction, the pixels 112 of the other pixel blocks 120 are commonly connected by different control lines.
- the pixel block 120 is arranged corresponding to a control block 220 which will be described later. In this embodiment, one pixel block 120 is arranged for one control block 220 .
- the pixel 112 has a photoelectric conversion function of converting light into charge.
- the pixels 112 accumulate photoelectrically converted charges.
- the m pixels 112 are arranged side by side along the column direction and connected to a common signal line 122 .
- the m pixels 112 are arranged in n columns in the row direction in the pixel block 120 .
- the pixel block 120 is a collection of multiple pixels 112 connected by a common control line. Also, the pixel block 120 can be said to be the minimum circuit unit of a plurality of pixels 112 for which the same exposure time is set.
- FIG. 3 shows an example of the circuit configuration of the pixel 112.
- FIG. The pixel 112 includes a photoelectric conversion unit 104 , a transfer unit 123 , a discharge unit 124 , a reset unit 126 and a pixel output unit 127 .
- the pixel output section 127 has an amplification section 128 and a selection section 129 .
- the transfer section 123, the discharge section 124, the reset section 126, the amplification section 128, and the selection section 129 are described as N-channel FETs, but the type of transistor is not limited to this.
- the photoelectric conversion unit 104 has a photoelectric conversion function of converting light into charge.
- the photoelectric conversion unit 104 accumulates photoelectrically converted charges.
- the photoelectric conversion unit 104 is, for example, a photodiode.
- the transfer unit 123 transfers the charges accumulated in the photoelectric conversion unit 104 to the storage unit 125 .
- the transfer unit 123 is an example of a transfer gate that transfers charges of the photoelectric conversion unit 104 .
- the transfer section 123 as a gate, the photoelectric conversion section 104 as a source, and the storage section 125 as a drain constitute a so-called transfer transistor.
- a gate terminal of the transfer unit 123 is connected to a local transfer control line for each pixel block 120 for inputting the control signal ⁇ TX1.
- the discharge unit 124 discharges the charge accumulated in the photoelectric conversion unit 104 to the power supply wiring supplied with the power supply voltage VDD.
- a gate terminal of the discharge section 124 is connected to a local discharge control line for each pixel block 120 for inputting the discharge control signal ⁇ TX2.
- the discharge unit 124 discharges the charge of the photoelectric conversion unit 104 to the power supply wiring to which the power supply voltage VDD is supplied. may be discharged.
- the charge from the photoelectric conversion unit 104 is transferred to the storage unit 125 by the transfer unit 123 .
- the accumulation unit 125 is an example of floating diffusion (FD).
- the reset unit 126 discharges the charge of the storage unit 125 to the power supply wiring supplied with the predetermined power supply voltage VDD.
- a gate terminal of the reset section 126 is connected to a global reset control line over a plurality of pixel blocks 120 for inputting a reset control signal ⁇ RST.
- the pixel output section 127 outputs a signal based on the potential of the accumulation section 125 to the signal line 122 .
- the pixel output section 127 has an amplification section 128 and a selection section 129 .
- the amplifying unit 128 has a gate terminal connected to the storage unit 125 , a drain terminal connected to a power supply line supplied with the power supply voltage VDD, and a source terminal connected to the drain terminal of the selection unit 129 .
- the selection unit 129 controls electrical connections between the pixels 112 and the signal lines 122 .
- a pixel signal is output from the pixel 112 to the signal line 122 .
- a gate terminal of the selection unit 129 is connected to a global selection control line over a plurality of pixel blocks 120 for inputting the selection control signal ⁇ SEL.
- a source terminal of the selector 129 is connected to the load current source 121 .
- the load current source 121 supplies current to the signal line 122 .
- the load current source 121 may be provided on the first substrate 100 or may be provided on the second substrate 200 .
- any of the charge accumulated in the photoelectric conversion unit 104, the charge transferred to the accumulation unit 125, and the signal based on the potential of the accumulation unit 125, or these may be collectively referred to as a pixel signal.
- the pixel 112 includes at least one photoelectric conversion unit 104 and a pixel output unit 127 or the like as a reading unit that reads out image signals from the at least one photoelectric conversion unit 104 to the signal line 122 . It can be said that the pixel 112 is the minimum unit of a circuit that outputs pixel signals forming an image to the signal line 122 .
- FIG. 4 shows an example of a more specific configuration of the control circuit section 210.
- the control circuit section 210 has control blocks 220 arranged side by side along the row direction and the column direction.
- the control circuit section 210 of this example has M ⁇ N control blocks 220 .
- the control blocks 220 are arranged at positions corresponding to the pixel blocks 120, respectively.
- the control block 220 and the pixel block 120 are arranged to overlap each other when viewed from the stacking direction of the first substrate 100 and the second substrate 200 .
- the areas of the control block 220 and the pixel block 120 may be substantially the same including margins between adjacent blocks.
- FIG. 5 shows an example of a more specific configuration of the control block 220.
- the control block 220 controls driving of the corresponding pixel block 120 .
- control block 220 controls the exposure time of pixel block 120 .
- the control block 220 has a processing circuit such as an AD converter, and processes the signal output from the pixel block 120 .
- the control block 220 converts the analog pixel signal output from the corresponding pixel block 120 into a digital signal.
- the control block 220 of this example includes the pixel drive section 20 , the junction section 30 , the conversion section 40 , the signal output section 50 , the local I/O, and the through electrode region 60 .
- the pixel drive unit 20 controls exposure of the plurality of pixels 112 and drives the plurality of pixels 112 .
- Pixel driver 20 generates a signal for controlling the exposure time of pixel 112 .
- the pixel driving section 20 controls the exposure time for each pixel block 120 by adjusting at least one of the start timing and the end timing of exposure.
- the pixel drive section 20 is electrically connected to the plurality of pixels 112 .
- the pixel driving section 20 selects and drives an arbitrary pixel 112 from the plurality of pixels 112 .
- the pixel driving section 20 is arranged at a position corresponding to the m pixels 112 arranged in the column direction. Since the imaging device 400 can set the exposure time for each pixel block 120 according to the intensity of incident light, the dynamic range can be expanded.
- the bonding section 30 bonds the first substrate 100 and the second substrate 200 together.
- the junction section 30 inputs the pixel signal input from the first substrate 100 to the signal conversion section 40 .
- the junction section 30 is provided corresponding to n pixels 112 arranged in the row direction, and inputs pixel signals to the signal conversion section 40 for each column.
- the conversion unit 40 digitally converts the analog signal output by the pixel unit 110 .
- the conversion unit 40 of this example converts an analog pixel signal into a digital signal.
- the conversion unit 40 sequentially digital-converts the analog signals from the m pixels 112 arranged in the column direction.
- the conversion unit 40 parallelly converts the analog signals from the pixels 112 arranged in n columns in the row direction into digital signals. This can be said to be a so-called column ADC method for one pixel block 120 .
- the signal output unit 50 receives the digital signal from the conversion unit 40 .
- the signal output section 50 temporarily stores the digital signal.
- the signal output unit 50 may have a latch circuit for storing digital signals.
- the local I/O 70 is an interface that controls signal input/output of the control block 220 .
- the local I/O 70 outputs digital pixel signals temporarily stored in the signal output section 50 to the image processing section 310 through the through electrodes 62, which will be described later.
- the through electrode region 60 has a through electrode 62 and its prohibited area 61 .
- the through electrode 62 is also called TSV.
- the through electrode 62 is electrically connected to the image processing section 310 of the third substrate 300 and forms part of a path for outputting signals to the image processing section 310 .
- the prohibited area 61 is provided adjacent to the through electrode 62 and is an area in which elements (for example, transistors) other than the through electrode 62 are not arranged.
- the region in which the through electrode 62 is provided is sometimes called a first region, and the prohibited region 61 is sometimes called a second region.
- a thick line in the drawing indicates the well separation band 72 .
- the well isolation band 72 is provided to electrically separate adjacent circuits, such as different voltages, from each other.
- a well isolation band 72 may be provided between the circuit handling analog signals and the circuit handling digital signals.
- the pixel drive section 20, junction section 30 and conversion section 40 mainly handle analog signals
- the signal output section 50, local I/O 70 and through electrode region 60 mainly handle digital signals.
- the pixel driving section 20 is arranged vertically from the top side to the bottom side along the left side.
- the junction section 30 and the conversion section 40 are arranged in order from the top side to the bottom with the well separation band 72 interposed therebetween.
- a signal output section 50 is arranged below the conversion section 40 with a well isolation band 72 interposed therebetween, and a local I/O 70 and a through electrode region 60 are arranged below and to the right of the signal output section 50 .
- the through electrode 62 of the through electrode area 60 is arranged in the lower right corner of the control block 220 and is covered with the forbidden area 61 on the top and left.
- one control block may be provided for N pixel blocks 120 (N is a natural number equal to or greater than 2).
- the N pixel blocks 120 corresponding to one pixel block are sometimes called a pixel block group.
- one control block 220 may be provided with two pixel blocks 120 arranged side by side in the column direction as one pixel block group. In this case, the control block 220 may control the exposure time for each pixel block 120 .
- control block 220 can be said to be the minimum unit of a circuit electrically connected to at least one pixel block 120 and controlling the pixels 112 of the at least one pixel block 120 .
- FIG. 6 shows an example of a more specific configuration of the image processing unit 310.
- the image processing unit 310 has processing blocks 320 arranged side by side along the row direction and the column direction.
- the image processing unit 310 of this example has M ⁇ N processing blocks 320 .
- the processing blocks 320 are arranged at positions corresponding to the control blocks 220, respectively.
- the processing block 320 and the control block 220 are arranged at positions where the second substrate 200 and the third substrate 300 are overlapped when viewed in the stacking direction.
- the areas of the processing block 320 and the control block 220 may be substantially the same including margins between adjacent blocks.
- FIG. 7 shows an example of a more specific configuration of the processing block 320.
- the processing block 320 image-processes the pixel signal digitally converted by the corresponding control block 220 .
- the processing block 320 performs image processing such as data interpolation and compression on the pixel signals output from the control block 220 .
- image processing such as compression reduces the data amount of pixel signals output to the through electrodes 62 .
- the processing block 320 of this example includes a local I/O 370 , a through electrode region 360 , a signal input section 322 , a processing section 324 and a signal output section 326 .
- the local I/O 370 is an interface that controls the signal input/output of the processing block 320 concerned.
- the local I/O 370 inputs digital pixel signals from the control block 220 through a through electrode 362, which will be described later.
- the through electrode region 360 has a through electrode 362 and a prohibited region 361 thereof.
- the penetrating electrode region 360, the penetrating electrode 362, and the prohibited region 361 are the same as the penetrating electrode region 60, the penetrating electrode 62, and the prohibited region 61 of the control block 220, so the description thereof is omitted.
- the signal input unit 322 receives digital signals from the control block 220 via the through electrodes 62 and 362 .
- the signal input section 322 temporarily stores a digital signal.
- the signal input section 322 may have a latch circuit for storing digital signals.
- the processing unit 324 performs image processing on the digital signal temporarily stored in the signal input unit 322 .
- the processing unit 324 performs image processing such as data interpolation and compression on the pixel signals output from the control block 220 and stored in the signal input unit 322 .
- the processing unit 324 outputs the image-processed signal to the signal output unit 326 .
- the signal output unit 326 receives the signal from the processing unit 324 and temporarily stores it.
- the signal output section 326 may have a latch circuit for storing the digital signal.
- the signal output unit 326 further outputs the temporarily stored signal to the outside of the processing block 320 .
- the through electrodes 362 and the prohibited areas 361 are provided at positions corresponding to the through electrodes 362 and the prohibited areas 361 of the corresponding control block 220 .
- the through electrodes 62 and 362 are arranged at positions where the second substrate 200 and the third substrate 300 overlap when viewed in the stacking direction.
- the prohibited areas 61 and 361 are arranged at positions where the second substrate 200 and the third substrate 300 overlap when viewed in the stacking direction.
- the through electrode regions 60 and 360 are arranged at positions where the second substrate 200 and the third substrate 300 overlap each other when viewed from the stacking direction.
- the signal input section 322 and the local I/O 370 are also arranged at positions corresponding to the signal output section 50 and the local I/O 70 of the corresponding control block 220 . However, they do not have to be arranged at corresponding positions.
- FIG. 8 is a diagram for explaining an example of a wiring method for the imaging element 400.
- the peripheral circuit section 230 of the second substrate 200 has a global driving section 234 and an ADC setting section 236 .
- the global drive unit 234 is connected to reset control lines 143 and selection control lines 145 that output signals to the respective pixel blocks 120 .
- the global driving section 234 supplies a reset control signal ⁇ RST to the plurality of pixel blocks 120 through the reset control line 143 and supplies a selection control signal ⁇ SEL through the selection control line 145 .
- the global driver 234 supplies a transfer selection control signal ⁇ TXSEL to the plurality of control blocks 220 via the transfer selection control line 147 .
- a transfer selection control signal ⁇ TXSEL is supplied from the global driver 234 to the control block 220 in order to control the exposure time of each pixel block 120 .
- the control block 220 supplied with the transfer selection control signal ⁇ TXSEL outputs the transfer selection control signal ⁇ TXSEL to the corresponding pixel block 120 .
- the pixel block 120 determines whether to input the transfer selection control signal ⁇ TXSEL to the pixels 112 as the transfer control signal ⁇ TX1 or the discharge control signal ⁇ TX2. Accordingly, the input of the transfer control signal ⁇ TX1 or the discharge control signal ⁇ TX2 to the pixel 112 is skipped.
- the control block 220 extends the exposure time by skipping the transfer control signal ⁇ TX1. Further, when the transfer control signal ⁇ TX1 determines the exposure start time, the control block 220 can shorten the exposure time by skipping the transfer control signal ⁇ TX1. Thus, the exposure time of the pixel block 120 can be adjusted by the transfer selection control signal ⁇ TXSEL. The same is true when the discharge control signal ⁇ TX2 determines the start time or end time of exposure.
- the reset control line 143 , the selection control line 145 and the transfer selection control line 147 are globally wired, that is, provided commonly to the plurality of pixel blocks 120 .
- the reset control line 143, the selection control line 145, and the transfer selection control line 147 of this example are wired across the pixel section 110 in the row direction.
- the reset control line 143, the selection control line 145, and the transfer selection control line 147 may be wired across the pixel section 110 in the column direction.
- the reset control line 143 is connected to the gate terminal of the reset section 126 of the pixel block 120 and supplies the reset control signal ⁇ RST.
- the selection control line 145 is connected to the gate terminal of the selection section 129 of the pixel block 120 and supplies the selection control signal ⁇ SEL.
- the transfer selection control line 147 is connected to each of the plurality of control blocks 220 and supplies the transfer selection control signal ⁇ TXSEL to the pixel driving section 20 .
- the global driving unit 234 in this example outputs the transfer selection control signal ⁇ TXSEL from the second substrate 200 to the first substrate 100 , but does not supply the transfer selection control signal ⁇ TXSEL to the first substrate 100 but to the control block 220 .
- ⁇ TXSEL may be output.
- the transfer selection control line 147 is provided on the second substrate 200 .
- the ADC setting section 236 is connected to the conversion sections 40 of the plurality of control blocks 220 by a common signal line 237 . It can be said that the signal line 237 is also a global signal line.
- the ADC setting section 236 sets gain, offset, settling time, resolution, and the like in the conversion section 40 .
- the transfer control line 141 and the discharge control line 142 which are local control lines from the pixel driving section 20 of the control block 220 are connected to the pixel block 120 .
- the transfer control line 141 of this example is connected to the gate terminal of the transfer section 123 provided in the pixel block 120 .
- the transfer control line 141 supplies the transfer control signal ⁇ TX1 output from the pixel drive section 20 to the pixel block 120 .
- the discharge control line 142 in this example is connected to the gate terminal of the discharge section 124 provided in the pixel block 120 .
- the discharge control line 142 supplies the pixel block 120 with the discharge control signal ⁇ TX2 output from the pixel driving section 20 .
- the joint 30 is connected to the signal line 122 and the power line 130 .
- Junction 30 is connected to a ground line 132 set to a reference potential VGND.
- the junction section 30 outputs the pixel signal to the corresponding conversion section 40 .
- n conversion units 40 are provided in the row direction.
- the ground line 132 is set to a predetermined reference potential VGND.
- the ground line 132 of this example is wired across the first substrate 100 in the row direction.
- a plurality of bumps 152 are provided on the bonding surfaces where the first substrate 100 and the second substrate 200 are bonded to each other.
- the bumps 152 of the first substrate 100 are aligned with the bumps 152 of the second substrate 200 .
- the plurality of bumps 152 facing each other are bonded and electrically connected by pressurizing the first substrate 100 and the second substrate 200 or the like.
- the imaging device 400 of this example controls the exposure time for each pixel block 120 by changing the timing of at least one of the transfer section 123 and the discharge section 124 using local control lines. By combining local control lines and global control lines, the imaging device 400 can realize exposure time control with fewer control lines.
- the signal output section 50 of the control block 220 is connected to the signal input section 322 of the corresponding processing block 320 by the through electrodes 62 and 362 . This allows signals to be sent and received between the control block 220 and the processing block 320 .
- a peripheral circuit section 330 arranged on the third substrate 300 is connected to a plurality of processing blocks 320 by global signal lines 352 .
- the peripheral circuit unit 330 reads, for example, image-processed pixel signals from each of the plurality of processing blocks 320 . Further, the peripheral circuit section 330 outputs the read pixel signals to the I/O section 160 of the first substrate 100 via the signal line 354 , the through electrodes 364 and 64 , the signal line 238 , the bumps 152 and the signal line 162 .
- the second substrate 200 and the third substrate 300 are electrically connected by through electrodes 62 , 64 , 362 and 364 .
- the joint may be physically reinforced.
- FIG. 9 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 220.
- FIG. The example of FIG. 9 shows four control blocks 220a, 220b, 220c, and 220d adjacent to each other.
- through electrodes 62a, 62b, 62c and 62d are arranged in the center of the four control blocks 220a, 220b, 220c and 220d.
- the prohibited areas 61a, 61b, 61c and 61d are arranged so as to surround the through electrodes 62a, 62b, 62c and 62d.
- the through electrode regions of the four control blocks 220a, 220b, 220c, and 220d are adjacent to each other. According to this arrangement, the through electrode area can be made smaller as a whole compared to the case where the through electrodes are arranged apart from each other.
- the circuits of the control blocks 220a and 220b adjacent in the X direction are arranged symmetrically.
- the conversion section 40a of the control block 220a and the conversion section 40b of the control block 220b adjacent to the control block 220a in the X direction are adjacent in the X direction.
- the circuits of the control blocks 220a and 220c adjacent in the Y direction are arranged vertically symmetrically.
- the through electrode region of the control block 220a (that is, the through electrode 62a and the forbidden region 61a) and the through electrode region of the control block 220c that is adjacent to the control block 220a in the Y direction (that is, the through electrode 62c and the forbidden region 61c) are In the Y direction, it is arranged between the conversion section 40a of the control block 220a and the conversion section 40c of the control block 220c.
- the arrangement of the circuit is symmetrical, and wiring in the circuit, the direction of signal flow, the order of input and output, and the like need not be symmetrical.
- circuits having similar functions are adjacent to each other between adjacent control blocks 220, it is possible to omit the well separation band and improve the area efficiency.
- control blocks 220a, 220b, 220c, and 220d are repeatedly arranged in the same arrangement in the X direction and the Y direction.
- This repeating unit is sometimes called a unit circuit group.
- control blocks 220 that are adjacent across repeating units, that is, between unit circuit groups through electrode regions 60 are separated from each other by regions where other elements are provided.
- a control block having the same arrangement as that of control block 220a is adjacent to the +X side of control block 220b.
- the through electrode regions are not adjacent to each other between them, and there are regions in which other elements such as local I/O and pixel driving units are provided.
- FIG. 10 is a schematic diagram showing the arrangement relationship of a plurality of processing blocks 320.
- FIG. 10 In the example of FIG. 10, four adjacent processing blocks 320a, 320b, 320c and 320d are shown corresponding to the four adjacent control blocks 220a, 220b, 220c and 220d of FIG.
- through electrodes 362a, 362b, 362c and 362d are arranged in the center of the four processing blocks 320a, 320b, 320c and 320d.
- the prohibited areas 61a, 61b, 61c and 61d are arranged so as to surround the through electrodes 62a, 62b, 62c and 62d.
- the through electrode regions of the four processing blocks 320a, 320b, 320c, and 320d are adjacent to each other. According to this arrangement, the through electrode area can be made smaller as a whole compared to the case where the through electrodes are arranged apart from each other.
- the circuits of the processing blocks 320a and 320b adjacent in the X direction are arranged symmetrically.
- the processing section 324a of the processing block 320a and the processing section 324b of the processing block 320b adjacent to the processing block 320a in the X direction are adjacent in the X direction.
- the circuits of the processing blocks 320a and 320c adjacent in the Y direction are arranged vertically symmetrically.
- the arrangement of the circuit is symmetrical, and wiring in the circuit, the direction of signal flow, the order of input and output, and the like need not be symmetrical.
- the processing blocks 320 are repeatedly arranged in the same arrangement in the X direction and the Y direction.
- FIG. 11 shows an example of a specific configuration of another control block 620.
- FIG. In the control block 620 the same reference numerals are given to the same components as in the control block 220 of FIG. 5, and the description thereof will be omitted.
- a control circuit 80 is provided in the control block 620 instead of the pixel driving section 20 of the control block 220 .
- the control circuit 80 mainly controls the control block 620 .
- a function similar to the local I/O 70 of the control block 220 is also provided in the area of the control circuit 80 .
- the control circuit 80 is arranged vertically from the upper side along the left side.
- the junction portion 30 and the conversion portion 40 are arranged in order from the upper side to the -Y side with the well isolation band 72 interposed therebetween.
- a signal output section 50 is arranged below the conversion section 40 with a well isolation band 72 interposed therebetween.
- a through electrode region 60 is arranged along the lower side from the right side to the left side below the signal output section 50 and the control circuit 80 . be done.
- the through electrode 62 of the through electrode area 60 is arranged along the lower side of the control block 620 and is covered with the prohibited area 61 .
- FIG. 12 is a diagram for explaining an example of a wiring method for the imaging element 800 using the control block 620.
- FIG. 12 the same reference numerals are given to the same configurations as in FIG. 8, and the description thereof will be omitted.
- the peripheral circuit section 603 has a global drive section 634.
- the global driver 634 supplies the transfer control signal ⁇ TX1 and the discharge control signal ⁇ TX2 to the pixel block 120 through the transfer control line 141 and the discharge control line 142 in addition to the function of the global drive unit 234 in FIG.
- the transfer control line 141 and the discharge control line 142 are global wirings commonly connected to the plurality of pixel blocks 120 . Therefore, exposure control is performed globally for the entire pixel unit 110 .
- the peripheral circuit section 603 does not have the ADC setting section 236 of the peripheral circuit section 230. Instead, a control circuit 80 is provided for each of the control blocks 620 .
- This control circuit 80 also has the function of the ADC setting section 236 .
- FIG. 13 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 620.
- FIG. The example of FIG. 13 shows four control blocks 620a, 620b, 620c, and 620d adjacent to each other.
- through electrodes 62a, 62b, 62c and 62d are arranged in the center of all four control blocks 620a, 620b, 620c and 620d.
- the prohibited areas 61a, 61b, 61c and 61d are arranged so as to surround the through electrodes 62a, 62b, 62c and 62d.
- the through electrode regions of the four control blocks 620a, 620b, 620c, and 620d are adjacent to each other. According to this arrangement, the through electrode area can be made smaller as a whole compared to the case where the through electrodes are arranged apart from each other.
- the circuits of the control blocks 620a and 620b adjacent in the X direction are arranged symmetrically.
- the circuits of the control blocks 620a and 620c adjacent in the Y direction are arranged vertically symmetrically.
- the arrangement of the circuit is symmetrical, and wiring in the circuit, the direction of signal flow, the order of input and output, and the like need not be symmetrical.
- the area efficiency can be improved by omitting the well isolation band.
- the control circuit section 610 is configured by repeatedly disposing the control blocks 620 in the same arrangement in the X direction and the Y direction using these four control blocks 620a, 620b, 620c, and 620d as units.
- the through electrode regions 60 are adjacent to each other between the control blocks 620 that are adjacent in the X direction across the repeating unit.
- a control block having the same layout as control block 620a is adjacent to the right side of control block 620b.
- the through electrode regions are also adjacent to each other between them. Thereby, the area efficiency can be further improved.
- FIG. 14 shows an example of a specific configuration of yet another control block 640.
- FIG. 14 shows an example of a specific configuration of yet another control block 640.
- the control block 640 differs from the control block 620 in that the control circuit 80 extends from the upper side to the lower side of the control block 640 .
- FIG. 15 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 640.
- FIG. The example of FIG. 15 shows four control blocks 640a, 640b, 640c, and 640d adjacent to each other.
- through electrodes 62a, 62b, 62c and 62d are arranged in the center of all four control blocks 640a, 640b, 640c and 640d.
- the prohibited areas 61a, 61b, 61c and 61d are arranged so as to surround the through electrodes 62a, 62b, 62c and 62d.
- the through electrode regions of the four control blocks 640a, 640b, 640c, and 640d are adjacent to each other. According to this arrangement, the through electrode area can be made smaller as a whole compared to the case where the through electrodes are arranged apart from each other.
- the circuits of the control blocks 640a and 640b adjacent in the X direction are arranged symmetrically to form the control circuit section 610.
- the circuits of the control blocks 640a and 640c adjacent in the Y direction are arranged vertically symmetrically.
- the arrangement of the circuit is symmetrical, and wiring in the circuit, the direction of signal flow, the order of input and output, and the like need not be symmetrical.
- the area efficiency can be improved by omitting the well isolation band.
- control block 640 is repeatedly arranged in the same arrangement in the X direction and the Y direction to form the control circuit section 630. Between the control blocks 640 adjacent across the repeating unit, the through electrode regions 60 are separated from each other by the control circuit 80 . On the other hand, the control circuits 80 of four control blocks 640 vertically adjacent to each other are adjacent to each other. Therefore, it can be said that the degree of freedom in designing the control circuit 80 is increased.
- FIG. 16 shows an example of a specific configuration of yet another control block 660.
- FIG. In the control block 660 the same reference numerals are given to the same components as in the control block 620 of FIG. 11, and the description thereof will be omitted.
- the junction portion 30, the conversion portion 40, the well isolation band 72, the control circuit 80, and the through electrode region 60 are arranged in order from the upper side to the lower side, and extend from the left side to the right side.
- the through electrode 62 of the through electrode region 60 extends from the left side to the right side on the lower side of the control block 620 and is covered with the prohibited area 61 .
- FIG. 17 is a schematic diagram showing the arrangement relationship of a plurality of control blocks 640.
- FIG. The example of FIG. 17 shows four control blocks 660a, 660b, 660c, and 660d adjacent to each other.
- through electrodes 62a, 62b, 62c and 62d are arranged in the center of all four control blocks 660a, 660b, 660c and 660d.
- the prohibited areas 61a, 61b, 61c and 61d are arranged so as to surround the through electrodes 62a, 62b, 62c and 62d.
- the through electrode regions of the four control blocks 660a, 660b, 660c, and 660d are adjacent to each other. According to this arrangement, the through electrode area can be made smaller as a whole compared to the case where the through electrodes are arranged apart from each other.
- control blocks 660a and 660c adjacent in the Y direction are arranged vertically symmetrically. However, it is sufficient that the arrangement of the circuit is symmetrical, and wiring in the circuit, the direction of signal flow, the order of input and output, and the like need not be symmetrical. As a result, since circuits having similar functions are adjacent to each other between adjacent control blocks 660, the area efficiency can be improved by omitting the well isolation band.
- two control blocks 660a and 660c adjacent in the Y direction are used as units, and the control blocks 660 are repeatedly arranged in the same arrangement in the X direction and the Y direction to form the control circuit section 650. . That is, two control blocks 660a and 660c adjacent in the Y direction form a unit circuit group.
- the through electrode regions 60 are adjacent to each other between the control blocks 660 that are adjacent in the X direction across the repeating unit.
- the through electrode regions are adjacent to each other even between the control blocks 660a and 620b. Thereby, the area efficiency can be further improved.
- FIG. 18 is a schematic diagram showing the details of the arrangement of the through electrodes 62.
- FIG. 18 shows the arrangement of the through electrodes 62 in the arrangement relationship of the plurality of control blocks 220 in FIG.
- each of the control blocks 220a, 220b, 220c and 220d has one through electrode 62a, 62b, 62c and 62d.
- the through electrode 62d has an in-plane signal line 65d and a connection portion 66d for connecting the signal line 65d to another circuit. The same applies to other through electrodes 62a, 62b, and 62c.
- the through electrode 62a is used to transmit and receive a signal of the corresponding control block 220a to and from the image processing section 310.
- through electrodes 62 b , 62 c , 62 d are used to transmit and receive signals of corresponding control blocks 220 b , 220 c , 220 d to and from image processing section 310 . This allows signals from the control blocks 220a, 220b, 220c, 220d to be sent to and received from the image processor 310 simultaneously and/or independently of each other.
- the through electrodes 62a, 62b, 62c, 62d may be shared by the control blocks 220a, 220b, 220c, 220d.
- the control blocks 220b, 220c and 220d may use the through electrodes 62a, 62b, 62c and 62d in a time division manner.
- each of the control blocks 220a, 220b, 220c, and 220d may have two or more through electrodes 62a, 62b, 62c, and 62d.
- FIG. 19 is a schematic diagram showing the details of the arrangement of the through electrodes 62.
- FIG. 19 shows the arrangement of the through electrodes 62 in the arrangement relationship of the plurality of control blocks 220 in FIG.
- one through electrode 62 is provided for four control blocks 220a, 220b, 220c, and 220d. That is, one through electrode 62 is provided for each unit circuit group.
- control blocks 220a, 220b, 220c, and 220d may use the through electrodes 62 in a time division manner. According to the example of FIG. 19, it is sufficient to dispose the through electrodes in a number smaller than the number of control blocks, so that the through electrode region 60 can be made smaller and the area efficiency can be further improved. Note that the number of shared through electrodes 62 is not limited to one, and may be two or three.
- the discharge section 124 of the pixel 112 may be omitted.
- the transfer unit 123 may also be omitted, but in that case the storage unit 125 will not have a floating diffusion function, and the storage unit 125 and the pixel output unit 127 may be shared with other pixels.
- the pixel 112 may be configured with a plurality of photoelectric conversion units 104 and first transfer units 123 . Adjacent means being arranged side by side, and includes cases where they are in contact with each other and cases where they are not necessarily in contact.
- FIG. 20 is a block diagram showing a configuration example of the imaging device 500 according to the embodiment.
- the imaging apparatus 500 includes an imaging device 400, a system control unit 501, a driving unit 502, a photometry unit 503, a work memory 504, a recording unit 505, a display unit 506, a driving unit 514, and an imaging lens 520.
- an imaging device 400 is provided will be described, but an imaging device 800 may be provided instead.
- the photographing lens 520 guides the subject light flux incident along the optical axis OA to the imaging device 400 .
- the photographing lens 520 is composed of a plurality of optical lens groups, and forms an image of subject light flux from a scene in the vicinity of its focal plane.
- the imaging lens 520 may be an interchangeable lens that can be attached to and detached from the imaging device 500 . Note that FIG. 20 represents the photographing lens 520 by a single virtual lens arranged near the pupil.
- the drive unit 514 drives the photographing lens 520 .
- the drive unit 514 moves the optical lens group of the taking lens 520 to change the focus position.
- the driving unit 514 may drive the iris diaphragm in the photographing lens 520 to control the light amount of the subject light flux incident on the imaging device 400 .
- the drive unit 502 has a control circuit that executes charge accumulation control such as timing control and area control of the imaging element 400 according to instructions from the system control unit 501 . Further, the operation unit 508 receives instructions from the photographer using a release button or the like.
- the imaging device 400 transfers the pixel signal to the image processing section 511 of the system control section 501 .
- the image processing unit 511 generates image data by performing various image processing using the work memory 504 as a workspace. For example, when generating image data in the JPEG file format, compression processing is executed after a color video signal is generated from the signal obtained in the Bayer array.
- the generated image data is recorded in the recording unit 505, converted into a display signal, and displayed on the display unit 506 for a preset time.
- the photometry unit 503 detects the luminance distribution of the scene prior to a series of shooting sequences for generating image data.
- the photometry unit 503 includes, for example, an AE sensor with approximately one million pixels.
- a calculation unit 512 of the system control unit 501 receives the output of the photometry unit 503 and calculates the brightness for each area of the scene.
- the calculation unit 512 determines the shutter speed, aperture value, and ISO sensitivity according to the calculated luminance distribution.
- the photometry unit 503 may also be used by the image sensor 400 .
- the calculation unit 512 also executes various calculations for operating the imaging device 500 .
- the drive unit 502 may be partially or wholly mounted on the imaging device 400 .
- a part of the system control unit 501 may be mounted on the imaging device 400 .
- the imaging element 800 may be used instead of the imaging element 400 .
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Abstract
Description
特許文献1 特開2006-49361号公報
Claims (24)
- 行方向と列方向とに並んで配置され、少なくとも1つの画素を含む複数の画素ブロックを有する第1基板と、
前記行方向と前記列方向とに並んで配置され、前記画素から出力された信号をデジタル信号に変換する変換部と、前記変換部でデジタル信号に変換された前記信号を出力するための貫通電極部とを含む複数の制御ブロックを有する第2基板と、
を備える撮像素子。 - 請求項1に記載の撮像素子において、
前記貫通電極部は、前記信号を出力する貫通電極を配置するための第1領域と、素子が配置されない第2領域とを有する撮像素子。 - 請求項2に記載の撮像素子において、
前記複数の画素ブロックは、第1画素を含む第1画素ブロックと、第2画素を含む第2画素ブロックとを有し、
前記複数の制御ブロックは、前記第1画素から出力された第1信号をデジタル信号に変換する第1変換部と、前記第1変換部でデジタル信号に変換された前記第1信号を出力するための第1貫通電極部とを含む第1制御ブロックと、前記第2画素から出力された第2信号をデジタル信号に変換する第2変換部と、前記第2変換部でデジタル信号に変換された前記第2信号を出力するための第2貫通電極部とを含む第2制御ブロックとを有し、
前記第1画素ブロックと前記第2画素ブロックとは、前記第1基板において隣に並んで配置され、
前記第1制御ブロックに含まれる前記第1領域と、前記第2制御ブロックに含まれる前記第2領域とは、前記第2基板において隣に並んで配置される撮像素子。 - 請求項3に記載の撮像素子において、
前記第1画素ブロックと前記第2画素ブロックとは、前記行方向において隣に並んで配置され、
前記第1制御ブロックに含まれる前記第1領域と、前記第2制御ブロックに含まれる前記第2領域とは、前記行方向において隣に並んで配置される撮像素子。 - 請求項4に記載の撮像素子において、
前記第1制御ブロックに含まれる前記第1変換部と、前記第2制御ブロックに含まれる前記第2変換部とは、前記行方向において隣に並んで配置される撮像素子。 - 請求項5に記載の撮像素子において、
前記第1貫通電極部に出力された前記第1信号と、前記第2貫通電極部に出力された前記第2信号とに画像処理を行う画像処理部を有する第3基板を備える撮像素子。 - 請求項6に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号のデータ量と、前記第2貫通電極部に出力された前記第2信号のデータ量とを小さくする処理を行う撮像素子。 - 請求項6に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号と、前記第2貫通電極部に出力された前記第2信号とを圧縮する処理を行う撮像素子。 - 請求項6に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号に画像処理を行う第1処理部を含む第1処理ブロックと、前記第2貫通電極部に出力された前記第2信号に画像処理を行う第2処理部を含む第2処理ブロックとを有する撮像素子。 - 請求項9に記載の撮像素子において、
前記第1処理部は、前記第1貫通電極部に出力された前記第1信号のデータ量を小さくする処理を行い、
前記第2処理部は、前記第2貫通電極部に出力された前記第2信号のデータ量を小さくする処理を行う撮像素子。 - 請求項9に記載の撮像素子において、
前記第1処理部は、前記第1貫通電極部に出力された前記第1信号を圧縮する処理を行い、
前記第2処理部は、前記第2貫通電極部に出力された前記第2信号を圧縮する処理を行う撮像素子。 - 請求項9から請求項11のいずれか1項に記載の撮像素子において、
第1処理ブロックに含まれる前記第1処理部と、前記第2処理ブロックに含まれる前記第2処理部とは、前記行方向において隣に並んで配置される撮像素子。 - 請求項3に記載の撮像素子において、
前記第1画素ブロックと前記第2画素ブロックとは、前記列方向において隣に並んで配置され、
前記第1制御ブロックに含まれる前記第1領域と、前記第2制御ブロックに含まれる前記第2領域とは、前記列方向において隣に並んで配置される撮像素子。 - 請求項13に記載の撮像素子において、
前記第1制御ブロックに含まれる前記第1領域と、前記第2制御ブロックに含まれる前記第2領域とは、前記列方向において前記第1制御ブロックに含まれる前記第1変換部と、前記第2制御ブロックに含まれる前記第2変換部との間に配置される撮像素子。 - 請求項13または請求項14に記載の撮像素子において、
前記第1貫通電極部に出力された前記第1信号と、前記第2貫通電極部に出力された前記第2信号とに画像処理を行う画像処理部を有する第3基板を備える撮像素子。 - 請求項15に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号のデータ量と、前記第2貫通電極部に出力された前記第2信号のデータ量とを小さくする処理を行う撮像素子。 - 請求項15に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号と、前記第2貫通電極部に出力された前記第2信号とを圧縮する処理を行う撮像素子。 - 請求項15に記載の撮像素子において、
前記画像処理部は、前記第1貫通電極部に出力された前記第1信号に画像処理を行う第1処理部を含む第1処理ブロックと、前記第2貫通電極部に出力された前記第2信号に画像処理を行う第2処理部を含む第2処理ブロックとを有する撮像素子。 - 請求項18に記載の撮像素子において、
前記第1処理部は、前記第1貫通電極部に出力された前記第1信号のデータ量を小さくする処理を行い、
前記第2処理部は、前記第2貫通電極部に出力された前記第2信号のデータ量を小さくする処理を行う撮像素子。 - 請求項18に記載の撮像素子において、
前記第1処理部は、前記第1貫通電極部に出力された前記第1信号を圧縮する処理を行い、
前記第2処理部は、前記第2貫通電極部に出力された前記第2信号を圧縮する処理を行う撮像素子。 - 請求項1から請求項20のいずれか一項に記載の撮像素子において、
前記制御ブロックは、前記画素を制御するための制御信号を出力する駆動部を有する撮像素子。 - 請求項21に記載の撮像素子において、
前記画素は、光を電荷に変換する光電変換部と、前記光電変換部で変換された電荷を転送するための転送部とを有し、
前記駆動部は、前記転送部を制御するための転送制御信号を出力する撮像素子。 - 請求項22に記載の撮像素子において、
前記画素は、前記光電変換部で変換された電荷を排出するための排出部を有し、
前記駆動部は、前記排出部を制御するための排出制御信号を出力する撮像素子。 - 請求項1から請求項23のいずれか一項に記載の撮像素子を備える撮像装置。
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WO2020262461A1 (ja) * | 2019-06-26 | 2020-12-30 | ソニーセミコンダクタソリューションズ株式会社 | 固体撮像装置及び電子機器 |
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