JP2015156493A - Detection device manufacturing method and detection device and detection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detection device which can reduce the mixing of an organic material getting in the impurity semiconductor layer of a conversion element and also reduce the possibility of the electrode of the conversion element coming off.

SOLUTION: There is provided a manufacturing method for a detection device in which a plurality of pixels 11 are formed on a substrate 100, the pixels 11 each including a switch element 13 and a conversion element 12 which includes an impurity semiconductor layer 123 provided on an electrode 122, consisting of a transparent conductive oxide, which is disposed on the switch element 13, separated every pixel and joined to the switch element 13, and also included is an interlayer semiconductor layer 120, consisting of an organic material, which is provided between a plurality of switch elements 13 and a plurality of electrodes 122 so as to cover the plurality of switch elements 13. The manufacturing method comprises: a step of forming an insulation member 121, consisting of an inorganic material, which is disposed between the plurality of electrodes 122 abutting on the interlayer insulation layer 120 so as to cover the interlayer insulation layer 120; and a step of depositing an impurity semiconductor film 123' so as to cover the insulation member 121 and the plurality of electrodes 122.

COPYRIGHT: (C)2015,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a detection apparatus applied to a medical diagnostic imaging apparatus, a nondestructive inspection apparatus, an analysis apparatus using radiation, and the like, a detection apparatus thereof, and a detection system.

  In recent years, thin-film semiconductor manufacturing technology has been applied to detection devices having an array of pixels (pixel array) in which a switch element such as a TFT (thin film transistor) and a conversion element that converts radiation or light such as a photodiode into a charge are combined. It's being used.

  The conventional detection device shown in Patent Document 1 includes a conversion element provided on an electrode separated for each pixel made of a transparent conductive oxide disposed on a substrate. In addition, a switch element connected to the electrode through a contact hole provided in an interlayer insulating layer made of an organic material disposed between the substrate and the electrode. In the conversion element, the impurity semiconductor layer and the semiconductor layer are removed on the interlayer insulating layer, and the conversion element is separated for each pixel.

JP 2007-035773 A

  However, when the structure of Patent Document 1 is to be manufactured, there is a process in which an interlayer insulating layer is exposed when an impurity semiconductor film to be an impurity semiconductor layer of a conversion element is formed. In such a case, depending on the manufacturing method, the interlayer insulating layer is exposed when the impurity semiconductor film is formed. Therefore, part of the organic material for the interlayer insulating layer is scattered by the process during film formation and mixed into the impurity semiconductor layer. As a result, the impurity semiconductor layer of the conversion element is organically contaminated, and defects in the impurity semiconductor layer and defects between the impurity semiconductor layer and the semiconductor layer increase, resulting in an increase in dark current in the conversion element. is there.

  Therefore, in order to prevent the exposure of the interlayer insulating layer, it is conceivable to dispose an insulating layer made of an inorganic material so as to cover the interlayer insulating layer. However, in this case, the electrode of the conversion element made of a transparent conductive oxide is disposed on the insulating layer. This transparent conductive oxide is formed by forming a film in an amorphous state and then polycrystallizing. The transparent conductive oxide changes its internal stress during polycrystallization. An insulating layer made of an inorganic material has higher hardness and higher binding energy than an interlayer insulating layer made of an organic material, so that it cannot follow the internal stress when the transparent conductive oxide is polycrystallized. There may be a problem that the electrode of the conversion element peels from the layer.

  The present invention is intended to solve such a problem, and provides a detection device capable of reducing contamination of an organic material into an impurity semiconductor layer of a conversion element and reducing peeling of an electrode of the conversion element. For the purpose.

  The manufacturing method of the detection apparatus of the present invention includes a plurality of pixels on a substrate, and the pixels are arranged on the substrate, and the pixels are arranged on the switch elements and separated for each pixel. A conversion element including an impurity semiconductor layer provided on an electrode made of a transparent conductive oxide bonded to the switch element, and the substrate and the plurality of electrodes so as to cover the switch element A method of manufacturing a detection device having an interlayer insulating layer made of an organic material provided between the plurality of electrodes, the plurality of electrodes in contact with the interlayer insulating layer, and covering the interlayer insulating layer between the plurality of electrodes Forming an insulating member made of an inorganic material disposed on the interlayer insulating layer, and forming an impurity semiconductor film serving as the impurity semiconductor layer covering the insulating layer and the plurality of electrodes. Process and To.

  In addition, the detection device of the present invention has a plurality of pixels on a substrate, and the pixels are arranged on the substrate and the switch elements are arranged on the switch element and separated for each pixel. A conversion element including an impurity semiconductor layer provided on an electrode made of a transparent conductive oxide bonded to the switch element, and the substrate and the plurality of electrodes so as to cover the switch element A detection apparatus having an interlayer insulating layer made of an organic material provided therebetween, and covering the interlayer insulating layer between the plurality of electrodes disposed on the interlayer insulating layer in contact with the interlayer insulating layer As described above, an insulating member made of an inorganic material is disposed on the interlayer insulating layer, and the impurity semiconductor layer is formed so as to cover the insulating layer and the plurality of electrodes. Also separated on It is.

  According to the present invention, it is possible to provide a detection device that can reduce mixing of an organic material into an impurity semiconductor layer of a conversion element and reduce peeling of an electrode of the conversion element.

It is the top view per pixel of the detection apparatus which concerns on the 1st Embodiment of this invention, sectional drawing, and the enlarged view between pixels. It is the mask pattern and sectional drawing for demonstrating the manufacturing method of the detection apparatus which concerns on the 1st Embodiment of this invention. It is an equivalent circuit diagram of the detection apparatus of the present invention. It is sectional drawing per pixel of the detection apparatus which concerns on the 2nd Embodiment of this invention, and the enlarged view between pixels. It is the mask pattern and sectional drawing for demonstrating the manufacturing method of the detection apparatus which concerns on the 2nd Embodiment of this invention. It is sectional drawing per pixel of the detection apparatus which concerns on the 3rd Embodiment of this invention, and the enlarged view between pixels. It is a mask pattern and sectional drawing for demonstrating the manufacturing method of the detection apparatus which concerns on the 3rd Embodiment of this invention. It is sectional drawing per pixel of the detection apparatus which concerns on the 4th Embodiment of this invention, and the enlarged view between pixels. It is sectional drawing per pixel of the detection apparatus which concerns on the 5th Embodiment of this invention, and the enlarged view between pixels. It is a mask pattern and sectional drawing for demonstrating the manufacturing method of the detection apparatus which concerns on the 5th Embodiment of this invention. It is sectional drawing per pixel of the detection apparatus which concerns on the 6th Embodiment of this invention, and the enlarged view between pixels. It is the top view per pixel of the detection apparatus which concerns on the 7th Embodiment of this invention, and sectional drawing. It is a mask pattern and sectional drawing for demonstrating the manufacturing method of the detection apparatus which concerns on the 7th Embodiment of this invention. It is a conceptual diagram of the radiation detection system using the detection apparatus of this invention.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. In addition, in this specification, radiation is a beam having energy of the same degree or more, for example, X-rays, β-rays, γ-rays, etc., which are beams formed by particles (including photons) emitted by radiation decay, such as X Lines, particle beams, cosmic rays, etc. are also included.

(First embodiment)
First, the configuration of one pixel of the detection apparatus according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1A is a plan view per pixel. In FIG. 1, for the sake of simplicity, only the first electrode is shown for the conversion element. 1B is a cross-sectional view taken along the line AA ′ of FIG. 1A, FIG. 1C is an enlarged view of the pixel end portion (between pixels), and FIG. It is sectional drawing in BB 'of (a).

  One pixel 11 in the detection device of the present invention includes a conversion element 12 that converts radiation or light into electric charge, and a TFT (thin film transistor) 13 that is a switch element that outputs an electric signal corresponding to the electric charge of the conversion element 12. . The conversion element 12 uses a PIN photodiode. The conversion element 12 is laminated and disposed on the TFT 13 provided on an insulating substrate 100 such as a glass substrate with an interlayer insulating layer 120 interposed therebetween.

The TFT 13 includes a control electrode 131, an insulating layer 132, a semiconductor layer 133, an impurity semiconductor layer 134 having a higher impurity concentration than the semiconductor layer 133, and a first main electrode 135 on the substrate 100 in this order from the substrate side. , A second main electrode 136. The impurity semiconductor layer 134 is in contact with the first main electrode 135 and the second main electrode 136 in a partial region thereof, and a region between the regions of the semiconductor layer 133 in contact with the partial region is a channel region of the TFT. The control electrode 131 is electrically joined to the control wiring 15, the first main electrode 135 is electrically joined to the signal wiring 16, and the second main electrode 136 is electrically connected to the first electrode 122 of the conversion element 12. Are joined together.
In the present embodiment, the first main electrode 135, the second main electrode 136, and the signal wiring 16 are integrally formed of the same conductive layer, and the first main electrode 135 constitutes a part of the signal wiring 16. ing.
The protective layer 137 is provided so as to cover the TFT 13, the control wiring 15, and the signal wiring 16. In this embodiment, an inverted stagger type TFT using the semiconductor layer 133 and the impurity semiconductor layer 134, which are mainly made of amorphous silicon, is used as the switch element. However, the present invention is not limited to this. For example, a staggered TFT mainly composed of polycrystalline silicon, an organic TFT, an oxide TFT, or the like can be used.

  The interlayer insulating layer 120 is disposed between the substrate 100 and a plurality of first electrodes 122 described later so as to cover the plurality of TFTs 13, and has a contact hole. The first electrode 122 of the conversion element 12 and the second main electrode 136 of the TFT 13 are electrically joined in a contact hole provided in the interlayer insulating layer 120.

The conversion element 12 includes a first electrode 122, a first conductivity type impurity semiconductor layer 123, a semiconductor layer 124, and a second conductivity type impurity semiconductor layer on the interlayer insulation layer 120 in this order from the interlayer insulation layer side. 125 and the second electrode 126. Here, the first conductivity type impurity semiconductor layer 123 has a first conductivity type polarity, and has a higher concentration of the first conductivity type impurity than the semiconductor layer 124 and the second conductivity type impurity semiconductor layer 125. is there. In addition, the second conductivity type impurity semiconductor layer 125 has a second conductivity type polarity and has a higher concentration of the second conductivity type impurity than the first conductivity type impurity semiconductor layer 123 and the semiconductor layer 124. . The first conductivity type and the second conductivity type are conductivity types having different polarities. For example, if the first conductivity type is n-type, the second conductivity type is p-type.
The electrode wiring 14 is electrically joined to the second electrode 126 of the conversion element 12. The first electrode 122 of the conversion element 12 is electrically joined to the second main electrode 136 of the TFT 13 in a contact hole provided in the interlayer insulating layer 120. In the present embodiment, the photodiode using the first conductivity type impurity semiconductor layer 123, the semiconductor layer 124, and the second conductivity type impurity semiconductor layer 125, which is mainly made of amorphous silicon, is used. The invention is not limited to this. For example, an element that directly converts radiation into an electric charge using the first conductive type impurity semiconductor layer 123, the semiconductor layer 124, and the second conductive type impurity semiconductor layer 125 mainly containing amorphous selenium can be used. .

  An insulating layer 121 made of an inorganic material is disposed in contact with the interlayer insulating layer 120 between the plurality of first electrodes 122 on the interlayer insulating layer 120. The first electrode 122 and the insulating member 121 are disposed on the interlayer insulating layer 120 so as to cover the interlayer insulating layer 120. Therefore, when an impurity semiconductor film to be the impurity semiconductor layer 123 is formed, the interlayer insulating layer 120 is not exposed to the surface, and mixing of an organic material into the impurity semiconductor layer 123 can be reduced. In this embodiment, the impurity semiconductor layer 123, the semiconductor layer 124, and the impurity semiconductor layer 125 are separated for each pixel on the insulating member 121. In the dry etching process for the separation, since the insulating member 121 serves as an etching stopper layer, the interlayer insulating layer 120 can be prevented from being contaminated with organic materials without being exposed to dry etching species. It becomes.

  A transparent conductive oxide such as ITO is used for the first electrode 122. The transparent conductive oxide is characterized in that the etching rate is significantly higher in the amorphous state and the pattern controllability is higher than in the polycrystalline state. Therefore, as a method for forming a transparent conductive oxide, first, a method of first etching a transparent conductive oxide formed in an amorphous state and then polycrystallizing it by an annealing process is generally used. In this annealing step, since the internal stress of the transparent conductive oxide changes, the underlying film type in contact with the transparent conductive oxide is very important from the viewpoint of film adhesion. For example, when a transparent conductive oxide is disposed on an insulating layer made of an inorganic material having a high surface hardness and high binding energy, the insulating layer made of an inorganic material cannot follow the deformation due to a change in the internal stress of the ITO, The first electrode 122 may peel off. On the other hand, when a transparent conductive oxide is disposed on the interlayer insulating layer 120 made of an organic material having a low surface hardness and a low binding energy, the interlayer insulating layer 120 is more transparent than the insulating layer made of an inorganic material. It can follow the deformation caused by changes in internal stress. In addition, the energy of polycrystallization of the transparent conductive oxide allows the organic material to be re-joined with the polycrystallized transparent conductive oxide to cope with the change in stress. 122 peeling can be reduced. In the present embodiment, the first electrode 122 is provided with a width of 70 to 180 μm, and most of the first electrode 122 is disposed in contact with the interlayer insulating layer 120. Therefore, peeling of the first electrode 122 can be reduced. . In the present embodiment, the first electrode 122 has an end of about 5 μm disposed on the insulating member 121. In this case, the adhesion between the first electrode 122 and the insulating member 121 is low, but is very small compared to the width where the first electrode 122 and the interlayer insulating layer 120 are in contact with each other. The problem does not occur.

  A passivation layer 155 is provided so as to cover the conversion element 12.

  Next, a detection device manufacturing method according to the first embodiment of the present invention will be described with reference to FIG. In particular, the process of forming a contact hole in the interlayer insulating layer 120 will be described in detail using a mask pattern and a cross-sectional view during the process. 2 (a), (c), (e), (g), and (i) are schematic plan views of a mask pattern of a photomask used in each process. Further, (b), (d), (f), (h), and (j) in FIG. 2 are schematic cross-sectional views in the respective processes at positions corresponding to AA ′ in FIG. .

  First, a plurality of TFTs 13 are provided on the insulating substrate 100, and a protective layer 137 is provided so as to cover the plurality of TFTs 13. The protective layer 137 is provided with a contact hole by etching at a portion electrically connected to the photodiode on the second main electrode 136. In the step shown in FIG. 2B, an acrylic resin, which is a photosensitive organic material, is formed as an interlayer insulating film using a coating device such as a spinner so as to cover the TFT 13 and the protective layer 137. In addition, polyimide resin or the like can be used as the organic material having photosensitivity. Then, an interlayer insulating layer 120 having contact holes is formed by exposure and development using the mask shown in FIG.

Next, in the step shown in FIG. 2D, an insulating film made of a general inorganic material such as a silicon nitride film or silicon oxide is formed by plasma CVD so as to cover the interlayer insulating layer 120.
Then, the insulating film is etched using the mask shown in FIG. 2C to form the insulating member 121 between the pixels.

  Next, in the step shown in FIG. 2F, an amorphous transparent conductive oxide film made of ITO is formed by sputtering so as to cover the interlayer insulating layer 120 and the insulating member 121. Then, the transparent conductive oxide film is wet-etched using the mask shown in FIG. 2 (e), and polycrystallized by an annealing process to form the first electrode 122 of the conversion element. At this time, the surface of the interlayer insulating layer 120 is covered with the plurality of insulating members 121 and the plurality of first electrodes 122. Further, although the internal stress of the first electrode 122 increases due to this polycrystallization, since most of the first electrode 122 is formed in contact with the interlayer insulating layer 120, adhesion is maintained and the first electrode 122 is maintained. The problem of peeling does not occur. Here, ITO is used as the transparent conductive oxide, but ZnO, SnO2, ATO, AZO, CdIn2O4, MgIn2O4, ZnGa2O4, and InGaZnO4 are also preferably used. In addition, a transparent conductive oxide capable of taking an amorphous state such as a delafossite type containing Cu such as CuAlO 2 is also preferably used.

  Next, in the step shown in FIG. 2H, a pentavalent element such as phosphorus is mixed as an impurity as the first conductive type impurity semiconductor film 123 ′ so as to cover the insulating layer 121 and the first electrode 122. A crystalline silicon film is formed by a plasma CVD method. Next, a semiconductor film 124 ′ made of an amorphous silicon film and an amorphous silicon film in which a trivalent element such as boron is mixed as an impurity as the second conductivity type impurity semiconductor film 125 ′ are formed by plasma CVD. Films are formed in this order. When the impurity semiconductor film 123 ′ is formed, if the interlayer insulating layer 120 is not covered with the insulating member 121 and the first main electrode 122, the interlayer insulating layer 120 is exposed to plasma. When the interlayer insulating film 120 made of an organic material is exposed to the plasma, the organic material may be scattered and mixed into the impurity semiconductor film 123 ′. Therefore, in this embodiment, the interlayer insulating layer 120 is covered with the insulating member 121 and the first main electrode 122, and the interlayer insulating layer 120 is formed at the time of forming the impurity semiconductor film 123 ′ to be the first conductive type impurity semiconductor layer 123. The surface is not exposed. Accordingly, it is possible to prevent the organic material from being scattered and mixed into the first conductive type impurity semiconductor film. Next, a conductive film such as Al to be the electrode wiring 14 is formed by sputtering so as to cover the impurity semiconductor film 125 ′. Then, the conductive film is wet etched using the mask shown in FIG.

Next, in the step shown in FIG. 2J, a transparent conductive oxide film is formed by sputtering so as to cover the impurity semiconductor film 125 ′ and the electrode wiring. Next, the transparent conductive oxide film is wet-etched using the mask shown in FIG. 2I to form the second electrode 126 of the conversion element 12. Then, by using the same mask shown in FIG. 2I, the impurity semiconductor film 125 ′, the semiconductor film 124 ′, and the impurity semiconductor film 123 ′ are partially removed by dry etching, thereby converting the conversion element 12 for each pixel. Are separated. An impurity semiconductor layer 125, a semiconductor layer 124, and an impurity semiconductor layer 123 are formed in the separated conversion element 12.
Pixel separation by this dry etching is performed on the insulating member 121. Therefore, the insulating member 121 functions as an etching stopper layer, and the interlayer insulating layer 120 is not exposed to dry etching species, and contamination of each layer with an organic material can be prevented. The first electrode 122 is covered with the impurity semiconductor layer 123.
Therefore, the first electrode 122 and the semiconductor layer 124 are not directly connected to the Schottky junction. In the present embodiment, the transparent conductive oxide is used as the material of the second electrode 126. However, the present invention is not limited thereto, and any conductive film may be used. For example, when an element that directly converts radiation into electric charge is used as the conversion element, a conductive film that easily transmits radiation such as Al can be used.

  And the passivation layer 155 is formed so that the conversion element 12 and the insulating member 121 may be covered, and the structure shown in FIG.1 (b) is obtained. Even when the passivation layer 155 is formed, since the interlayer insulating layer 120 is not exposed, contamination of each layer with an organic material can be prevented.

  In the present embodiment, the element isolation of the conversion element 12 is performed for each pixel by dry etching in the step shown in FIG. 2J, but the electrode wiring 14 becomes an etching mask. Therefore, as shown in FIG. 1D, the impurity semiconductor film 125 ′, the semiconductor film 124 ′, and the impurity semiconductor film 123 ′ where the orthogonal projection of the electrode wiring 14 is located remain without being removed. Therefore, the impurity semiconductor layer 123 in the region where the orthogonal projection of the electrode wiring 14 is located is connected between the first electrodes 122 of adjacent pixels. Even in such a structure, when the resistance of the impurity semiconductor layer 123 is high enough to be regarded as an insulator, the impurity semiconductor layer 123 is electrically separated for each pixel and can be operated without any problem. . In order to obtain a sufficiently high impurity semiconductor layer 123, it is necessary to optimize the film thickness and doping amount.

  Next, a schematic equivalent circuit of the detection apparatus according to the first embodiment of the present invention will be described with reference to FIG. In FIG. 3, an equivalent circuit diagram of 3 rows and 3 columns is used for simplification of the description. However, the present invention is not limited to this, and the detection apparatus has n rows and m columns (n and m are both 2). A natural number) pixel array. In the detection apparatus according to this embodiment, a conversion unit 3 including a plurality of pixels 1 arranged in the row direction and the column direction is provided on the surface of the substrate 100. Each pixel 1 includes a conversion element 12 that converts radiation or light into an electric charge, and a TFT 13 that outputs an electric signal corresponding to the electric charge of the conversion element 12. A scintillator (not shown) that converts the wavelength of radiation into visible light may be disposed on the surface of the conversion element on the second electrode 126 side. The electrode wiring 14 is commonly connected to the second electrodes 126 of the plurality of conversion elements 12 arranged in the column direction. The control wiring 15 is commonly connected to the control electrodes 131 of the plurality of TFTs 13 arranged in the row direction, and is electrically connected to the drive circuit 2. The drive circuit 2 supplies drive pulses sequentially or simultaneously to a plurality of control wirings 15 arranged in the column direction, so that electric signals from the pixels are parallel to the plurality of signal wirings 16 arranged in the row direction. Is output. The signal wiring 16 is connected in common to the first main electrodes 135 of the plurality of TFTs 13 arranged in the column direction, and is electrically connected to the readout circuit 4. The readout circuit 4 includes, for each signal wiring 16, an integration amplifier 5 that integrates and amplifies the electrical signal from the signal wiring 16, and a sample hold circuit 6 that samples and holds the electrical signal amplified and output by the integration amplifier 5. Prepare. The readout circuit 4 further includes a multiplexer 7 that converts electrical signals output in parallel from the plurality of sample and hold circuits 6 into serial electrical signals, and an A / D converter 8 that converts the output electrical signals into digital data. Including. A reference potential Vref is supplied from the power supply circuit 9 to the non-inverting input terminal of the integrating amplifier 5. The power supply circuit 9 is further electrically connected to the plurality of electrode wirings 14 arranged in the row direction, and supplies a bias potential Vs to the second electrode 126 of the conversion element 12.

  Below, operation | movement of the detection apparatus of this embodiment is demonstrated. A reference potential Vref is applied to the first electrode 122 of the conversion element 12 via the TFT 13, and a bias potential Vs necessary for electron-hole pair separation generated by radiation or visible light is applied to the second electrode 125. In this state, radiation that has passed through the subject or visible light corresponding thereto enters the conversion element 12, is converted into electric charge, and is accumulated in the conversion element 12. The electric signal corresponding to the electric charge is output to the signal wiring 16 when the TFT 13 is turned on by the driving pulse applied from the driving circuit 2 to the control wiring 15, and is read out as digital data by the reading circuit 4. .

(Second Embodiment)
Next, the configuration of one pixel of the detection apparatus according to the first embodiment of the present invention will be described with reference to FIGS. 4A is a cross-sectional view taken along line AA ′ of FIG. 1A, FIG. 4B is an enlarged view of the pixel end portion (between pixels), and FIG. 4C is FIG. It is sectional drawing in BB 'of (a). Moreover, the same thing as what was demonstrated in 1st Embodiment is provided with the same number, and detailed description is omitted.

In the first embodiment, as shown in FIG. 1D, the impurity semiconductor layer 123 in the region where the orthogonal projection of the electrode wiring 14 is located is connected between the first electrodes 122 of adjacent pixels.
On the other hand, in this embodiment, the impurity semiconductor layer 123 is formed after the impurity semiconductor film 123 ′ is formed. Therefore, as shown in FIG. 4C, a pixel in which the impurity semiconductor layer 123 is separated between pixels can be obtained.

  Next, the manufacturing method of the detection apparatus in the 2nd Embodiment of this invention is demonstrated using FIG. 5A, 5C, and 5E are schematic plan views of a mask pattern of a photomask used in each process. FIGS. 5B, 5D, and 5F are schematic cross-sectional views in the respective processes at positions corresponding to A-A ′ in FIG. Detailed description of the same steps as those described in the first embodiment is omitted. In particular, the steps up to forming the first electrode 122 are the same as those described with reference to FIGS. 2A to 2F, and the subsequent steps will be described.

  First, in the step shown in FIG. 5B, an amorphous material in which a pentavalent element such as phosphorus is mixed as an impurity as the first conductivity type impurity semiconductor film 123 ′ so as to cover the insulating layer 121 and the first electrode 122. A quality silicon film is formed by plasma CVD. When forming the impurity semiconductor film 123 ′, if the interlayer insulating layer 120 is not covered with the insulating layer 121 and the first main electrode 122, the interlayer insulating layer 120 is exposed to plasma. When the interlayer insulating film 120 made of an organic material is exposed to the plasma, the organic material may be scattered and mixed into the impurity semiconductor film 123 ′. Therefore, in this embodiment, the interlayer insulating layer 120 is covered with the insulating layer 121 and the first main electrode 122, and the interlayer insulating layer 120 is formed at the time of forming the impurity semiconductor film 123 ′ that becomes the impurity semiconductor layer 123 of the first conductivity type. The surface is not exposed. Accordingly, it is possible to prevent the organic material from being scattered and mixed into the first conductive type impurity semiconductor film. Then, the impurity semiconductor film is dry-etched using the mask shown in FIG. Pixel separation by this dry etching is performed on the insulating layer 121. Therefore, the insulating layer 121 functions as an etching stopper layer, and the contamination of the impurity semiconductor layer 123 with an organic material can be prevented without exposing the interlayer insulating layer 120 to the dry etching species. The first electrode 122 is covered with the impurity semiconductor layer 123.

  Next, in the step shown in FIG. 5D, a semiconductor film 124 ′ made of an amorphous silicon film and an impurity semiconductor film 125 ′ of the second conductivity type so as to cover the insulating layer 121 and the impurity semiconductor layer 123. And an amorphous silicon film in which a trivalent element such as boron is mixed as an impurity is formed in this order by a plasma CVD method. Next, a conductive film such as Al to be the electrode wiring 14 is formed by sputtering so as to cover the impurity semiconductor film 125 ′. Then, the conductive film is wet etched using the mask shown in FIG. 5C to form the electrode wiring 14.

  Next, in the step shown in FIG. 5F, a transparent conductive oxide film is formed by a sputtering method so as to cover the impurity semiconductor film 125 ′ and the common electrode wiring 14. Next, the second electrode 126 of the conversion element 12 is formed by wet etching the transparent conductive oxide film using the mask shown in FIG. Then, by using the same mask shown in FIG. 5E, the impurity semiconductor film 125 ′ and the semiconductor film 124 ′ are removed by dry etching, so that the conversion element 12 is isolated for each pixel. An impurity semiconductor layer 125, a semiconductor layer 124, and an impurity semiconductor layer 123 are formed in the separated conversion element 12. Pixel separation by this dry etching is performed on the insulating layer 121. Therefore, the insulating layer 121 functions as an etching stopper layer, and the interlayer insulating layer 120 is not exposed to dry etching species, and contamination of each layer with an organic material can be prevented. In addition, since the first electrode 122 is covered with the impurity semiconductor layer 123, the first electrode 122 does not have a Schottky junction that directly joins the first electrode 122 and the semiconductor layer 124. In the present embodiment, the transparent conductive oxide is used as the material of the second electrode 126. However, the present invention is not limited thereto, and any conductive film may be used. For example, when an element that directly converts radiation into electric charge is used as the conversion element, a conductive film that easily transmits radiation such as Al can be used.

  And the passivation layer 155 is formed so that the conversion element 12 and the insulating layer 121 may be covered, and the structure shown to Fig.4 (a) and FIG.4 (c) is obtained. Even when the passivation layer 155 is formed, since the interlayer insulating layer 120 is not exposed, contamination of each layer with an organic material can be prevented.

  In this embodiment, the individual impurity semiconductor layer 123 is formed in the step shown in FIG. 5B using the mask shown in FIG. 5A. Instead, the impurity semiconductor film 123 ′ may be removed using a mask shown in FIG. The impurity semiconductor film 123 ′ shown in FIG. 5G is removed in advance, and the impurity semiconductor film 125 ′ and the semiconductor are removed using the mask shown in FIG. 5E in the step shown in FIG. The film 124 ′ and the impurity semiconductor film 123 ′ are removed by dry etching. Thereby, the conversion element 12 in which the impurity semiconductor layer 123 is separated for each pixel can be obtained. Further, by using the mask as shown in FIG. 5G, the area of the first impurity semiconductor layer 123 is almost determined only by dry etching in the process shown in FIG. For this reason, the area of the impurity semiconductor film 123 ′ is larger than that of using the mask of FIG. Can be increased.

(Third embodiment)
Next, the configuration of one pixel of the detection apparatus according to the third embodiment of the present invention will be described with reference to FIGS. 6 (a) to 6 (c). 6A is a cross-sectional view taken along line AA ′ of FIG. 1A, FIG. 6B is an enlarged view of the pixel end portion (between pixels), and FIG. 6C is FIG. It is sectional drawing in BB 'of (a). Moreover, the same thing as what was demonstrated in previous embodiment is provided with the same number, and detailed description is omitted.

  In the first embodiment, the end of the first electrode 122 is disposed on the insulating member 121, whereas in this embodiment, the end of the first electrode 122 is formed between the interlayer insulating layer 120 and the insulating member 121. Arranged between. With this configuration, the entire first electrode 122 made of a transparent conductive oxide is disposed only on the upper part of the interlayer insulating layer 120, and the adhesion between the interlayer insulating layer 120 and the first electrode 122 as compared with the first embodiment. Can be higher.

  Next, the manufacturing method of the detection apparatus in the 3rd Embodiment of this invention is demonstrated using FIG. In particular, the process from the formation of the interlayer insulating layer contact hole will be described in detail using a mask pattern and a cross-sectional view during the process. In addition, (a), (c), (e), (g), (i) of FIG. 7 is a schematic plan view of a mask pattern of a photomask used in each process. Further, (b), (d), (f), (h), and (j) in FIG. 7 are schematic cross-sectional views in the respective processes at positions corresponding to AA ′ in FIG. . Detailed description of the same steps as those described in the previous embodiment will be omitted.

  First, in the step shown in FIG. 7B, an acrylic resin, which is a photosensitive organic material, is formed as an interlayer insulating film so as to cover the TFT 13 and the protective layer 137. Then, an interlayer insulating layer 120 having contact holes is formed using the mask shown in FIG.

  Next, in the step shown in FIG. 7D, an amorphous transparent conductive oxide film made of ITO is formed by sputtering so as to cover the interlayer insulating layer 120. Then, using the mask shown in FIG. 7C, the transparent conductive oxide film is wet-etched and polycrystallized by annealing to form the first electrode 122 of the conversion element. Although the internal stress of the first electrode 122 increases due to this polycrystallization, since the entire first electrode 122 is formed in contact with the interlayer insulating layer 120, adhesion is maintained, and the first electrode 122 is peeled off. There is no problem.

  Next, in a step shown in FIG. 7F, an insulating film made of an inorganic material such as a silicon nitride film is formed by plasma CVD so as to cover the interlayer insulating layer 120 and the first electrode 122. Then, the insulating film is etched using the mask shown in FIG. 7E to form the insulating member 121 between the pixels. At this time, the surface of the interlayer insulating layer 120 is covered with the insulating member 121 and the first electrode 122.

  Next, in the step shown in FIG. 7H, a pentavalent element such as phosphorus is mixed as an impurity as the first conductivity type impurity semiconductor film 123 ′ so as to cover the insulating member 121 and the first electrode 122. A crystalline silicon film is formed by a plasma CVD method. Next, a semiconductor film 124 ′ made of an amorphous silicon film and an amorphous silicon film in which a trivalent element such as boron is mixed as an impurity as the second conductivity type impurity semiconductor film 125 ′ are formed by plasma CVD. Films are formed in this order. In the present embodiment, the interlayer insulating layer 120 is covered with the insulating member 121 and the first main electrode 122, and the surface of the interlayer insulating layer 120 is formed when the impurity semiconductor film 123 ′ to be the first conductivity type impurity semiconductor layer 123 is formed. The structure is not exposed. Accordingly, it is possible to prevent the organic material from being scattered and mixed into the first conductive type impurity semiconductor film. Next, a conductive film such as Al to be the electrode wiring 14 is formed by sputtering so as to cover the impurity semiconductor film 125 ′. Then, the conductive film is wet etched using the mask shown in FIG. 7G to form the electrode wiring 14.

  Next, in the step shown in FIG. 7J, a transparent conductive oxide film is formed by a sputtering method so as to cover the impurity semiconductor film 125 'and the electrode wiring. Next, the transparent conductive oxide is removed by wet etching using the mask shown in FIG. 7I to form the second electrode 126. Then, by using the same mask shown in FIG. 7I, the impurity semiconductor film 125 ′, the semiconductor film 124 ′, and the impurity semiconductor film 123 ′ are partially removed by dry etching, thereby converting the conversion element for each pixel. 12 is isolated. An impurity semiconductor layer 125, a semiconductor layer 124, and an impurity semiconductor layer 123 are formed in the separated conversion element 12. Pixel separation by this dry etching is performed on the insulating member 121. Therefore, the insulating member 121 functions as an etching stopper layer, and the interlayer insulating layer 120 is not exposed to dry etching species, and contamination of each layer with an organic material can be prevented.

  And the passivation layer 155 is formed so that the conversion element 12 and the insulating member 121 may be covered, and the structure shown to Fig.6 (a) is obtained. Even when the passivation layer 155 is formed, since the interlayer insulating layer 120 is not exposed, contamination of each layer with an organic material can be prevented.

  In this embodiment, the impurity semiconductor layer 123 in the region where the orthogonal projection of the electrode wiring 14 is located is connected between the first electrodes 122 of adjacent pixels. Even in such a structure, when the resistance of the impurity semiconductor layer 123 is high enough to be regarded as an insulator, the impurity semiconductor layer 123 is electrically separated for each pixel and can be operated without any problem. .

(Fourth embodiment)
Next, the configuration of one pixel of the detection apparatus according to the fourth embodiment of the present invention will be described. 8A is a cross-sectional view taken along line AA ′ of FIG. 1A, FIG. 8B is an enlarged view of the pixel end portion (between pixels), and FIG. 8C is FIG. It is sectional drawing in BB 'of (a). In addition, the same thing as what was demonstrated in 3rd Embodiment is provided with the same number, and detailed description is omitted.

In the third embodiment, as shown in FIG. 6C, the impurity semiconductor layer 123 in the region where the orthogonal projection of the electrode wiring 14 is located is connected between the first electrodes 122 of adjacent pixels.
On the other hand, in the present embodiment, as in the second embodiment, the impurity semiconductor layer 123 is formed after the impurity semiconductor film 123 ′ is formed. Therefore, as shown in FIG. 8C, a pixel in which the impurity semiconductor layer 123 is separated between pixels can be obtained.

  In the manufacturing method of the present embodiment, the process until the insulating member 121 is formed is the same as the process shown in FIGS. 7B, 7D, and 7F described in the third embodiment. The process for forming the impurity semiconductor layer 123 is the same as the process described in the second embodiment. Therefore, the detailed description of the manufacturing method in this embodiment is omitted.

(Fifth embodiment)
Next, the configuration of one pixel of the detection apparatus according to the third embodiment of the present invention will be described with reference to FIGS. 9A is a cross-sectional view taken along the line AA ′ in FIG. 1A, and FIG. 9B is an enlarged view of the pixel end portion (between pixels). FIG. 9C is an enlarged view showing another example of pixel end portions (between pixels). In addition, the same thing as what was demonstrated in previous embodiment attaches | subjects the same number, and omits detailed description.

  In the first embodiment, the semiconductor layer 124, the impurity semiconductor layer 125, and the second electrode 126 are separated for each pixel. On the other hand, in this embodiment, as shown in FIG. 9A, the semiconductor layer 124a, the impurity semiconductor layer 125a, and the second electrode 126a are not separated for each pixel. On the other hand, since the first electrode 122 and the impurity semiconductor layer 123 are separated for each pixel, the conversion element 12 is individualized for each first electrode 122. Therefore, in the configuration of the present embodiment, the aperture ratio can be increased as compared with the configuration of the first embodiment. Here, in order to further ensure individualization for each first electrode 122, as shown in FIG. 9C, the semiconductor layer 160 having a hydrogen concentration higher than that of the semiconductor layer 124a is separated from the insulating member 121 and impurities. It is preferable to provide a very thin thickness of about 5 nm so as to cover the semiconductor layer 123. Since the semiconductor layer 160 has a higher specific resistance than the semiconductor layer 124a and the impurity semiconductor layer 123, leakage between adjacent pixels can be reduced. Then, by setting the thickness of the semiconductor layer 160 to a thickness that allows a tunnel effect, charge can be transferred between the impurity semiconductor layer 123 and the semiconductor layer 124a, and the conversion element 12 can function as a photodiode. Further, since the second electrode 126a is not separated for each pixel, the electrode wiring 14 for reducing the aperture ratio may not be provided. However, when the resistance is high only with the second electrode 126a, it is more preferable to provide the electrode wiring 14. In that case, since the semiconductor layer 124a and the second electrode 126a are not separated for each pixel, the orthogonal projection of the electrode wiring 14 can be disposed at a position overlapping the insulating member 121, and the electrode wiring can be achieved without reducing the aperture ratio. 14 can be provided.

  Next, the manufacturing method of the detection apparatus in the 5th Embodiment of this invention is demonstrated using FIG. FIGS. 10A and 10C are schematic plan views of a mask pattern of a photomask used in each process. FIGS. 10B and 10D are schematic cross-sectional views in each step at a position corresponding to A-A ′ in FIG. Detailed description of the same steps as those described in the first embodiment is omitted. In particular, the steps up to forming the first electrode 122 are the same as those described with reference to FIGS. 2A to 2F, and the subsequent steps will be described.

  First, in the step shown in FIG. 10B, an amorphous material in which a pentavalent element such as phosphorus is mixed as an impurity as the first conductive type impurity semiconductor film 123 ′ so as to cover the insulating member 121 and the first electrode 122. A quality silicon film is formed by plasma CVD. In the present embodiment, the interlayer insulating layer 120 is covered with the insulating member 121 and the first main electrode 122, and the surface of the interlayer insulating layer 120 is formed when the impurity semiconductor film 123 ′ to be the first conductivity type impurity semiconductor layer 123 is formed. The structure is not exposed. Accordingly, it is possible to prevent the organic material from being scattered and mixed into the first conductive type impurity semiconductor film. Then, the impurity semiconductor layer 123 is formed by removing part of the impurity semiconductor film 123 ′ by dry etching using the mask shown in FIG. Pixel separation by this dry etching is performed on the insulating member 121. Therefore, the insulating member 121 functions as an etching stopper layer, and the contamination of the impurity semiconductor layer 123 with an organic material can be prevented without exposing the interlayer insulating layer 120 to the dry etching species.

Next, in the step shown in FIG. 10D, an amorphous silicon film to be the semiconductor layer 124a is formed by plasma CVD so as to cover the insulating member 121 and the impurity semiconductor layer 123.
Next, an amorphous silicon film in which a trivalent element such as boron that becomes the second conductivity type impurity semiconductor layer 125a is mixed as an impurity is formed by a plasma CVD method. Here, when the semiconductor layer 160 shown in FIG. 9C is provided, when the amorphous silicon film is formed, the hydrogen concentration is first increased to form the amorphous silicon film with a thickness of about 5 nm. Then, it is preferable to form an amorphous silicon film by lowering the hydrogen concentration. Next, a conductive film such as Al to be the electrode wiring 14 is formed by a sputtering method so as to cover the impurity semiconductor layer 125. Then, the conductive film is wet etched using the mask shown in FIG. 10C to form the electrode wiring 14.

  Next, a second electrode 126a made of a transparent conductive oxide is formed by a sputtering method so as to cover the impurity semiconductor film 125 'and the electrode wiring 14. Then, a passivation layer 155 is formed so as to cover the second electrode 126a, and the configuration shown in FIG. 9A is obtained.

(Sixth embodiment)
Next, the configuration of one pixel of the detection apparatus according to the fourth embodiment of the present invention will be described with reference to FIGS. 11 (a) and 11 (b). 11A is a cross-sectional view taken along the line AA ′ of FIG. 1A, and FIG. 11B is an enlarged view of the pixel end portion (between pixels). In addition, the same thing as what was demonstrated in previous embodiment attaches | subjects the same number, and omits detailed description.

  In the third embodiment, the semiconductor layer 124, the impurity semiconductor layer 125, and the second electrode 126 are separated for each pixel. On the other hand, in this embodiment, as shown in FIG. 11A, the semiconductor layer 124a, the impurity semiconductor layer 125a, and the second electrode 126a are not separated for each pixel. On the other hand, since the first electrode 122 and the impurity semiconductor layer 123 are separated for each pixel, the conversion element 12 is individualized for each first electrode 122. Therefore, in the configuration of the present embodiment, it is possible to increase the aperture ratio compared to the configuration of the second embodiment. Further, since the second electrode 126a is not separated for each pixel, the electrode wiring 14 for reducing the aperture ratio may not be provided. However, when the resistance is high only with the second electrode 126a, it is more preferable to provide the electrode wiring 14. In that case, since the semiconductor layer 124a and the second electrode 126a are not separated for each pixel, the orthogonal projection of the electrode wiring 14 can be disposed at a position overlapping the insulating member 121, and the electrode wiring can be achieved without reducing the aperture ratio. 14 can be provided.

  In the manufacturing method of the present embodiment, the steps until the insulating layer 121 is formed are the same as the steps shown in FIGS. 7B, 7D, and 7F described in the third embodiment. The steps for forming the impurity semiconductor layer 123 are the same as the steps described in the fifth embodiment. Therefore, the detailed description of the manufacturing method in this embodiment is omitted.

  (Seventh Embodiment) Next, the configuration of one pixel of a detection device according to a seventh embodiment of the present invention will be described with reference to FIGS. 12 (a) and 12 (b). 12A is a plan view per pixel, and FIG. 12B is a cross-sectional view taken along C-C ′ in FIG. In addition, the same thing as what was demonstrated by previous embodiment attaches | subjects the same number, and omits detailed description.

In the previous embodiment, the electrode wiring 14 is directly connected on the second electrode 126 of the conversion element 12. On the other hand, in the present embodiment, as shown in FIG. 12B, the electrode wiring 14 is electrically connected through the contact hole of the insulating layer 127 on the second electrode 126 and the interlayer insulating layer 128. With such a structure, the electrode wiring 14 can be formed after the conversion element 12 is formed first. In the second embodiment and the fourth embodiment, when the conversion element 12 is formed, the semiconductor layer 124 and the second impurity semiconductor film 125 are formed after forming the first conductivity type impurity semiconductor layer 123. The conversion elements are individualized in two processes.
On the other hand, in this embodiment, the impurity semiconductor film 123 ′, the semiconductor film 124 ′, and the impurity semiconductor film 125 ′ can be continuously formed, and continuously dry-etched, so that the conversion element can be individualized. Become. By forming the impurity semiconductor film 123 ′, the semiconductor film 124 ′, and the impurity semiconductor film 125 ′ in succession, the interface between the impurity semiconductor layer 123 and the semiconductor layer 124 and between the semiconductor layer 124 and the impurity semiconductor layer 125. It is possible to obtain a conversion element having a good crystal state.

  Next, the manufacturing method of the detection apparatus in the 7th Embodiment of this invention is demonstrated using FIG. 13A, 13C, 13E, 13G, and 13I are schematic plan views of a mask pattern of a photomask used in each process. FIGS. 13B, 13D, 13F, 13H, and 13J are schematic cross-sectional views in each step at a position corresponding to C-C 'in FIG. Detailed description of the same steps as those described in the previous embodiment will be omitted. In particular, the steps up to forming the first electrode 122 are the same as those described with reference to FIGS. 2A to 2F, and the subsequent steps will be described.

  First, in the step shown in FIG. 13B, an amorphous semiconductor in which a pentavalent element such as phosphorus is mixed as an impurity as the first conductive type impurity semiconductor film 123 ′ so as to cover the insulating layer 121 and the first electrode 122. A silicon film is formed by a plasma CVD method. Next, a semiconductor film 124 ′ made of an amorphous silicon film and an amorphous silicon film in which a trivalent element such as boron is mixed as an impurity as the second conductivity type impurity semiconductor film 125 ′ are formed by plasma CVD. Films are formed in this order. In the present embodiment, the interlayer insulating layer 120 is covered with the insulating layer 121 and the first main electrode 122, and the surface of the interlayer insulating layer 120 is formed when the impurity semiconductor film 123 ′ to be the first conductivity type impurity semiconductor layer 123 is formed. The structure is not exposed. Accordingly, it is possible to prevent the organic material from being scattered and mixed into the first conductive type impurity semiconductor film. Next, a transparent conductive oxide is formed by a sputtering method so as to cover the impurity semiconductor film 125 ′. Next, the transparent conductive oxide is wet etched using the mask shown in FIG. 13A to form the second electrode 126. Then, by using the same mask shown in FIG. 13A, the impurity semiconductor film 125 ′, the semiconductor film 124 ′, and the impurity semiconductor film 123 ′ are removed by dry etching, thereby converting the conversion element 12 into each element. To separate. An impurity semiconductor layer 125, a semiconductor layer 124, and an impurity semiconductor layer 123 are formed in the separated conversion element 12.

  Next, in the step shown in FIG. 13D, an insulating film made of an inorganic material such as a silicon nitride film is formed by plasma CVD so as to cover the conversion element 12 and the insulating layer 121. Even when the insulating film is formed, the interlayer insulating layer 120 is not exposed, so that contamination of each layer with an organic material can be prevented. Then, using the mask shown in FIG. 13C, the insulating film is dry-etched to form the insulating layer 127.

  Next, in a step illustrated in FIG. 13F, an acrylic resin that is a photosensitive organic material is formed as an interlayer insulating layer so as to cover the electrode 126 and the insulating layer 127. Then, an interlayer insulating layer 128 having a contact hole is formed using the mask shown in FIG.

  Next, in the step shown in FIG. 13H, a transparent conductive oxide film is formed by a sputtering method. Next, the conductive layer 129 is formed by wet etching the transparent conductive oxide using the mask shown in FIG.

  Next, in the step shown in FIG. 13J, a conductive film such as Al to be the electrode wiring 14 is formed by sputtering. Then, the conductive film is wet etched using the mask shown in FIG. Through this step, the electrode wiring 14 and the second electrode 126 of the conversion element 12 are electrically connected by the conductive layer 129. At this time, a decrease in the aperture ratio can be suppressed by forming the conductive layer 129 with a transparent conductive oxide.

  Then, a passivation layer 155 is formed so as to cover the electrode wiring 14, the conductive layer 129, and the interlayer insulating layer 128, and the configuration shown in FIG. 12B is obtained.

  In this embodiment, an example in which the structure between the pixels is the same as that in the second embodiment is shown. However, a structure similar to that in the fourth embodiment is not a problem. In this case, the cross-sectional view taken along C-C ′ in FIG. 12A has a structure as shown in FIG.

  Further, as shown in FIG. 12D, the electrode wiring 14 can be arranged between the pixels. In this case, since the electrode wiring 14 formed of Al or the like is disposed between the pixels, the electrode wiring 14 can be provided without reducing the aperture ratio. In addition, since the electrode wiring 14 also functions as a grid, the MTF can be increased. Further, since the bias potential Vs can be supplied not only from the vertical direction in the drawing but also from the left and right, it is possible to prevent the occurrence of image unevenness due to the bias potential supply delay.

(Application embodiment)
Next, a radiation detection system using the detection apparatus of the present invention will be described with reference to FIG.

  X-rays 6060 generated by an X-ray tube 6050 serving as a radiation source pass through the chest 6062 of the patient or subject 6061 and enter each conversion element 12 of the conversion unit 3 included in the radiation detection apparatus 6040. This incident X-ray includes information inside the body of the patient 6061. Corresponding to the incidence of X-rays, the conversion unit 3 converts the radiation into electric charges to obtain electrical information. This information is converted into digital data, image-processed by an image processor 6070 as a signal processing means, and can be observed on a display 6080 as a display means in a control room.

  Further, this information can be transferred to a remote place by transmission processing means such as a telephone line 6090, and can be displayed on a display 6081 serving as a display means such as a doctor room in another place or stored in a recording means such as an optical disk. It is also possible for a doctor to make a diagnosis. Moreover, it can also record on the film 6110 used as a recording medium by the film processor 6100 used as a recording means.

DESCRIPTION OF SYMBOLS 11 Pixel 12 Conversion element 13 Switch element 14 Electrode wiring 15 Control wiring 16 Signal wiring 100 Substrate 120 Interlayer insulating layer 121 Insulating member 122 First electrode 123 Impurity semiconductor layer of the first conductivity type 124 Semiconductor layer 125 Impurity semiconductor of the second conductivity type Layer 126 Second electrode 155 Protective layer

Method of manufacturing a detection device of the present invention includes a plurality of pixels on a substrate, the pixel includes a switching element disposed on the substrate, is separated before Symbol each pixel joined to the switching element An impurity semiconductor layer provided on the electrode and a conversion element including the semiconductor layer provided on the impurity semiconductor layer, and the impurity concentration of the impurity semiconductor layer is higher than the impurity concentration of the semiconductor layer. A method of manufacturing a detection device having an interlayer insulating layer made of an organic material provided between the substrate and the plurality of electrodes so as to cover the switch element , wherein the plurality of the insulating layers are in contact with the interlayer insulating layer A first step of forming an electrode and an insulating member made of an inorganic material disposed so as to cover the interlayer insulating layer between two adjacent electrodes among the plurality of electrodes;
After the first step, there is a second step of forming an impurity semiconductor film to be the impurity semiconductor layer that covers the insulating member and the plurality of electrodes.

The detection device of the present invention includes a plurality of pixels on a substrate, the pixel includes a switching element disposed on the substrate, which is separated prior Symbol each pixel joined to the switching element An impurity semiconductor layer provided on the electrode and a conversion element including the semiconductor layer provided on the impurity semiconductor layer , wherein the impurity concentration of the impurity semiconductor layer is higher than the impurity concentration of the semiconductor layer , a detection device including an interlayer insulating layer made of an organic material disposed between the plurality of the switching elements and a plurality of the electrodes so as to cover a plurality of the switching element, the contact with the interlayer insulating layer An insulating member made of an inorganic material disposed on the interlayer insulating layer so as to cover the interlayer insulating layer between two adjacent electrodes among the plurality of electrodes disposed on the interlayer insulating layer; The impure End portion of the semiconductor layer, in which the positioned to overlie the insulating member.

Claims (12)

A plurality of pixels on a substrate, wherein the pixels are disposed on the substrate, and a transparent conductive element disposed on the switch element and separated for each pixel and joined to the switch element A conversion element including an impurity semiconductor layer provided on an electrode made of a conductive oxide, and made of an organic material provided between the substrate and the plurality of electrodes so as to cover the switch element A method of manufacturing a detection device having an interlayer insulating layer,
A first step of forming a plurality of the electrodes in contact with the interlayer insulating layer, and an insulating member made of an inorganic material disposed so as to cover the interlayer insulating layer between the plurality of electrodes;
A second step of forming an impurity semiconductor film to be the impurity semiconductor layer, covering the insulating member and the plurality of electrodes;
A method of manufacturing a detection device having   The first step includes forming an insulating film made of an inorganic material so as to cover the interlayer insulating layer, forming the insulating member from the insulating film, and covering the interlayer insulating layer and the insulating member. The method for producing a detection device according to claim 1, further comprising: forming a transparent conductive oxide film on the substrate and forming the electrode from the transparent conductive oxide film.   The first step includes forming a transparent conductive oxide film so as to cover the interlayer insulating layer, forming the electrode from the transparent conductive oxide film, and forming the interlayer insulating layer and the electrode. The manufacturing method of the detection apparatus of Claim 1 which forms the insulating film which consists of inorganic materials so that it may cover, and forms the said insulating member from the said insulating film.   4. The method for manufacturing a detection device according to claim 1, further comprising a third step of forming a part of the impurity semiconductor film by removing a part of the impurity semiconductor film on the insulating layer. 5.   The method of manufacturing a detection device according to claim 4, wherein the second step further includes a step of forming a semiconductor film so as to cover the impurity semiconductor film.   The third step removes a part of the impurity semiconductor film and a part of the semiconductor film on the insulating layer, and converts the impurity semiconductor layer from the impurity semiconductor film to the conversion from the semiconductor film. The method for manufacturing a detection device according to claim 5, wherein the semiconductor layers of the elements are formed.   The method of manufacturing a detection device according to claim 4, wherein the third step further includes a step of forming a semiconductor film so as to cover the impurity semiconductor layer.   In the third step, the impurity semiconductor film and the semiconductor film are removed on the insulating member, the impurity semiconductor layer from the impurity semiconductor film, the semiconductor layer of the conversion element from the semiconductor film, The method for manufacturing a detection device according to claim 7, wherein each is a step of forming.   The method for manufacturing a detection device according to claim 7, further comprising a step of forming a semiconductor film having a hydrogen concentration higher than that of the semiconductor film before forming the semiconductor film.   A step of forming an impurity semiconductor film having a conductivity type different from that of the impurity semiconductor film so as to cover the semiconductor film, and another conversion element different from the electrode so as to cover the impurity semiconductor film of different conductivity type The manufacturing method according to claim 8 or 9, further comprising a step of forming a conductive film to be an electrode and a step of forming an orthogonal projection of an electrode wiring to be bonded to the conductive film at a position overlapping the insulating member. A plurality of pixels on a substrate, wherein the pixels are disposed on the substrate, and a transparent conductive element disposed on the switch element and separated for each pixel and joined to the switch element A conversion element including an impurity semiconductor layer provided on an electrode made of a conductive oxide, and provided between the plurality of switch elements and the plurality of electrodes so as to cover the plurality of switch elements. A detector having an interlayer insulating layer made of organic material,
An insulating member made of an inorganic material is disposed on the interlayer insulating layer so as to cover the interlayer insulating layer between the plurality of electrodes disposed on the interlayer insulating layer in contact with the interlayer insulating layer. And
The detection device, wherein the impurity semiconductor layer is formed by separating an impurity semiconductor film formed to cover the insulating member and the plurality of electrodes on the insulating member. A detection device according to claim 11,
Signal processing means for processing a signal from the detection device;
Recording means for recording a signal from the signal processing means;
Display means for displaying a signal from the signal processing means;
Transmission processing means for transmitting a signal from the signal processing means;
A detection system comprising:

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