KR100631011B1 - 박막트랜지스터 제조방법 - Google Patents
박막트랜지스터 제조방법 Download PDFInfo
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- KR100631011B1 KR100631011B1 KR1019990033057A KR19990033057A KR100631011B1 KR 100631011 B1 KR100631011 B1 KR 100631011B1 KR 1019990033057 A KR1019990033057 A KR 1019990033057A KR 19990033057 A KR19990033057 A KR 19990033057A KR 100631011 B1 KR100631011 B1 KR 100631011B1
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000012535 impurity Substances 0.000 claims abstract description 104
- 239000004065 semiconductor Substances 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 239000010409 thin film Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 230000001133 acceleration Effects 0.000 claims description 32
- 229910052698 phosphorus Inorganic materials 0.000 claims description 20
- 229910052796 boron Inorganic materials 0.000 claims description 17
- 239000010408 film Substances 0.000 claims description 17
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 16
- 239000011574 phosphorus Substances 0.000 claims description 16
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 14
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1259—Multistep manufacturing methods
- H01L27/127—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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 at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier 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
- H01L27/1259—Multistep manufacturing methods
- H01L27/1288—Multistep manufacturing methods employing particular masking sequences or specially adapted masks, e.g. half-tone mask
-
- 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
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
-
- 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
- H01L29/78618—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
Abstract
Description
도 6a와 도 6d는 본 발명에 따른 박막트랜지스터 제조방법에 있어서, P형 불순물 도핑 후, N형 불순물을 카운터 도핑하여 제조된 N형 박막트랜지스터의 트랜스퍼 곡선을 나타낸 도면
상술한 바와 같은 종래 기술에서는 P형 TFT와 N형 TFT에 각각의 도전형에 맞는 불순물을 도핑하기 위하여 도 2b와 도 2c에 도시된 바와 같이, 2개의 도핑 블로킹막을 사용한다.
따라서, 2개의 도핑 블로킹막을 패턴하기 위한 2매의 마스크를 각기 제작해야 하고, 이를 이용하여 2개의 도핑 블로킹막을 각기 형성해야 하기 때문에 마스크 공정수가 증가하게 되어 공정이 복잡해지고, 그에 따라 생산수율도 떨어진다.
카운터 도핑에서는 N형(혹은 P형) 불순물을 반도체층에 도핑한 후에, 그 반대 도전형을 가지는 P형(혹은 N형) 불순물을 도핑하여, 나중에 도핑된 도전형 즉, P형(혹은 N형)으로 최종 도전형을 결정한다.
Claims (8)
- 기판 상에 제 1 반도체층 및 제 1 게이트전극을 구비하는 제 1 도전형 TFT와 제 2 반도체층 및 제 2 게이트전극을 구비하는 제 2 도전형 TFT를 마련하는 공정과,상기 제 1 게이트전극 및 상기 제 2 게이트전극을 마스크로하여 상기 제 1 반도체층과 상기 제 2 반도체층에 제 1 도전형 불순물을 도핑하는 제1가속전압으로 제 1 도핑공정과,제 1 도전형 TFT를 덮는 도핑 마스크를 형성하는 공정과,상기 도핑 마스크와 상기 제 2 게이트전극을 마스크로하여 제 1 도전형 불순물이 도핑된 제 2 반도체층에 제 2 도전형 불순물을 적어도 상기 제1가속전압이상의 제2가속전압으로 카운터 도핑하는 제 2 도핑공정과,상기 제 1 도전형 TFT와 상기 제 2 도전형 TFT를 상보적으로 결합되도록 전기적으로 연결하여 CMOS TFT를 형성하는 공정을 포함하여 구성되는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 1에 있어서,상기 제 1 도전형은 P형이고, 제 2 도전형은 N형이며, 상기 제 1 도핑공정은 제 1 농도크기로 진행되고, 상기 제 2 도핑공정은 상기 제 1 농도크기보다 큰 제 2 농도크기를 가지고 진행되는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 2에 있어서,상기 제 1 도전형 불순물로 보론을 사용하고, 상기 제 2 도전형 불순물로 인을 사용하는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 2 또는, 청구항 3에 있어서,상기 제 2 도핑공정은 상기 제 1 도핑공정보다 30∼50㎸ 높은 가속전압으로 진행하는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 4에 있어서,상기 게이트절연막과 상기 게이트전극은 동일 패턴으로 형성되고 불순물은 상기 반도체층의 노출된 부분을 통하여 상기 반도체층내에 도핑되게 하는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 1에 있어서,상기 제 1 도전형은 N형이고, 제 2 도전형은 P형이며, 상기 제 1 도핑공정은 제 1 농도크기로 진행되고, 상기 제 2 도핑공정은 상기 제 1 농도크기보다 큰 제 2 농도크기를 가지고 진행되는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 6에 있어서,상기 제 1 도전형 불순물로 인을 사용하고, 상기 제 2 도전형 불순물로 보론을 사용하는 것을 특징으로하는 박막트랜지스터 제조방법.
- 청구항 6 또는, 청구항 7에 있어서,상기 제 2 도핑공정과 상기 제 1 도핑공정은 동일한 가속전압으로 진행하는 것을 특징으로하는 박막트랜지스터 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1019990033057A KR100631011B1 (ko) | 1999-08-12 | 1999-08-12 | 박막트랜지스터 제조방법 |
US09/637,610 US6468872B1 (en) | 1999-08-12 | 2000-08-11 | Method of fabricating a thin film transistor |
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KR1019990033057A KR100631011B1 (ko) | 1999-08-12 | 1999-08-12 | 박막트랜지스터 제조방법 |
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KR20010017507A KR20010017507A (ko) | 2001-03-05 |
KR100631011B1 true KR100631011B1 (ko) | 2006-10-04 |
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KR1019990033057A KR100631011B1 (ko) | 1999-08-12 | 1999-08-12 | 박막트랜지스터 제조방법 |
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US (1) | US6468872B1 (ko) |
KR (1) | KR100631011B1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001210726A (ja) * | 2000-01-24 | 2001-08-03 | Hitachi Ltd | 半導体装置及びその製造方法 |
TWI463526B (zh) * | 2004-06-24 | 2014-12-01 | Ibm | 改良具應力矽之cmos元件的方法及以該方法製備而成的元件 |
US7655511B2 (en) | 2005-11-03 | 2010-02-02 | International Business Machines Corporation | Gate electrode stress control for finFET performance enhancement |
US7635620B2 (en) | 2006-01-10 | 2009-12-22 | International Business Machines Corporation | Semiconductor device structure having enhanced performance FET device |
US20070158743A1 (en) * | 2006-01-11 | 2007-07-12 | International Business Machines Corporation | Thin silicon single diffusion field effect transistor for enhanced drive performance with stress film liners |
US7790540B2 (en) | 2006-08-25 | 2010-09-07 | International Business Machines Corporation | Structure and method to use low k stress liner to reduce parasitic capacitance |
WO2008062893A1 (fr) * | 2006-11-24 | 2008-05-29 | Advanced Lcd Technologies Development Center Co., Ltd. | Transistor à couche mince, procédé de fabrication de transistor à couche mince et affichage |
US8115254B2 (en) | 2007-09-25 | 2012-02-14 | International Business Machines Corporation | Semiconductor-on-insulator structures including a trench containing an insulator stressor plug and method of fabricating same |
US8492846B2 (en) | 2007-11-15 | 2013-07-23 | International Business Machines Corporation | Stress-generating shallow trench isolation structure having dual composition |
TWI424505B (zh) * | 2008-09-12 | 2014-01-21 | Innolux Corp | 薄膜電晶體基板的製造方法 |
US8598006B2 (en) | 2010-03-16 | 2013-12-03 | International Business Machines Corporation | Strain preserving ion implantation methods |
Citations (2)
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---|---|---|---|---|
JPH09116157A (ja) * | 1995-10-16 | 1997-05-02 | Hitachi Ltd | Cmos薄膜半導体装置及びその製造方法 |
KR0131062B1 (ko) * | 1992-08-27 | 1998-04-14 | 순페이 야마자끼 | 반도체장치 제작방법 |
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EP0642179B1 (en) * | 1993-03-23 | 1999-02-03 | TDK Corporation | Solid state imaging device and process for production thereof |
JP2873660B2 (ja) * | 1994-01-08 | 1999-03-24 | 株式会社半導体エネルギー研究所 | 半導体集積回路の作製方法 |
US6133620A (en) * | 1995-05-26 | 2000-10-17 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and process for fabricating the same |
JP3312083B2 (ja) * | 1994-06-13 | 2002-08-05 | 株式会社半導体エネルギー研究所 | 表示装置 |
US6337232B1 (en) * | 1995-06-07 | 2002-01-08 | Semiconductor Energy Laboratory Co., Ltd. | Method of fabrication of a crystalline silicon thin film semiconductor with a thin channel region |
KR100265179B1 (ko) * | 1995-03-27 | 2000-09-15 | 야마자끼 순페이 | 반도체장치와 그의 제작방법 |
JP4027465B2 (ja) * | 1997-07-01 | 2007-12-26 | 株式会社半導体エネルギー研究所 | アクティブマトリクス型表示装置およびその製造方法 |
KR100269520B1 (ko) * | 1997-07-29 | 2000-10-16 | 구본준 | 박막트랜지스터, 액정표시장치와 그 제조방법 |
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- 1999-08-12 KR KR1019990033057A patent/KR100631011B1/ko not_active IP Right Cessation
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2000
- 2000-08-11 US US09/637,610 patent/US6468872B1/en not_active Expired - Lifetime
Patent Citations (2)
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KR0131062B1 (ko) * | 1992-08-27 | 1998-04-14 | 순페이 야마자끼 | 반도체장치 제작방법 |
JPH09116157A (ja) * | 1995-10-16 | 1997-05-02 | Hitachi Ltd | Cmos薄膜半導体装置及びその製造方法 |
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US6468872B1 (en) | 2002-10-22 |
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