KR20080065446A - 박막트랜지스터, 그의 제조방법 및 이를 포함하는평판표시장치 - Google Patents
박막트랜지스터, 그의 제조방법 및 이를 포함하는평판표시장치 Download PDFInfo
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- KR20080065446A KR20080065446A KR1020070002594A KR20070002594A KR20080065446A KR 20080065446 A KR20080065446 A KR 20080065446A KR 1020070002594 A KR1020070002594 A KR 1020070002594A KR 20070002594 A KR20070002594 A KR 20070002594A KR 20080065446 A KR20080065446 A KR 20080065446A
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000010409 thin film Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000010410 layer Substances 0.000 claims abstract description 138
- 239000004065 semiconductor Substances 0.000 claims abstract description 53
- 239000000758 substrate Substances 0.000 claims abstract description 49
- 239000011229 interlayer Substances 0.000 claims abstract description 40
- 239000010408 film Substances 0.000 claims description 88
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 16
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- 230000000052 comparative effect Effects 0.000 description 16
- 229910052782 aluminium Inorganic materials 0.000 description 11
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- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 description 1
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- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01L29/78606—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
- H01L29/78618—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 characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
- H01L29/78621—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 characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile
-
- 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
- H01L29/78675—Polycrystalline or microcrystalline silicon transistor with normal-type structure, e.g. with top gate
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- 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
- H01L29/66007—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
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- 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
- H01L29/78606—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
- H01L29/78618—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 characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
- H01L29/78621—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 characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile
- H01L2029/7863—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 characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile with an LDD consisting of more than one lightly doped zone or having a non-homogeneous dopant distribution, e.g. graded LDD
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- Thin Film Transistor (AREA)
Abstract
Description
저항값(단위:Ω) | |
<실시예1> | 10,551.72 |
<실시예2> | 14,551.72 |
<실시예3> | 18,551.72 |
<실시예4> | 22,551.72 |
<실시예5> | 26,551.72 |
<실시예6> | 30,551.72 |
<비교예1> | 4,0551.72 |
<비교예2> | 42,051.72 |
Claims (22)
- 기판;상기 기판 상에 위치하고, 소오스/드레인 영역, 상기 소오스/드레인 영역보다 작은 크기를 갖는 고저항 영역, 채널 영역 및 상기 고저항 영역과 상기 채널영역 사이에 위치하는 연결영역을 포함하는 반도체층;상기 반도체층 상에 위치하는 게이트 절연막;상기 채널영역과 대응되는 상기 게이트 절연막 상에 위치하는 게이트 전극;상기 게이트 전극 상에 위치하는 층간절연막; 및상기 층간절연막 상에 위치하고, 상기 소오스/드레인 영역과 전기적으로 연결되는 소오스/드레인 전극을 포함하는 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 고저항 영역의 길이는 상기 소오스/드레인 영역의 길이의 1.3~10배인 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 고저항 영역의 폭은 상기 소오스/드레인 영역의 폭의 25~100%인 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 고저항 영역의 형상은 사각형 또는 지그재그형인 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 연결영역의 면적은 상기 채널영역의 면적의 5~50%인 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 연결영역의 하나 또는 다수면이 테이퍼각을 갖는 형상인 것을 특징으로 하는 박막트랜지스터.
- 제 1 항에 있어서,상기 연결영역의 하나 또는 다수면이 곡면을 포함하는 것을 특징으로 하는 박막트랜지스터.
- 제 2 항에 있어서,상기 고저항 영역의 길이는 3~20㎛인 것을 특징으로 하는 박막트랜지스터.
- 제 3 항에 있어서,상기 고저항 영역의 폭은 1~4㎛인 것을 특징으로 하는 박막트랜지스터.
- 기판을 제공하고,상기 기판 상에 다결정 실리콘층을 형성하고,상기 다결정 실리콘층을 패터닝하여, 소오스/드레인 예정영역, 고저항 예정영역, 연결예정영역 및 채널 예정영역을 포함하는 반도체층을 형성하고,상기 반도체층을 포함하는 기판 전면에 걸쳐 게이트 절연막을 형성하고,상기 게이트 절연막 상의 상기 채널 예정 영역과 대응되는 영역에 게이트 전극을 형성하고,상기 반도체층에 이온도핑공정을 실시하여, 소오스/드레인 영역, 고저항 영역, 연결영역 및 채널영역을 형성하고,상기 게이트 전극을 포함하는 기판 전면에 층간절연막을 형성하고,상기 층간절연막 상에 상기 소오스/드레인 영역과 연결되는 소오스/드레인 전극을 형성하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 10 항에 있어서,상기 다결정 실리콘을 패터닝 하는 것은 건식식각법 또는 습식식각법을 이용하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 10 항에 있어서,상기 반도체층을 채널도핑하는 것을 더 포함하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 제 10 항에 있어서,상기 이온도핑공정은 5×E14~1×E16 atoms/㎤의 농도의 불순물을 주입하는 것을 특징으로 하는 박막트랜지스터의 제조방법.
- 기판;상기 기판 상에 위치하고, 소오스/드레인 영역, 상기 소오스/드레인 영역보다 작은 크기를 갖는 고저항 영역, 채널 영역 및 상기 고저항 영역과 상기 채널영역 사이에 위치하는 연결영역을 포함하는 반도체층;상기 반도체층 상에 위치하는 게이트 절연막;상기 채널영역과 대응되는 상기 게이트 절연막 상에 위치하는 게이트 전극;상기 게이트 전극 상에 위치하는 층간절연막; 및상기 층간절연막 상에 위치하고, 상기 소오스/드레인 영역과 전기적으로 연결되는 소오스/드레인 전극을 포함하는 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 고저항 영역의 길이는 상기 소오스/드레인 영역의 길이의 1.3~10배인 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 고저항 영역의 폭은 상기 소오스/드레인 영역의 폭의 25~100%인 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 고저항 영역의 형상은 사각형 또는 지그재그형인 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 연결영역의 면적은 상기 채널영역의 면적의 5~50%인 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 연결영역의 하나 또는 다수면이 테이퍼각을 갖는 형상인 것을 특징으로 하는 평판표시장치.
- 제 14 항에 있어서,상기 연결영역의 하나 또는 다수면이 곡면을 포함하는 것을 특징으로 하는 평판표시장치.
- 제 15 항에 있어서,상기 고저항 영역의 길이는 3~20㎛인 것을 특징으로 하는 평판표시장치.
- 제 16 항에 있어서,상기 고저항 영역의 폭은 1~4㎛인 것을 특징으로 하는 평판표시장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020070002594A KR100848338B1 (ko) | 2007-01-09 | 2007-01-09 | 박막트랜지스터, 그의 제조방법 및 이를 포함하는평판표시장치 |
US11/971,191 US7821007B2 (en) | 2007-01-09 | 2008-01-08 | Thin film transistor and flat panel display device |
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KR101009432B1 (ko) | 2009-06-30 | 2011-01-19 | 주식회사 엔씰텍 | 박막트랜지스터 및 그의 제조방법 |
KR20120140474A (ko) * | 2011-06-21 | 2012-12-31 | 삼성디스플레이 주식회사 | 유기 발광 디스플레이 장치와, 이의 제조 방법 |
JP7446125B2 (ja) * | 2020-02-21 | 2024-03-08 | エイブリック株式会社 | 半導体装置およびその製造方法 |
CN115274703A (zh) * | 2022-07-29 | 2022-11-01 | 广州华星光电半导体显示技术有限公司 | 一种阵列基板及显示面板 |
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US5217913A (en) * | 1988-08-31 | 1993-06-08 | Mitsubishi Denki Kabushiki Kaisha | Method of manufacturing an MIS device having lightly doped drain structure and conductive sidewall spacers |
US5719065A (en) * | 1993-10-01 | 1998-02-17 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device with removable spacers |
US6777763B1 (en) * | 1993-10-01 | 2004-08-17 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for fabricating the same |
JPH07135323A (ja) * | 1993-10-20 | 1995-05-23 | Semiconductor Energy Lab Co Ltd | 薄膜状半導体集積回路およびその作製方法 |
JP3292657B2 (ja) * | 1995-04-10 | 2002-06-17 | キヤノン株式会社 | 薄膜トランジスタ及びそれを用いた液晶表示装置の製造法 |
US6013930A (en) * | 1997-09-24 | 2000-01-11 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device having laminated source and drain regions and method for producing the same |
US6369410B1 (en) * | 1997-12-15 | 2002-04-09 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method of manufacturing the semiconductor device |
KR19990057406A (ko) | 1997-12-29 | 1999-07-15 | 김영환 | 탑 게이트형 박막 트랜지스터의 제조 방법 |
KR100384672B1 (ko) * | 1998-01-30 | 2003-05-22 | 가부시키가이샤 히타치세이사쿠쇼 | 액정 표시 장치 |
JP3406508B2 (ja) * | 1998-03-27 | 2003-05-12 | シャープ株式会社 | 表示装置および表示方法 |
CA2783659A1 (en) * | 1999-12-21 | 2001-06-28 | Sumitomo Electric Industries, Ltd. | Horizontal junction field-effect transistor |
JP2003197638A (ja) * | 2001-12-28 | 2003-07-11 | Sharp Corp | 薄膜トランジスタ及びその製造方法 |
JP4209619B2 (ja) * | 2002-02-28 | 2009-01-14 | 株式会社半導体エネルギー研究所 | 半導体装置の作製方法 |
KR100635045B1 (ko) | 2002-10-07 | 2006-10-17 | 삼성에스디아이 주식회사 | 평판표시장치 |
US7417252B2 (en) * | 2003-07-18 | 2008-08-26 | Samsung Sdi Co., Ltd. | Flat panel display |
KR20050031249A (ko) | 2003-09-29 | 2005-04-06 | 엘지.필립스 엘시디 주식회사 | 다결정 실리콘 박막 트랜지스터 및 그 제조 방법 |
JP4232675B2 (ja) * | 2004-04-01 | 2009-03-04 | セイコーエプソン株式会社 | 半導体装置の製造方法 |
KR100635068B1 (ko) * | 2004-06-09 | 2006-10-16 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조방법, 그를 사용하여 제조된박막트랜지스터 및 그를 포함하는 평판표시장치 |
KR100635067B1 (ko) * | 2004-06-09 | 2006-10-16 | 삼성에스디아이 주식회사 | 엘디디 구조를 갖는 박막트랜지스터 및 그의 제조방법 |
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US20080164477A1 (en) | 2008-07-10 |
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