WO2006008880A1 - 固体撮像装置及びサンプリング回路 - Google Patents
固体撮像装置及びサンプリング回路 Download PDFInfo
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- WO2006008880A1 WO2006008880A1 PCT/JP2005/010384 JP2005010384W WO2006008880A1 WO 2006008880 A1 WO2006008880 A1 WO 2006008880A1 JP 2005010384 W JP2005010384 W JP 2005010384W WO 2006008880 A1 WO2006008880 A1 WO 2006008880A1
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- 238000005070 sampling Methods 0.000 title claims abstract description 214
- 239000003990 capacitor Substances 0.000 claims abstract description 130
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000003384 imaging method Methods 0.000 claims description 51
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000002596 correlated effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 22
- 238000009792 diffusion process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 101000921780 Solanum tuberosum Cysteine synthase Proteins 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
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- 101000743485 Homo sapiens V-set and immunoglobulin domain-containing protein 1 Proteins 0.000 description 1
- 102100038293 V-set and immunoglobulin domain-containing protein 1 Human genes 0.000 description 1
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- DIUIQJFZKRAGBZ-UHFFFAOYSA-N chetoseminudin A Natural products O=C1C(SSS2)(CO)N(C)C(=O)C32CC2(N4C5=CC=CC=C5C(CC56C(N(C)C(CO)(SS5)C(=O)N6C)=O)=C4)C4=CC=CC=C4NC2N31 DIUIQJFZKRAGBZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/616—Noise processing, e.g. detecting, correcting, reducing or removing noise involving a correlated sampling function, e.g. correlated double sampling [CDS] or triple sampling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
- H04N25/671—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
- H04N25/677—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction for reducing the column or line fixed pattern noise
-
- 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
- H04N25/767—Horizontal readout lines, multiplexers or registers
Definitions
- the present invention relates to a solid-state imaging device suitable for an image input device typified by a video camera and a digital still camera, and more particularly to a sampling circuit for reading a signal from a MOS or CMOS type imaging device.
- Patent Document 1 With the widespread use of image input devices such as video cameras and digital still cameras, various solid-state imaging devices have been proposed (see, for example, Patent Document 1).
- FIG. 1 is a circuit diagram of a conventional solid-state imaging device.
- the unit pixel photoelectric conversion element consists of a photodiode PD, a readout MOS transistor Ml, a floating diffusion FD, a reset MOS switch M2, an amplification MOS switch M3, and a row selection MOS switch M4. Every operation is controlled.
- the column signal lines V SIGn and VSIGn + 1 have sampling MOS switch Ml 2 and clamp capacitor C
- a sampling circuit Correlated Double Sampling circuit; hereinafter referred to as CDS circuit
- CDS circuit Correlated Double Sampling circuit
- the horizontal signal line HSIG has a VHB application circuit (horizontal signal line reset M ⁇ S switch Ml 5, constant voltage source) for applying a bias voltage VHB synchronized with the horizontal signal line reset pulse HR to the horizontal signal line HSIG.
- VHB is connected.
- FIG. 2 is a timing chart showing the operation of the conventional solid-state imaging device shown in FIG.
- the detailed operation of the unit pixel is as follows. As shown in FIG. 2, during a certain horizontal blanking period HBLK, for a pixel row of the corresponding horizontal scanning line (for example, the m-th row), first, a row reset pulse 0> VRSTm output from the vertical shift register 90 Reset the floating diffusion FD to the power supply voltage VDD. Immediately, the row selection pal Raise VSLm to output the reset level of the pixel in which floating diffusion FD is in reset state to column signal line VSIGn.
- clamping the pixel reset level (first pixel signal) passes through the sampling MOS switch M12 and the clamp capacitor C
- the first electrode (the electrode connected to the sampling M ⁇ S switch M12)
- the voltage held at the connection point becomes a value changed by the signal level CL ⁇ SH amount division ratio with respect to the clamp voltage VCL, and thereby the threshold voltage included in the amplification MOS switch M3 of the unit pixel.
- the variation is subtracted, and the fixed pattern noise of the pixel is suppressed.
- the voltage of the signal line HSIG changes and is output as a pixel signal.
- Patent Document 1 Japanese Patent Laid-Open No. 10-173997
- the sampling circuit is basically composed of a MOS switch and a capacitor C, and the gate voltage 0> SH is set so that the MOS switch is switched from the ON state to the OFF state.
- This equivalent circuit is the circuit shown in Fig. 3 (b) when the MOS switch is in the ON state and Fig. 3 (c) when the MOS switch is in the OFF state.
- the input signal VIN and the sampling capacitor C are in the conductive state, and the sampling pulse 0> SH is the gate capacitance of the MOS switch.
- Gate-source capacitance C, gate-drain capacitance C, and MOS switch are in the linear region.
- the capacitance model changes in the OFF state, and the input signal VIN is capacitively coupled to the sampling pulse SH via the gate-drain capacitance C.
- Sampling capacitor C is connected to sampling pulse S via gate-source capacitance C.
- FIG. 5A is a circuit diagram showing only a portion related to only the clamp phase in the conventional circuit regarding this phase, that is, the operation of sampling the first pixel signal.
- the threshold variation of the clamp MOS switch M16 in which the clamp pulse 0> CL enters is ⁇ V
- the gate-source capacitance of the clamp MOS switch M16 is C
- a Qc SH -damp -c S H + CcL + C G s A Vth - clam P
- FIG. 5B is a circuit diagram showing only a portion related to the sample phase in the conventional circuit regarding this phase, that is, the operation of sampling the second pixel signal.
- the threshold variation of the sampling MOS switch M12 to which the sample pulse SH enters is ⁇
- the gate-source capacitance of the MOS switch is C
- the sampling capacitor th-sample GS is C capacitance
- the clamp capacitor capacitance is C
- FIG. 5 (c) is a circuit diagram showing only a portion related to only the horizontal output phase in the conventional circuit regarding this phase, that is, the operation of outputting the signal voltage stored in the sampling capacitor to the horizontal signal line. It is.
- the threshold variation of the column selection MOS switch M14 to which the column selection pulse ⁇ ⁇ enters is ⁇ , and the gate-source th-HSW of the M ⁇ S switch
- the capacitance is C
- the gate-drain capacitance is C
- the sum of C and C and the gate oxide capacitance is
- the conventional circuit configuration means that the vertical streak fixed pattern noise cannot be suppressed unless the threshold variation of the MOS switch is removed.
- an object of the present invention is to provide a solid-state imaging device or the like that prevents the occurrence of fixed pattern noise having a correlation in the column direction (or the row direction) due to the non-uniformity of the sampling circuit itself.
- a solid-state imaging device is a solid-state imaging device including a sampling circuit that samples a signal from a photoelectric conversion element, and the sampling circuit is an alternating current of the signal.
- a clamp capacitor that is a capacitor that transmits only the component
- a sampling MOS switch that is a MOS transistor that transmits or blocks the transmission of the signal transmitted through the clamp capacitor, and
- the capacitance of the clamp capacitor and the capacitance of the sampling capacitor have a relationship determined by the capacitance specific to the sampling MOS switch.
- the ratio between the capacitance of the sampling capacitor and the capacitance of the clamp capacitor is
- a constant value determined by the capacitance specific to the sampling MOS switch is used.
- the ratio of the total capacity in series connection to the capacity of the column signal line that transmits the signal is a constant value determined by the capacity inherent to the sampling MS switch.
- the constant value is substantially equal to the ratio between the gate-source capacitance and the gate capacitance of the sampling MOS switch.
- the sampling circuit further applies a bias voltage to the output line and a column selection MOS switch that is an MO switch that turns the connection between the sampling capacitor and the output line to N or OFF.
- a bias voltage application circuit wherein the bias voltage application circuit may change a bias voltage applied to the output line in synchronization with a control signal for turning the column selection M0S switch from an ON state to an OFF state.
- the bias voltage application circuit uses a value determined by a capacitance of the sampling capacitor, a capacitance of the clamp capacitor, a capacitance between the output line and a reference potential, and a capacitance specific to the column selection MOS switch as a proportional coefficient. The bias voltage is changed by the change amount.
- a solid-state imaging device is a solid-state imaging device including a sampling circuit that samples a signal of photoelectric conversion element force, and includes each photoelectric conversion element for one column.
- two sampling circuits are provided, and the two sampling circuits are connected in parallel so that one column signal line for transmitting a signal from the photoelectric conversion element for one column is used as a common input,
- the sampling circuit includes a sampling capacitor that is a capacitor for holding the signal, and a sampling MOS switch that is a MOS transistor that transmits the signal to the sampling capacitor or blocks the transmission of the signal.
- the ratio between the capacitance of the capacitor and the capacitance of the column signal line is a constant determined by the capacitance inherent to the sampling MOS switch. Characterized in that there.
- the constant value is substantially equal to the ratio between the gate-source capacitance and the gate capacitance of the sampling MOS switch.
- the sampling circuit further includes a column selection MOS switch which is a MOS switch for turning on or off a connection between the sampling capacitor and an output line, and the signal held in the sampling capacitor is transmitted to the sampling circuit.
- a column selection MOS switch which is a MOS switch for turning on or off a connection between the sampling capacitor and an output line, and the signal held in the sampling capacitor is transmitted to the sampling circuit.
- the column selection MOS switch may be switched from a non-conductive state to a conductive state and then to a non-conductive state. As a result, the fixed pattern noise generated from the column selection MOS switch can be canceled out.
- the present invention can be realized not only as a solid-state imaging device as described above, but also as a single sampling circuit included in the solid-state imaging device.
- the sampling circuit uses an MOO switch and a sampling capacitor, it is not limited to a sampling circuit for a solid-state imaging device, but can be applied as a sampling circuit for other devices.
- a column sampling circuit (or a row sampling circuit) connected to each column signal line (or each horizontal signal line) for a MOS type or CMOS type imaging device having a column sampling circuit. It is possible to effectively cancel out the vertical streak-like fixed pattern noise that occurs as a secondary.
- FIG. 1 is a circuit diagram of a conventional solid-state imaging device.
- FIG. 2 is a timing chart showing the operation of a conventional solid-state imaging device.
- FIG. 3 is a diagram showing a conventional sampling circuit.
- FIG. 4 is a diagram for explaining a mechanism of variation in sampling voltage in a plurality of conventional sampling circuits. 5] FIG. 5 is a diagram for explaining each operation phase of the conventional sampling circuit. 6] FIG. 6 is a circuit diagram of the solid-state imaging device according to Embodiment 1 of the present invention.
- FIG. 7 is a timing chart showing the operation of the solid-state imaging device.
- FIG. 8 is a diagram showing a sampling circuit of the solid-state imaging device.
- FIG. 9 is a diagram for explaining the operation in the clamp phase of the sampling circuit.
- FIG. 10 is a diagram for explaining the operation in the horizontal output phase of the sampling circuit.
- FIG. 11 is a circuit diagram of a solid-state imaging device according to Embodiment 2 of the present invention. 12] FIG. 12 is a timing chart showing the operation of the solid-state imaging device.
- FIG. 13 is a circuit diagram of the solid-state imaging device according to Embodiment 3 of the present invention.
- FIG. 14 is a timing chart showing the operation of the solid-state imaging device.
- FIG. 6 is a circuit diagram of the solid-state imaging device according to Embodiment 1 of the present invention.
- the characteristic changes are the connection of the CDS circuit (column CDS circuit) connected to each column signal line VSIGn and VSIGn + 1 and the column CDS. It is an element configuration in the circuit.
- This column CDS circuit consists of clamp capacitor C, sampling M
- Clamp pulse on signal line HSIG 0> Apply bias voltage VHB synchronized with CL VHB modulation circuit (horizontal signal line reset MOS switch M15, constant voltage source V0, resistors Rl, R2) and column selection MOS switch M14 control gate It consists of a circuit (MOS switches with gates Gl and G2).
- FIG. 7 is a timing chart showing the operation of the solid-state imaging device shown in FIG.
- the operation of the mth pixel row is as follows. First, at the beginning of the horizontal blanking period HBLK, a row reset pulse 0> VRSTm is generated from the vertical shift register 90, and the signal charge photoelectrically converted by the photodiode PD for the pixel in the m-th row is converted into a signal voltage. Resetting diffusion FD to power supply voltage VDD.
- the process proceeds to the clamp phase (t ⁇ tl), and the row selection pulse VSLm, sample pulse SH, clamp pulse CL, and clamp / horizontal signal line reset pulse CL_HR rise.
- the column signal lines (VSIG1,..., VSIGn,..., VSIGN) output the first pixel signal that resets the floating diffusion FD from the pixels in the m-th row, and the column signal lines VSIGn
- the bias voltage VHB is applied to the electrode on the sampling MOS switch Ml 2 side of the sampling capacitor C while the voltage is the first pixel signal.
- the bias voltage VHB at this time is a value obtained by adding a voltage obtained by dividing the voltage in the high state of the clamp pulse CL by the resistors R1 and R2 and the constant voltage V0.
- the clamp pulse 0> CL falls, and this clamp pulse turns off the column selection MOS switch M14 via the gated MOS switch G1, so that the sampling capacitor C is clamped to the bias voltage VHB.
- the false voltage VHB drops by a certain voltage (the voltage of the clamp pulse and the voltage determined by the resistors R1 and R2) in synchronization with the fall of the clamp pulse 0> CL. If it is no longer necessary to apply the noise voltage VHB to the sampling capacitor C, the clamp and horizontal signal line reset
- the pulse CL CL_HR is lowered to complete the clamp phase.
- the vertical shift register 90 power column read pulse VRDm is generated for floating diffusion FD transfer of the signal charge photoelectrically converted by the photodiode PD before entering the Sampno reference phase. Then, the potential of the floating diffusion FD changes according to the number of signal charges photoelectrically converted by the photodiode PD, and the second pixel signal of the pixel power in the m-th row is output.
- the difference between the first and second pixel signals with respect to the noisy voltage VHB, that is, the threshold voltage variation (pixel fixed pattern noise) of the amplification MOS switch M3 in the pixel is subtracted from the electrode. A voltage that depends only on the quantity appears.
- the sampling pulse 0> SH is lowered to hold the signal in the sampling capacitor C, and this phase is completed.
- the column selection pulse ⁇ sequentially generated from the horizontal shift register 91 in the horizontal direction appears on the horizontal signal line HSIG in order from the pixel end of the m-th row. Before each pixel signal appears, it is necessary to reset the horizontal signal line HSIG, so a clamp and horizontal signal line reset pulse CL_HR is generated at the beginning of one pixel period (lpixel).
- a column selection pulse ⁇ ⁇ is generated in the latter half of one pixel period, and the pixel signal held in the sampling capacitor C is converted to water.
- the signal is output to the flat signal line HSIG, and the voltage change during one pixel period is detected by the CDS circuit 93 connected to the output of the amplifier circuit AMP92 and output as a pixel signal.
- the column selection MOS switch M14 control gate circuit MOS switches with gates Gl and G2
- the column selection MOS switch M14 is switched by the clamp pulse ⁇ CL during the blanking period HBLK and by the column selection pulse ⁇ during the horizontal video period.
- FIGS. 8A to 8D are circuit diagrams for explaining the mechanism.
- Figure 8 (a) shows the sampling circuit in this embodiment.
- a capacitive signal source C is provided on the input signal side, and the drain of the sampling MOS switch Q1 is connected.
- Sampling Capacitor C connected to the source side of M ⁇ S switch Q1
- FIGS. 8B and 8C are equivalent circuits (capacitance models) when the sampling MOS switch Q1 is in the ON state and the OFF state, respectively.
- the gate capacitance C is
- the sampling pulse S reaches the threshold V of the sampling MOS switch Q1 from the power supply voltage VDD until the A period and then to GND.
- the sampling circuit becomes the equivalent circuit shown in FIG. 8 (b) in the A period, and becomes the equivalent circuit shown in FIG. 8 (c) in the B period. From these equivalent circuits, the amount of charge Q (V) entering the sampling capacitor C in period A and period B, respectively.
- the ratio of the capacitance values of the clamp capacitor C and the sampling capacitor C shown in FIG. 6 can be determined.
- CCCC is the gate capacity of the sampling MOS switch Ml 2 respectively.
- clamp and horizontal output are performed with the same MOS switch (column selection M ⁇ S switch M14).
- VHB bias voltage
- CCCC is the gate capacity of the column select MOS switch M14.
- Fig. 9 is a diagram for explaining the variation in the amount of charge in the clamp phase
- Fig. 9 (a) shows the points that affect the amount of charge entering the sampling capacitor C in the clamp phase.
- FIG. 9 (b) is a diagram showing a waveform of the clamp pulse CL in the clamp phase.
- the bias voltage VHB becomes capacitive in the horizontal signal line HSIG as viewed from the column selection MOS switch M14 (capacitance CI shown in FIG. 8 (a)).
- the period A to the period B are changed in synchronization with the clamp pulse ⁇ CL.
- the column selection MOS switch M14 is caused by different threshold voltages V and V.
- Fig. 9 is a diagram for explaining the variation in the amount of charge in the horizontal output phase
- Fig. 10 (a) affects the amount of charge entering the sampling capacitor C in the horizontal output phase.
- FIG. 10 (b) is a diagram showing the waveform of the column selection pulse ⁇ in the horizontal output phase.
- the ratio of the capacitance values of clamp capacitor C and sampling capacitor C is determined from the capacitance of each part of sampling MOS switch M12.
- the bias voltage VHB applied to the horizontal signal line is changed in synchronization with the clamp pulse ⁇ CL.
- the column selection pulse ⁇ ⁇ during the horizontal blanking period HBLK If it is output at the same timing as the force S clamp node CL, the bias voltage VHB may be changed in synchronization with the column selection pulse ⁇ Hn output during such a horizontal blanking period HBLK. That is, if the bias voltage can be modulated in synchronization with the signal that controls the column selection MOS switch M14 from the ON state to the OFF state in the clamp phase, the column selection is performed even if the modulation signal is the clamp pulse ⁇ CL. It may be a pulse ⁇ Hn.
- FIG. 11 is a circuit diagram of the solid-state imaging device according to Embodiment 2 of the present invention.
- the solid-state imaging device in the present embodiment is basically composed of an imaging element and a column CDS circuit as in the first embodiment, but the connection of the IJCDS circuit is different from that in the first embodiment. The following description will focus on the differences from the first embodiment.
- the input of the “l” CDS circuit is the drain of the sampling MOS switch M12, and a clamp capacitor C is connected to the source side. Sampling capacitor C is
- the drain of the column select MOS switch corresponds to the output of the column CDS circuit and is connected to the horizontal signal line HSIG.
- the horizontal signal line HSIG is connected to a clamp and horizontal signal line reset bias circuit, and is composed of a bias voltage VHB and a clamp and horizontal signal line reset MOS switch.
- FIG. 12 is a timing chart showing the operation of the solid-state imaging device shown in FIG. The difference from the first embodiment regarding the operation is shown in Fig. 8 (a) because the signal output (voltage source) from the pixel where the column signal line VSIGn is not capacitive is directly visible when viewed from the sampling MOS switch M12.
- GH CGSH + CGOH + CGDH
- clamp capacitor C and the sampling capacitor C are connected in series.
- the ratio to the capacity of VSIG should be a constant value that determines the capacity of each part of sampling MOS switch M12.
- the clamp capacitor C and the capacitance value of the sampling capacitor C have a fixed relationship, and the column signal line VSIG is set in the sampling phase.
- FIG. 13 is a circuit diagram of the solid-state imaging device according to Embodiment 3 of the present invention.
- this solid-state imaging device for each column signal line VSIGn, two sampling circuits (sampling MOS switch M6, column selection M0S switch M8, and sampling capacitor C force) are used instead of the CDS circuit in the first embodiment.
- Sampling circuit and sampling MOS switch for each column signal line VSIGn, two sampling circuits (sampling MOS switch M6, column selection M0S switch M8, and sampling capacitor C force) are used instead of the CDS circuit in the first embodiment. Sampling circuit and sampling MOS switch
- a differential AMP 94 connected to the two horizontal signal lines HSIG1 and HSIG2 is provided.
- This solid-state imaging device includes a first pixel signal from the image sensor (a signal from the reset floating diffusion FD) and a second pixel signal (the floating diffusion FD after the charge of the photodiode PD is transferred). Unlike the double sampling, the first and second pixel signals are sampled by separate sampling circuits and are sent to two independent horizontal signal lines HSIG1 and HSIG2, respectively. This is a circuit that realizes a method of canceling the fixed pattern noise of the pixel by outputting them to the inverting input and non-inverting input of the differential AMP94.
- the clamp phase does not exist. Therefore, level out cuff In Aze, as shown in the timing chart of FIG. 14, in order to apparently cancel the charges coming from the column selection MOS switches M8 and M9, the horizontal signal line reset signal HRST is used at the beginning of one pixel period (lpixel). After resetting the signal lines HSIG1 and HSIG2, the column selection MOS switches ⁇ 8 and ⁇ 9 are temporarily turned on by outputting the column selection pulse ⁇ to the middle of one pixel period.
- the signals of the horizontal signal lines HSIG1 and HSIG2 are used as video signals, so that a secondary vertical signal generated from the column selection MOS switch is obtained. Streaky Fixed pattern noise can be canceled out.
- the capacitance of the sampling capacitor C and the column signal As described above, according to the present embodiment, the capacitance of the sampling capacitor C and the column signal
- the ratio of line VSIG to capacitance C is set to a constant value
- Line VSIGn is electrically floated, the horizontal signal line is reset during one pixel period, and then the column selection M ⁇ S switch is temporarily set to ⁇ N.
- the column selection M ⁇ S switch is temporarily set to ⁇ N.
- the present invention is a solid-state image pickup device used for an image input device such as a video camera or a digital still camera, and particularly a solid-state image pickup device that includes a sampling circuit that reads a signal from an MOS or CMOS-type image pickup device. It can be used as an imaging device or the like.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/631,796 US20070222876A1 (en) | 2004-07-20 | 2005-06-07 | Solid-State Image Pickup Device and Sampling Circuit |
KR1020067027117A KR20070032956A (ko) | 2004-07-20 | 2005-06-07 | 고체 촬상 장치 및 샘플링 회로 |
EP05748598A EP1770990A1 (en) | 2004-07-20 | 2005-06-07 | Solid-state image pickup device and sampling circuit |
CA002573721A CA2573721A1 (en) | 2004-07-20 | 2005-06-07 | Solid-state image pickup device and sampling circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-212183 | 2004-07-20 | ||
JP2004212183A JP2006033632A (ja) | 2004-07-20 | 2004-07-20 | 固体撮像装置及びサンプリング回路 |
Publications (1)
Publication Number | Publication Date |
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WO2006008880A1 true WO2006008880A1 (ja) | 2006-01-26 |
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PCT/JP2005/010384 WO2006008880A1 (ja) | 2004-07-20 | 2005-06-07 | 固体撮像装置及びサンプリング回路 |
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US (1) | US20070222876A1 (ja) |
EP (1) | EP1770990A1 (ja) |
JP (1) | JP2006033632A (ja) |
KR (1) | KR20070032956A (ja) |
CN (1) | CN1973532A (ja) |
CA (1) | CA2573721A1 (ja) |
TW (1) | TW200607338A (ja) |
WO (1) | WO2006008880A1 (ja) |
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JP5129035B2 (ja) * | 2008-06-17 | 2013-01-23 | オリンパス株式会社 | 固体撮像装置 |
JP2010041655A (ja) * | 2008-08-08 | 2010-02-18 | Toshiba Corp | 固体撮像装置の駆動方法 |
US11606521B2 (en) * | 2021-03-05 | 2023-03-14 | Semiconductor Components Industries, Llc | Image sensors with reduced peak power |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997007628A1 (fr) * | 1995-08-11 | 1997-02-27 | Kabushiki Kaisha Toshiba | Dispositif semi-conducteur mos pour effectuer une saisie d'iamge |
JPH10173997A (ja) * | 1996-12-10 | 1998-06-26 | Sharp Corp | 増幅型固体撮像装置 |
JP2000350106A (ja) * | 1999-03-30 | 2000-12-15 | Sharp Corp | 相関2重サンプリング回路およびそれを用いた増幅型固体撮像装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US5471515A (en) * | 1994-01-28 | 1995-11-28 | California Institute Of Technology | Active pixel sensor with intra-pixel charge transfer |
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2004
- 2004-07-20 JP JP2004212183A patent/JP2006033632A/ja active Pending
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2005
- 2005-06-07 KR KR1020067027117A patent/KR20070032956A/ko not_active Application Discontinuation
- 2005-06-07 EP EP05748598A patent/EP1770990A1/en not_active Withdrawn
- 2005-06-07 WO PCT/JP2005/010384 patent/WO2006008880A1/ja not_active Application Discontinuation
- 2005-06-07 CA CA002573721A patent/CA2573721A1/en not_active Abandoned
- 2005-06-07 CN CNA2005800204027A patent/CN1973532A/zh active Pending
- 2005-06-07 US US11/631,796 patent/US20070222876A1/en not_active Abandoned
- 2005-06-15 TW TW094119813A patent/TW200607338A/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997007628A1 (fr) * | 1995-08-11 | 1997-02-27 | Kabushiki Kaisha Toshiba | Dispositif semi-conducteur mos pour effectuer une saisie d'iamge |
JPH10173997A (ja) * | 1996-12-10 | 1998-06-26 | Sharp Corp | 増幅型固体撮像装置 |
JP2000350106A (ja) * | 1999-03-30 | 2000-12-15 | Sharp Corp | 相関2重サンプリング回路およびそれを用いた増幅型固体撮像装置 |
Also Published As
Publication number | Publication date |
---|---|
TW200607338A (en) | 2006-02-16 |
EP1770990A1 (en) | 2007-04-04 |
KR20070032956A (ko) | 2007-03-23 |
US20070222876A1 (en) | 2007-09-27 |
CA2573721A1 (en) | 2006-01-26 |
JP2006033632A (ja) | 2006-02-02 |
CN1973532A (zh) | 2007-05-30 |
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