WO2007129451A1 - イメージセンサ - Google Patents
イメージセンサ Download PDFInfo
- Publication number
- WO2007129451A1 WO2007129451A1 PCT/JP2007/000401 JP2007000401W WO2007129451A1 WO 2007129451 A1 WO2007129451 A1 WO 2007129451A1 JP 2007000401 W JP2007000401 W JP 2007000401W WO 2007129451 A1 WO2007129451 A1 WO 2007129451A1
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- WO
- WIPO (PCT)
- Prior art keywords
- measurement
- image sensor
- measurement electrode
- electrical
- specimen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/805—Coatings
- H10F39/8057—Optical shielding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/811—Interconnections
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/802—Geometry or disposition of elements in pixels, e.g. address-lines or gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/803—Pixels having integrated switching, control, storage or amplification elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/809—Constructional details of image sensors of hybrid image sensors
Definitions
- the present invention relates to an image sensor for detecting optical information and electrical information derived from a specimen (measuring object) and reproducing a two-dimensional image related to the measuring object sample.
- an image sensor for detecting optical information and electrical information derived from a specimen (measuring object) and reproducing a two-dimensional image related to the measuring object sample.
- Measurement of various biological tissues such as DNA, mRNA, protein, peptide, saccharide, etc. ⁇ It relates to an image sensor suitable for performing observation.
- DNA microarrays also called DNA chips
- DNA probes having a plurality of types of known base sequences are immobilized on a substrate such as a slide glass.
- a sample DNA which is a specimen
- hybridization is performed.
- the sample DNA is immobilized on the substrate by complementary binding to the corresponding specific DNA probe. Therefore, information on the base sequence of sample DN A can be obtained by identifying the DN A probe to which sample DN A is bound.
- Methods for identifying a DN A probe to which a sample DNA is bound are roughly classified into optical measurement and electrical measurement.
- a sample DNA preliminarily labeled with fluorescence is allowed to flow on a microarray substrate and complementarily bound with a DNA probe.
- the microarray is irradiated with excitation light of a predetermined wavelength, only the DNA probe bound to the sample DNA emits fluorescence. Therefore, information on the base sequence of the sample DNA can be obtained by detecting this fluorescence intensity with a photodetector and examining which DNA probe emits light.
- Electrochemistry associated with rehybridization is achieved by an electrode that directly contacts a measurement target spot.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2 0 0 2-2 0 2 3 0 3
- Patent Document 2 Japanese Patent Laid-Open No. 2 0 0 _ 4 9 9 1
- Patent Document 3 Japanese Patent Laid-Open No. 2 0 0 5 _ 2 0 7 1 5 5
- the present invention has been made in view of the above-mentioned problems.
- the first object of the present invention is to acquire a high-resolution two-dimensional image and optical measurement by optical measurement such as fluorescence for the same sample. It is an object of the present invention to provide an image sensor capable of acquiring a high-resolution two-dimensional image by using a parallel method or a time-division method.
- a second object of the present invention is to provide an image sensor capable of easily removing such residual charges and suppressing background noise.
- a third object of the present invention is to provide an image sensor that enables high-performance measurement, which has been difficult with conventional electrical measurement, by utilizing LSI technology. .
- a first invention made to achieve the first object includes an optical measurement function for acquiring optical information from a specimen, and the specimen by directly contacting the specimen or via capacitive coupling.
- a photoelectric conversion unit for an optical measurement function provided on a surface layer of the semiconductor substrate; b) provided so as to cover the surface layer of the semiconductor substrate, at least the uppermost layer being a conductor layer, and the photoelectric conversion A plurality of light-shielding layers having a non-light-shielding region for introducing light into the part, C) a measurement electrode for an electrical measurement function formed using the uppermost conductor layer of the light shielding layer;
- the conductor layer is typically a metal layer, but may be a layer made of a conductive substance other than metal.
- a large number of pixel cells are arranged two-dimensionally in n rows and m columns on one surface of the semiconductor substrate, and each pixel cell is connected to the photoelectric conversion unit.
- a first readout circuit for selectively reading out the electrical signal obtained by the photoelectric conversion unit, and a second readout circuit for reading out the electrical signal obtained by the measurement electrode A configuration is preferable.
- the photoelectric conversion unit is typically a photodiode.
- a metal wiring layer laminated on a semiconductor substrate is used for the multilayer wiring as the light shielding layer. it can. Further, in addition to the metal wiring layer, it may include a polycrystalline silicon layer used for forming a gate electrode or a capacitor of a MOS transistor, but at least the uppermost layer of the light shielding layer is a conductor layer such as a metal.
- the light shielding layer is for preventing unnecessary charges from being generated by the incidence of light on a MOS transistor other than the photoelectric conversion unit, for example, a MOS transistor constituting a readout circuit, etc.
- the light shielding region and the non-light shielding region are set by appropriately designing the multilayer wiring pattern as described above.
- the uppermost conductive layer in the light shielding layer is separated, for example, by dividing it into pixel cells, and this is used as a measurement electrode.
- the portion where the conductor layer is removed to separate each pixel cell does not function for light shielding, so consider that the light shielding is performed with a pattern such as a lower metal wiring layer. It is desirable.
- a photoelectric conversion unit is provided for each pixel.
- Measurement electrodes can be placed together with a two-dimensional image that captures an optical phenomenon based on an electrical signal from a photoelectric converter and a two-dimensional image that captures an electrical phenomenon based on an electrical signal from a measurement electrode.
- Resolution can be set.
- both two-dimensional images can be acquired simultaneously or in time division.
- one of the two types of measurement electrodes can be selected by providing a protective film layer on the surface of the light shielding layer. That is, a protective film layer is formed on the surface of the light shielding layer, but if the measurement electrode is exposed by providing an opening in the protective film layer on the measurement electrode, the measurement electrode is brought into contact with the specimen directly. Thus, an electrical signal can be measured. Further, in the configuration in which the measurement electrode is covered with the protective film layer that is an insulator so that the measurement electrode is not exposed, the sample placed on the protective film layer is capacitively coupled with the protective film layer interposed therebetween. Thus, an electric signal generated at the measurement electrode can be measured.
- direct measurement and capacitive coupling measurement can be selected even with the same electric measurement.
- a predetermined number of pixel cells can be used as a direct measurement type, and the other can be used as a capacitive coupling measurement type.
- the first readout circuit for optical measurement and the second readout circuit for electrical measurement are provided independently in each pixel cell, and are arranged in a row.
- optical measurement and electrical measurement can be performed simultaneously.
- the first readout circuit and the second readout circuit is shared in each pixel cell, and a signal readout line common to a plurality of pixel cells arranged in the column is used for optical measurement.
- the pixel cell size can be increased by reducing the size of each pixel cell.
- a second invention made to achieve the second object is an image sensor for acquiring a two-dimensional image based on an electrical phenomenon of a specimen
- a plurality of measurement electrodes arranged in a two-dimensional array of n rows and m columns to obtain an electrical signal from the specimen via capacitive coupling;
- a MOS transistor circuit provided for each measurement electrode for reading out an electric signal obtained by the measurement electrode
- a MOS transistor circuit provided for each measurement electrode for resetting the accumulated potential of the measurement electrode
- each measurement electrode can be reset to a predetermined potential through the reset MOS transistor circuit, so that the junction in the vicinity of the measurement electrode can be obtained during the LSI manufacturing process. It is possible to easily remove the charge accumulated in the part. As a result, the background noise due to the residual charge can be reduced and the accuracy of the acquired two-dimensional image can be improved.
- a third invention made to achieve the third object is an image sensor for acquiring a two-dimensional image by an electrical phenomenon of a specimen
- a plurality of measurement electrodes arranged in a two-dimensional array of n rows and m columns to directly contact the sample and acquire an electrical signal from the sample
- a readout MOS transistor circuit provided for each measurement electrode for reading out an electrical signal obtained by the measurement electrode;
- a MOS transistor circuit for current injection provided for each measurement electrode for supplying current to the specimen via the measurement electrode;
- a current supply line connected in common to the current injection MOS transistor corresponding to a plurality of measurement electrodes arranged in a column and provided independently for each column; and a current supply circuit;
- the read MOS transistor circuit is controlled while controlling the current value when a predetermined current is passed through the specimen via the current injection MOS transistor circuit. It is possible to measure the local potential change of the specimen. It is also possible to measure the current that flows locally in the specimen while applying a predetermined voltage to the specimen. In this way, various measurements are possible with either the current or voltage as the controlled variable and the other as the measured variable.
- FIG. 1 is a block diagram showing an overall configuration of an image sensor according to an embodiment (first embodiment) of the present invention.
- FIG. 2 is a circuit configuration diagram of one pixel cell in the image sensor of the first embodiment.
- FIG. 3 is a plan view of a pixel layout in the image sensor of the first embodiment.
- FIG. 4 is a schematic longitudinal sectional view of one pixel cell in the image sensor of the first embodiment.
- FIG. 5 is a configuration diagram of a column circuit in the image sensor of the first embodiment.
- FIG. 6 is a schematic longitudinal sectional view of one pixel cell in an image sensor according to another embodiment (second embodiment) of the present invention.
- FIG. 7 One image sensor according to another embodiment (third embodiment) of the present invention.
- FIG. 8 is a circuit configuration diagram of one pixel cell in an image sensor according to another embodiment (fourth embodiment) of the present invention.
- FIG. 1 is a block diagram showing the overall configuration of the image sensor according to the present embodiment
- FIG. 2 is a circuit configuration diagram of one pixel cell
- FIG. 3 is a plan view of a pixel layout
- FIG. 4 is an outline of one pixel cell.
- FIG. 5 is a configuration diagram of a column circuit provided in each row.
- the image sensor includes an image cell unit 1 in which pixel cells 10 are arranged in a two-dimensional array of n rows and Xm columns, and each row in the image cell unit 1. Obtained by a row scanner 2 for setting various control signals for each of the m pixel cells 10, a column circuit unit 3 and a power column circuit unit 3 provided corresponding to each column in the image cell unit 1. Output circuit section 4 for parallel-serial conversion of the signal for each column and output, and column scanner 5 for setting various control signals for each of n pixel cells 10 in each column in image cell section 1 And a timing control circuit 6 for supplying a predetermined control signal to each part.
- Each pixel cell 10 includes an optical measurement unit 10 a for capturing optical information from a measurement object and an electrical measurement unit 1 Ob for capturing electrical information.
- the optical measuring unit 10 a and the electrical measuring unit 10 b are provided independently.
- the optical measuring unit 1 0 a consists of one photodiode 1 1 and 3 MOS transistors 1 2, 1 3 and 1 4, and the electrical measuring unit 1 0 b consists of 1 measuring electrode 1 5 It consists of three MOS transistors 1 6, 1 7 and 1 8.
- the optical measurement unit 10 a and the electrical measurement unit 10 b have the same structure except that the diode 11 and the measurement electrode 15 are interchanged.
- the photodiode terminal 1 has the anode terminal grounded, and the force sword terminal functions as a source terminal and a source follower amplifier of the first MOS transistor 12 for reset. It is connected to the gate terminal of the second MOS transistor 13.
- the gate terminal and drain terminal of the first MOS transistor 13 are connected to the optical measurement reset signal line 20 and the column reset signal line 24, respectively, and the drain terminal of the second MOS transistor 13 is connected to the voltage signal line 22, Its source terminal is connected to the optical measurement output signal line 25 via a third MOS transistor 14 which is an output selection switch.
- the gate terminal of the third MOS transistor 14 is connected to the row selection signal line 23.
- the measuring electrode 15 is connected to the source terminal of the fourth MOS transistor 16 and the gate terminal of the fifth MOS transistor 17 that functions as a source follower amplifier. It is connected.
- the gate terminal and drain terminal of the fourth MOS transistor 16 are connected to the electrical measurement reset signal line 21 and the column reset signal line 24, respectively, and the drain terminal of the fifth MOS transistor 17 is connected to the voltage signal line 22, respectively.
- the source terminal is connected to the electrical measurement output signal line 26 via a sixth MOS transistor 18 which is an output selection switch.
- the gate terminal of the sixth MOS transistor 18 is connected to the row selection signal line 23.
- the optical measurement reset signal line 20, the electrical measurement reset signal line 21, and the row selection signal line 23 are common to the m pixel cells 10 belonging to the same row in the image cell unit 1, while
- the column reset signal line 24, the optical measurement output signal line 25, and the electrical measurement output signal line 26 are n pixel cells belonging to the same column in the image cell unit 1. Is common.
- Such a configuration is the same as the pixel configuration of a conventional general image sensor.
- each pixel cell 10 is provided with the photodiode 11 as a photoelectric conversion unit and the measurement electrode 15 for electrical measurement.
- the electrode 15 In order to provide the electrode 15, it has a characteristic pixel structure. That is, as shown in FIG. 3, in one pixel cell 10, the light receiving area 11a of the photodiode 11 and the area occupied by the measurement electrode 15 so as to surround it are surrounded. 15 a and a region 15 a of the measurement electrode 15 of the adjacent pixel cell 10 is separated in a lattice shape.
- the surface layer of the Si substrate 30 which is a semiconductor substrate is provided with a MOS transistor or a measuring electrode 15 for reading a signal obtained by the photodiode 11 or the photodiode 11.
- a circuit unit 31 composed of MOS transistors for reading out the obtained signals is formed.
- Four metal wiring layers 3 2 are formed on the surface layer with an insulating interlayer film 3 3 made of Si 0 2 or the like interposed between them, and a protective film layer 3 4 is formed on the uppermost layer. Is formed.
- the metal wiring layer 3 2 is formed in the order of formation from the lower layer to the first metal wiring layer 3 2 1, the second metal wiring layer 3 2 2, the third metal wiring layer 3 2 3, and the fourth metal wiring layer 3 2 4. ing.
- the first metal wiring layer 3 2 1 and the second metal wiring layer 3 2 2 are used for signal wiring in and between circuits
- the third metal wiring layer 3 2 3 and the fourth metal wiring layer 3 2 4 is often used for the power supply and ground of the solid pattern.
- each metal wiring layer 3 2 1 to 3 2 4 has a region in which no metal wiring exists (that is, non-light-shielding) immediately above the photodiode 11 1 that needs to detect light.
- a window opening 36 consisting only of a substantially cylindrical insulating interlayer film 33 and a protective film layer 34 for allowing light to enter the photodiode 11 is formed.
- light entering from above reaches the photodiode 11 and is photoelectrically converted by the photodiode 11.
- the metal wiring layer 3 2 has a light shielding function as well as a wiring function.
- the uppermost fourth metal wiring layer 3 2 4 is used as the measurement electrode 15. It is used. That is, conventionally, in the case of such a four-layer wiring, the fourth metal wiring layer 3 2 4 is electrically used for a power supply or a ground potential, and in particular, a region other than the photodiode 11 is used for light shielding.
- the pattern of the fourth metal wiring layer 3 2 4 is separated for each pixel cell 10 as shown in FIG. By providing an opening 35 in the protective film layer 34 that covers the surface of the layer 3 24, the measurement electrode 15 exposed to the outside is formed for each pixel cell 10.
- the measurement electrode 15 itself also functions as a light shielding layer that prevents light from reaching the circuit portion 31 and the like.
- the fourth metal wiring layer 3 2 4 has a grid-like non-wiring region as described above, and in this region, the fourth metal Wiring layer 3 2 4 has no light blocking effect. Therefore, by covering the area with the metal wiring pattern of the first to third metal wiring layers 3 2 1 to 3 2 3 below that, the light shielding property immediately below the non-wiring area is sufficiently secured. Yes. As a result, the overall light shielding performance is not impaired.
- the uppermost fourth metal wiring layer 3 2 4 that has been conventionally used mainly for light shielding has been used.
- a measurement electrode 15 can be provided for each pixel cell 10.
- FIG. 5 shows a circuit configuration for one column in the column circuit section 3, but the circuit on the left side is provided by the optical measurement output signal line 25 and the electrical measurement output signal line 26, respectively.
- the output circuit connected to the end of this optical measurement output signal line 25 or electrical measurement output signal line 26 is two MOS transistors 4 0, 4 1 connected in series, and one MOS functioning as an amplifier. Transi Includes Star 4 2. On the other hand, reset connected to the end of column reset signal line 2 4
- the Z current supply circuit has a plurality of different values from the switch unit 4 3, the I ZV conversion amplifier 44, and the switch unit 45 including a plurality of switches inserted in the feedback path of the amplifier 44. Including a resistance portion 4 6 including a resistor.
- the photodiode 11 in each pixel cell 10 is first reset at the beginning of one cycle (for example, one frame) for acquiring an image signal. That is, at this time, in the column circuit section 3, the switch 4 3 is turned on and b is turned off, and the column reset signal line 24 is supplied with a predetermined reset voltage V R S.
- the first MOS transistor 12 in the pixel cell 10 is turned on by applying the reset signal ORS to the optical measurement reset signal line 20 in this state, the potential on the power sword side of the photodiode 11 is Reset to the reset voltage VRS.
- the current signal supplied to the optical measurement output signal line 25 is converted into a voltage signal by the MOS transistors 4 1 and 4 2 functioning as load resistors in the column circuit section 3, and is then converted by the MOS transistor 43 in the next stage.
- the readout columns are sequentially selected one by one by the row scanner 2, and correspond to the pixel cells 10 belonging to the selected column among the m pixel cells 10 in one row.
- the voltage signal is output to output terminal 7.
- voltage signals corresponding to the amount of light received by the photodiodes 11 of the pixel cells 10 are sequentially output.
- the following measurement can be performed using the column reset signal line 24.
- the switch 4 3 is turned on and turned off, the predetermined control voltage VCT is applied to the inverting input terminal of the I ZV conversion amplifier 44, and either one is turned on with the switch 45. Turn on and set the gain of I ZV conversion amplifier 4 4.
- the fourth MOS transistor 16 is turned on in this state, the fourth MOS transistor 1 6, the column reset signal line 2 4, the switch 4 3 b, and the switch section 4 5 are connected to the measurement object in contact with the measurement electrode 15.
- the measurement current flows through the resistance section 46, and a voltage signal corresponding to the measurement current is obtained at the output of the I ZV conversion amplifier 44.
- FIG. 6 is a longitudinal sectional view of the pixel cell of the second embodiment, which is basically the same structure as FIG. 4 shown in the first embodiment. The difference is that in the first embodiment, the measurement electrode 15 was exposed because the opening 35 was formed in the protective film layer 3 4 covering the measurement electrode 15, whereas this second implementation was different. In the example, the entire surface of the measurement electrode 15 is left covered with the protective film layer 34.
- the specimen that is the measurement object is placed directly on the protective film layer 34, but the protective film layer that is a kind of dielectric between the measurement electrode 15 and the specimen. Since 3 4 exists, measurement electrode 15 is capacitively coupled to the sample immediately above it, thereby generating a potential. In the case of the configuration of the second embodiment, the potential generated in the measurement electrode 15 in this way is taken out to the electric measurement output signal line 26 through the MOS transistors 17 and 18 and detected.
- the measurement electrode 15 is not exposed in the configuration of the second embodiment. If charge is accumulated in the gate-source Z-drain junction of MOS transistor 17 in this case, there is no path through which this charge can escape, which may result in residual charge and cause background noise.
- the measurement electrodes 15 of all the pixel cells 10 can be reset via the reset MOS transistor 16 and the column reset signal line 24. Is possible. As a result, it is possible to carry out electrical measurement in a state with little noise by removing the accumulated charge as described above.
- each pixel cell 10 requires 6 MOS transistors and pixel cell 1 It is disadvantageous for 0 miniaturization.
- the image sensors of the third embodiment and the fourth embodiment have a configuration in which the number of transistors in the pixel cell 10 can be reduced instead of performing optical measurement and electrical measurement simultaneously.
- FIG. 7 is a circuit configuration diagram of one pixel cell in the image sensor of the third embodiment.
- MOS transistors for reset, source follower amplifier, and output switch are shared between optical measurement and electrical measurement, and output signal line 25 is also 1 Only a book.
- a MOS transistor 50 for optical measurement selection and a MOS transistor 51 for electrical measurement selection are provided to select optical measurement and electrical measurement, and the gate terminal of each MOS transistor is an optical measurement selection signal line. 2 7, connected to electrical measurement selection signal line 2 8
- Either the terminal or the measurement electrode 15 is connected to the MOS transistors 1 2, 1 3, etc., and the measurement operation as described above becomes possible.
- FIG. 8 is a circuit configuration diagram of one pixel cell in the image sensor of the fourth embodiment.
- the MOS transistor 50 is further removed from the configuration of the pixel cell 10 in the third embodiment.
- the MOS transistor 51 is off, the measurement electrode 15 is disconnected, and optical measurement by the photodiode 11 can be performed.
- the MOS transistor 51 is turned on, the measurement electrode 15 is connected to the gate terminal of the MOS transistor 13 and electrical measurement by the measurement electrode 15 is possible.
- the photodiode 11 since the photodiode 11 is still connected, it is desirable to perform electrical measurement under conditions where the fluctuation of incident light on the photodiode 11 can be ignored.
- either a direct measurement type as in the first embodiment or a capacitive coupling measurement type as in the second embodiment can be adopted.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/226,687 US7968833B2 (en) | 2006-04-26 | 2007-04-12 | Image sensor with optical and electrical measurement functions |
| JP2008514377A JP5119534B2 (ja) | 2006-04-26 | 2007-04-12 | イメージセンサ |
| EP07737058.3A EP2012114B1 (en) | 2006-04-26 | 2007-04-12 | Optical and electrical image sensor for biomedical measurements |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-121393 | 2006-04-26 | ||
| JP2006121393 | 2006-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007129451A1 true WO2007129451A1 (ja) | 2007-11-15 |
Family
ID=38667564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/000401 Ceased WO2007129451A1 (ja) | 2006-04-26 | 2007-04-12 | イメージセンサ |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7968833B2 (ja) |
| EP (1) | EP2012114B1 (ja) |
| JP (1) | JP5119534B2 (ja) |
| WO (1) | WO2007129451A1 (ja) |
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| JP2009200462A (ja) * | 2008-01-24 | 2009-09-03 | Sony Corp | 固体撮像装置およびその製造方法 |
| JP2013092437A (ja) * | 2011-10-25 | 2013-05-16 | Tohoku Univ | 複数の電極を備えたicチップ |
| JPWO2021182175A1 (ja) * | 2020-03-11 | 2021-09-16 |
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| CN102713720B (zh) | 2009-10-28 | 2016-05-11 | 阿兰蒂克微科学股份有限公司 | 显微成像装置和显微成像方法 |
| US9075225B2 (en) | 2009-10-28 | 2015-07-07 | Alentic Microscience Inc. | Microscopy imaging |
| US20140152801A1 (en) | 2009-10-28 | 2014-06-05 | Alentic Microscience Inc. | Detecting and Using Light Representative of a Sample |
| EP2910941A4 (en) * | 2012-10-18 | 2016-05-11 | Bio Sensor Inc | SENSOR, SENSOR MODULE AND DETECTION METHOD |
| US10502666B2 (en) | 2013-02-06 | 2019-12-10 | Alentic Microscience Inc. | Sample processing improvements for quantitative microscopy |
| JP2016531282A (ja) | 2013-06-26 | 2016-10-06 | アレンティック マイクロサイエンス インコーポレイテッド | 顕微鏡法に関するサンプル処理の改善 |
| JP2016133510A (ja) | 2015-01-16 | 2016-07-25 | パーソナル ジェノミクス タイワン インコーポレイテッドPersonal Genomics Taiwan,Inc. | 導光機能を有する光学センサー及びその製造方法 |
| EP3973272A1 (en) * | 2019-06-28 | 2022-03-30 | Quantum-Si Incorporated | Optical and electrical secondary path rejection |
| CA3159371A1 (en) | 2019-10-31 | 2021-05-06 | Quantum-Si Incorporated | Pixel with enhanced drain |
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| JP2009200462A (ja) * | 2008-01-24 | 2009-09-03 | Sony Corp | 固体撮像装置およびその製造方法 |
| TWI393250B (zh) * | 2008-01-24 | 2013-04-11 | 新力股份有限公司 | 固態成像裝置及其製造方法 |
| US8564033B2 (en) | 2008-01-24 | 2013-10-22 | Sony Corporation | Solid-state imaging device and method for manufacturing the same |
| US9082898B2 (en) | 2008-01-24 | 2015-07-14 | Sony Corporation | Solid-state imaging device and method for manufacturing the same |
| JP2013092437A (ja) * | 2011-10-25 | 2013-05-16 | Tohoku Univ | 複数の電極を備えたicチップ |
| JPWO2021182175A1 (ja) * | 2020-03-11 | 2021-09-16 | ||
| WO2021182175A1 (ja) * | 2020-03-11 | 2021-09-16 | ソニーセミコンダクタソリューションズ株式会社 | 生体由来物質検出用センサ、生体由来物質検出装置及び生体由来物質検出システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5119534B2 (ja) | 2013-01-16 |
| US7968833B2 (en) | 2011-06-28 |
| EP2012114B1 (en) | 2014-05-07 |
| US20090166514A1 (en) | 2009-07-02 |
| EP2012114A4 (en) | 2012-06-20 |
| EP2012114A1 (en) | 2009-01-07 |
| JPWO2007129451A1 (ja) | 2009-09-17 |
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