JP4433405B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4433405B2 JP4433405B2 JP2005014510A JP2005014510A JP4433405B2 JP 4433405 B2 JP4433405 B2 JP 4433405B2 JP 2005014510 A JP2005014510 A JP 2005014510A JP 2005014510 A JP2005014510 A JP 2005014510A JP 4433405 B2 JP4433405 B2 JP 4433405B2
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- 239000004065 semiconductor Substances 0.000 title claims description 146
- 238000004519 manufacturing process Methods 0.000 title claims description 39
- 239000000758 substrate Substances 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 43
- 238000005530 etching Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000010408 film Substances 0.000 description 247
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 25
- 229910052814 silicon oxide Inorganic materials 0.000 description 22
- 229920002120 photoresistant polymer Polymers 0.000 description 21
- 230000015572 biosynthetic process Effects 0.000 description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 12
- 239000010409 thin film Substances 0.000 description 11
- 239000011159 matrix material Substances 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000007790 solid phase Substances 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005224 laser annealing Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WTKKCYNZRWIVKL-UHFFFAOYSA-N tantalum Chemical compound [Ta+5] WTKKCYNZRWIVKL-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78633—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device with a light shield
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66742—Thin film unipolar transistors
- H01L29/6675—Amorphous silicon or polysilicon transistors
- H01L29/66757—Lateral single gate single channel transistors with non-inverted structure, i.e. the channel layer is formed before the gate
Description
まず、図3(A)に示すように、基板10に遮光膜12’を形成する。遮光膜12’としては、例えば、スパッタリング等の方法により形成された、Ti、Cr、W、Ta、Mo及びPd等を含む金属膜、或いは金属シリサイド等の金属合金膜を用いることができる。遮光膜の厚さは特に限定されないが、例えば100nm〜500nmくらいとする。
次に、再度図1を参照して、半導体素子形成工程を説明する。
図5に、本発明に係る液晶装置の例として液晶表示装置100を示す。
図6は、本発明に係る電子機器の例を示す図である。本発明に係る電子機器は、上述のようにTFTを形成して得られた、本発明に係る半導体装置であるアクティブマトリクス基板を備えることを特徴とする。
Claims (4)
- 基板上に遮光膜を形成し、前記遮光膜上に、前記遮光膜側の面積が前記遮光膜とは反対側の面積よりも小さくテーパー状の側壁を有する、複数の島状のエッチングマスクを形成し、前記エッチングマスクを介して前記基板表面が露出するまで前記遮光膜をエッチングすることにより、前記基板上に島状の遮光膜を複数形成する工程と、
露出した前記基板表面および前記エッチングマスク上に第1の絶縁膜を形成する工程と、
前記エッチングマスクを除去する工程と、
前記複数の遮光膜および前記第1の絶縁膜上に第2の絶縁膜を形成する工程と、
前記第2の絶縁膜を隔てて前記遮光膜の上方に半導体素子を形成する工程と、を含み、
かつ、
前記遮光膜の上方に半導体素子を形成する工程が、
前記遮光膜の上方に半導体膜を形成する工程と、
熱処理によって前記半導体膜を改質する工程と、を含み、さらに、
前記半導体膜を改質する工程が、熱処理によって前記半導体膜を溶融結晶化する工程で
ある、半導体装置の製造方法。 - 基板上に第1の絶縁膜を形成する工程と、
前記第1の絶縁膜上に、前記第1の絶縁膜側の面積が前記第1の絶縁膜とは反対側の面積よりも小さくテーパー状の側壁を有する、複数の島状の開口を有するエッチングマスクを形成する工程と、
前記エッチングマスクを介して、前記第1の絶縁膜をエッチングして溝を形成する工程と、
前記複数の島状の溝に遮光膜を形成する工程と、
前記エッチングマスクを除去する工程と、
前記複数の遮光膜および前記第1の絶縁膜上に第2の絶縁膜を形成する工程と、
前記第2の絶縁膜を隔てて前記遮光膜の上方に半導体素子を形成する工程と、を含み、
かつ、
前記遮光膜の上方に半導体素子を形成する工程が、
前記遮光膜の上方に半導体膜を形成する工程と、
熱処理によって前記半導体膜を改質する工程と、を含み、さらに、
前記半導体膜を改質する工程が、熱処理によって前記半導体膜を溶融結晶化する工程である、半導体装置の製造方法。 - 請求項1または2に記載の半導体装置の製造方法であって、
前記第2の絶縁膜を形成する工程の前に、前記第1の絶縁膜表面と前記遮光膜表面とを略平坦にする工程をさらに含むこと、
を特徴とする、半導体装置の製造方法。 - 請求項1または2に記載の半導体装置の製造方法であって、
前記熱処理が、前記半導体膜にレーザ光を照射することによって行われること、
を特徴とする、半導体装置の製造方法。
Priority Applications (2)
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JP2005014510A JP4433405B2 (ja) | 2005-01-21 | 2005-01-21 | 半導体装置の製造方法 |
US11/296,386 US7804096B2 (en) | 2005-01-21 | 2005-12-08 | Semiconductor device comprising planarized light-shielding island films for thin-film transistors |
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JP2005014510A JP4433405B2 (ja) | 2005-01-21 | 2005-01-21 | 半導体装置の製造方法 |
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JP2006203065A JP2006203065A (ja) | 2006-08-03 |
JP4433405B2 true JP4433405B2 (ja) | 2010-03-17 |
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US (1) | US7804096B2 (ja) |
JP (1) | JP4433405B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008153354A (ja) * | 2006-12-15 | 2008-07-03 | Sony Corp | 有機半導体パターンの形成方法および半導体装置の製造方法 |
WO2010064343A1 (ja) * | 2008-12-05 | 2010-06-10 | シャープ株式会社 | 半導体装置及びその製造方法 |
EP2506303A4 (en) * | 2009-11-27 | 2017-11-22 | Sharp Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
WO2011077925A1 (en) * | 2009-12-25 | 2011-06-30 | Semiconductor Energy Laboratory Co., Ltd. | Method for driving liquid crystal display device |
US9230994B2 (en) | 2010-09-15 | 2016-01-05 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device |
TWI515911B (zh) * | 2012-06-07 | 2016-01-01 | 群創光電股份有限公司 | 薄膜電晶體基板及其製作方法以及顯示器 |
JP2014032399A (ja) | 2012-07-13 | 2014-02-20 | Semiconductor Energy Lab Co Ltd | 液晶表示装置 |
KR20140013931A (ko) | 2012-07-26 | 2014-02-05 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 액정 표시 장치 |
WO2014084153A1 (en) | 2012-11-28 | 2014-06-05 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
US9594281B2 (en) | 2012-11-30 | 2017-03-14 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device |
US20190035906A1 (en) * | 2016-01-27 | 2019-01-31 | National Institute Of Advanced Industrial Science And Technology | Field Effect Transistor and Method for Manufacturing Same |
CN109192661B (zh) * | 2018-08-28 | 2021-10-12 | 合肥鑫晟光电科技有限公司 | 薄膜晶体管及其制备方法、阵列基板和显示面板 |
CN112701145A (zh) * | 2020-12-22 | 2021-04-23 | Oppo(重庆)智能科技有限公司 | 有机电致发光二极管显示面板及其制备方法、电子设备 |
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JPH0777264B2 (ja) * | 1986-04-02 | 1995-08-16 | 三菱電機株式会社 | 薄膜トランジスタの製造方法 |
JP4050377B2 (ja) | 1997-10-31 | 2008-02-20 | セイコーエプソン株式会社 | 液晶装置及び電子機器並びに投射型表示装置 |
JP2000077668A (ja) | 1998-08-31 | 2000-03-14 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
JP3332005B2 (ja) | 1999-04-06 | 2002-10-07 | 日本電気株式会社 | 半導体装置の製造方法 |
TWI301915B (ja) * | 2000-03-17 | 2008-10-11 | Seiko Epson Corp | |
JP4701487B2 (ja) | 2000-09-22 | 2011-06-15 | セイコーエプソン株式会社 | 電気光学装置用基板の製造方法 |
US6661025B2 (en) | 2000-09-22 | 2003-12-09 | Seiko Epson Corporation | Method of manufacturing electro-optical apparatus substrate, electro-optical apparatus substrate, electro-optical apparatus and electronic apparatus |
JP3638926B2 (ja) | 2001-09-10 | 2005-04-13 | 株式会社半導体エネルギー研究所 | 発光装置及び半導体装置の作製方法 |
US7317205B2 (en) | 2001-09-10 | 2008-01-08 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and method of manufacturing a semiconductor device |
JP2004343018A (ja) | 2003-03-20 | 2004-12-02 | Fujitsu Ltd | 半導体装置及びその製造方法 |
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- 2005-01-21 JP JP2005014510A patent/JP4433405B2/ja active Active
- 2005-12-08 US US11/296,386 patent/US7804096B2/en active Active
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US20060163583A1 (en) | 2006-07-27 |
JP2006203065A (ja) | 2006-08-03 |
US7804096B2 (en) | 2010-09-28 |
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