JP4702720B2 - フォトトランジスタ - Google Patents
フォトトランジスタ Download PDFInfo
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- JP4702720B2 JP4702720B2 JP2006550429A JP2006550429A JP4702720B2 JP 4702720 B2 JP4702720 B2 JP 4702720B2 JP 2006550429 A JP2006550429 A JP 2006550429A JP 2006550429 A JP2006550429 A JP 2006550429A JP 4702720 B2 JP4702720 B2 JP 4702720B2
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- 230000004888 barrier function Effects 0.000 claims abstract description 92
- 239000004065 semiconductor Substances 0.000 claims description 31
- 239000012535 impurity Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 10
- 239000010409 thin film Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 79
- 238000010586 diagram Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 108091006149 Electron carriers Proteins 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/08—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
- H01L31/10—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
- H01L31/101—Devices sensitive to infrared, visible or ultraviolet radiation
- H01L31/112—Devices sensitive to infrared, visible or ultraviolet radiation characterised by field-effect operation, e.g. junction field-effect phototransistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78651—Silicon transistors
- H01L29/7866—Non-monocrystalline silicon transistors
- H01L29/78672—Polycrystalline or microcrystalline silicon transistor
- H01L29/78678—Polycrystalline or microcrystalline silicon transistor with inverted-type structure, e.g. with bottom gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41733—Source or drain electrodes for field effect devices for thin film transistors with insulated gate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
- H01L29/456—Ohmic electrodes on silicon
- H01L29/458—Ohmic electrodes on silicon for thin film silicon, e.g. source or drain electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/08—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors
- H01L31/10—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
- H01L31/101—Devices sensitive to infrared, visible or ultraviolet radiation
- H01L31/112—Devices sensitive to infrared, visible or ultraviolet radiation characterised by field-effect operation, e.g. junction field-effect phototransistor
- H01L31/113—Devices sensitive to infrared, visible or ultraviolet radiation characterised by field-effect operation, e.g. junction field-effect phototransistor being of the conductor-insulator-semiconductor type, e.g. metal-insulator-semiconductor field-effect transistor
- H01L31/1136—Devices sensitive to infrared, visible or ultraviolet radiation characterised by field-effect operation, e.g. junction field-effect phototransistor being of the conductor-insulator-semiconductor type, e.g. metal-insulator-semiconductor field-effect transistor the device being a metal-insulator-semiconductor field-effect transistor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Light Receiving Elements (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Photoreceptors In Electrophotography (AREA)
- Holo Graphy (AREA)
Description
感光性の半導体層と、
光活性層の下又は上に前記半導体層の活性領域に沿って延在する障壁層と、
前記障壁層の上又は下の前記半導体層の前記活性領域から水平方向に離隔されたドレイン領域と、
前記ドレイン領域に接続されたドレイン端子と、
前記障壁層の、前記光活性層とは逆の側におけるソース層と、
前記半導体の感光層の、前記障壁層とは反対の側におけるゲート層であって、前記ソース層と前記活性領域との間の電子及び正孔の導通を制御するために、前記障壁層の障壁高を制御するために前記障壁層に水平方向に重なるゲート層と、
前記ゲート層と前記半導体層との間のゲート絶縁層と、
を有するフォトトランジスタであって、この構造により、前記フォトトランジスタへの入射光が前記活性領域に到達し、前記活性領域に電子−正孔対を形成し、前記障壁に蓄積された正孔が実効障壁高を変化させ、それ故前記ソースとドレインとの間を前記活性領域を通って電流が流れるようにされたフォトトランジスタが提供される。
(a)前記光活性層に蓄積された正孔が前記ソース接点領域へとインジェクトされるように前記ゲートに正のリセットパルスを印加するステップと、
(b)フレーム周期の間、前記ゲートにフレームゲート電圧を印加するステップであって、前記フレームゲート電圧は、照射によって前記活性領域に生成されたいずれの電子もが前記障壁を通過するが、照射によって前記活性領域に生成されたいずれの正孔もが前記障壁における光活性領域において蓄積され、これにより電子に対する前記障壁の影響を実質的に低下させ電子の流れを増大させるようにするステップと、
(c)前記照射の尺度としてソース−ドレイン電流を読み取るステップと、
によって動作させる方法に関する。
Claims (11)
- 感光性の半導体層と、
前記半導体層の下又は上に前記半導体層の活性領域に沿って延在する障壁層と、
前記半導体層の前記活性領域から水平方向に離隔されたドレイン領域と、
前記ドレイン領域に接続されたドレイン端子と、
前記障壁層の、前記半導体層とは逆の側におけるソース層と、
前記半導体層の、前記障壁層とは反対の側におけるゲート層であって、前記ソース層と前記活性領域との間の電子及び正孔の導通を制御するために、前記障壁層の障壁高を制御するために前記障壁層に水平方向に重なるゲート層と、
前記ゲート層と前記半導体層との間のゲート絶縁層と、
を有するフォトトランジスタであって、この構造により、前記フォトトランジスタへの入射光が前記活性領域に到達し、前記活性領域に電子−正孔対を形成し、前記障壁に蓄積された正孔が実効障壁高を変化させ、それ故前記ソース層とドレイン領域との間を前記活性領域を通って電流が流れるようにされたフォトトランジスタ。 - 前記ソース層は、第1の伝導性のタイプを持つように不純物をドープされた半導体のものであり、前記障壁層は、第1の伝導性のタイプと反対の第2の伝導性のタイプを持つように不純物をドープされた半導体層である、請求項1に記載のフォトトランジスタ。
- 前記ソース層に接続された透明なソース電極を更に有する、請求項2に記載のフォトトランジスタ。
- 前記障壁層は絶縁障壁層である、請求項1に記載のフォトトランジスタ。
- 前記ソース層は透明なソース電極である、請求項4に記載のフォトトランジスタ。
- 前記半導体層は不純物をドープされたアモルファスシリコンのものである、請求項1乃至5のいずれか一項に記載のフォトトランジスタ。
- 前記障壁の電子に対する実効障壁高は、バンドギャップの半分よりも大きい、請求項1乃至6のいずれか一項に記載のフォトトランジスタ。
- 単一の基板の上に配置された請求項1乃至7のいずれか一項に記載のフォトトランジスタのアレイを有するフォトトランジスタアレイ。
- 前記基板上に薄膜電極を更に有する、請求項8に記載のフォトトランジスタアレイ。
- 請求項1乃至7のいずれか一項に記載のフォトトランジスタの操作の方法であって、前記方法は、
(a)前記障壁に蓄積された正孔が前記ソース層へと通り抜けるように前記ゲートに正のリセットパルスを印加するステップと、
(b)フレーム周期の間、前記ゲートにフレームゲート電圧を印加するステップと、を有し、前記フレームゲート電圧は、照射によって前記活性領域に生成されたいずれの電子もが前記障壁を通過するが、照射によって前記活性領域に生成されたいずれの正孔もが前記障壁において蓄積され、これにより電子に対する前記障壁の実効高を低下させるようにし、前記方法は更に、
(c)前記照射の尺度としてソース−ドレイン電流を読み取るステップと、
を有する方法。 - 一連のフレーム周期に亘って前記照射を測定するため前記ステップ(a)乃至(c)を繰り返すステップを有する、請求項10に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0401578.0 | 2004-01-24 | ||
GBGB0401578.0A GB0401578D0 (en) | 2004-01-24 | 2004-01-24 | Phototransistor |
PCT/IB2005/050248 WO2005071758A2 (en) | 2004-01-24 | 2005-01-21 | Phototransistor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007519250A JP2007519250A (ja) | 2007-07-12 |
JP4702720B2 true JP4702720B2 (ja) | 2011-06-15 |
Family
ID=31971405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006550429A Expired - Fee Related JP4702720B2 (ja) | 2004-01-24 | 2005-01-21 | フォトトランジスタ |
Country Status (9)
Country | Link |
---|---|
US (2) | US7723667B2 (ja) |
EP (1) | EP1711968B1 (ja) |
JP (1) | JP4702720B2 (ja) |
KR (1) | KR101116412B1 (ja) |
CN (1) | CN100505332C (ja) |
AT (1) | ATE402490T1 (ja) |
DE (1) | DE602005008376D1 (ja) |
GB (1) | GB0401578D0 (ja) |
WO (1) | WO2005071758A2 (ja) |
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GB0014961D0 (en) * | 2000-06-20 | 2000-08-09 | Koninkl Philips Electronics Nv | Light-emitting matrix array display devices with light sensing elements |
JP2003187593A (ja) | 2001-12-19 | 2003-07-04 | Toshiba Corp | 半導体装置及び不揮発性半導体記憶装置 |
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2004
- 2004-01-24 GB GBGB0401578.0A patent/GB0401578D0/en not_active Ceased
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2005
- 2005-01-21 US US10/586,807 patent/US7723667B2/en not_active Expired - Fee Related
- 2005-01-21 AT AT05702742T patent/ATE402490T1/de not_active IP Right Cessation
- 2005-01-21 CN CNB2005800028862A patent/CN100505332C/zh not_active Expired - Fee Related
- 2005-01-21 DE DE602005008376T patent/DE602005008376D1/de active Active
- 2005-01-21 KR KR1020067014885A patent/KR101116412B1/ko not_active IP Right Cessation
- 2005-01-21 WO PCT/IB2005/050248 patent/WO2005071758A2/en active IP Right Grant
- 2005-01-21 EP EP05702742A patent/EP1711968B1/en not_active Not-in-force
- 2005-01-21 JP JP2006550429A patent/JP4702720B2/ja not_active Expired - Fee Related
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2010
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JPS5723280A (en) * | 1980-07-18 | 1982-02-06 | Nippon Telegr & Teleph Corp <Ntt> | Field effect type light detector |
JPS60160162A (ja) * | 1984-01-30 | 1985-08-21 | Matsushita Electric Ind Co Ltd | 固体撮像装置 |
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JPH08204223A (ja) * | 1995-01-20 | 1996-08-09 | Casio Comput Co Ltd | 光電変換素子の駆動方法 |
JP2003530693A (ja) * | 2000-04-07 | 2003-10-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 薄膜フィルムトランジスタを具えた電子デバイスの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US7723667B2 (en) | 2010-05-25 |
WO2005071758A3 (en) | 2005-10-27 |
DE602005008376D1 (de) | 2008-09-04 |
US7982178B2 (en) | 2011-07-19 |
GB0401578D0 (en) | 2004-02-25 |
JP2007519250A (ja) | 2007-07-12 |
CN100505332C (zh) | 2009-06-24 |
KR101116412B1 (ko) | 2012-04-12 |
WO2005071758A2 (en) | 2005-08-04 |
US20100182596A1 (en) | 2010-07-22 |
KR20070004589A (ko) | 2007-01-09 |
CN1910760A (zh) | 2007-02-07 |
ATE402490T1 (de) | 2008-08-15 |
EP1711968B1 (en) | 2008-07-23 |
EP1711968A2 (en) | 2006-10-18 |
US20090206237A1 (en) | 2009-08-20 |
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