KR100544115B1 - 박막트랜지스터 제조방법 - Google Patents
박막트랜지스터 제조방법 Download PDFInfo
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- KR100544115B1 KR100544115B1 KR1020000074308A KR20000074308A KR100544115B1 KR 100544115 B1 KR100544115 B1 KR 100544115B1 KR 1020000074308 A KR1020000074308 A KR 1020000074308A KR 20000074308 A KR20000074308 A KR 20000074308A KR 100544115 B1 KR100544115 B1 KR 100544115B1
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- Prior art keywords
- layer
- active layer
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- 239000010409 thin film Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 36
- 239000010410 layer Substances 0.000 claims abstract description 92
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 12
- 238000005530 etching Methods 0.000 claims abstract description 12
- 238000002161 passivation Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000000059 patterning Methods 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 229920005591 polysilicon Polymers 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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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 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
- H01L27/124—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 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- 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 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
- 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 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (4)
- (S1) 기판 상에 선택적으로 버퍼층을 형성하고, 상기 버퍼층 상에 비정질 실 리콘층을 형성하고 결정화시킨 후 패터닝하여 활성층을 정의하는 단계;(S2) 상기 활성층의 상부에 게이트 절연층을 적층 형성한 후, 상기 활성층에 대응되도록 게이트 전극을 형성시키는 단계;(S3) 상기 게이트 전극을 감싸는 LDD(Lightly Doped Drain) 패턴을 형성시키는 단계;(S4) 상기 LDD 패턴을 마스크로 하여 고농도의 이온 도핑을 수행함으로써, 상기 활성층의 양단부에 소스 콘택 영역 및 드레인 콘택 영역을 형성시키는 단계;(S5) 상기 LDD 패턴을 식각 마스크로 하여 게이트 절연층을 식각하는 단계;(S6) 상기 S5 단계의 결과물상에 금속층을 적층하고 패터닝하여 상기 콘택 영역에 소스 전극과 드레인 전극을 형성함과 동시에, 상기 소스 전극 및 드레인 전극중에서 어느 하나로부터 연장되는 데이터 라인과 상기 게이트 전극으로부터 연장되는 스캐닝 라인을 형성하되, 상기 데이터 라인과 스캐닝 라인의 교차 영역에서 어느 한 라인의 폭보다 넓게 또다른 한 라인을 식각하는 단계;(S7) 상기 S6 단계의 결과물 상부에 보호층을 증착하는 단계; 및(S8) 상기 데이터 라인과 스캐닝 라인의 교차 영역에서 상기 식각된 라인 위의 보호층 영역에 콘텍 홀들을 형성하여, 상기 단계 S6에서의 식각에 의하여 분리되어 있는 라인들을 상기 보호층 위에서 서로 연결시키는 단계를 포함하는 박막트랜지스터 제조방법.
- 제1항에 있어서, 상기 S2 단계에 이어,상기 활성층에 LDD 영역을 정의하기 위해, 상기 게이트 전극을 마스크로 하여 상기 활성층의 양측에 저농도의 이온을 주입시키는 단계가 더 포함되는 박막트랜지스터 제조방법.
- 제1항에 있어서, 상기 S5 단계에 이어,상기 LDD 패턴을 제거하는 단계가 더 포함되는 박막트랜지스터 제조방법.
- 제1항에 있어서, 상기 S5 단계에 이어,상기 활성층에 LDD 영역을 정의하기 위해, 상기 LDD 패턴을 마스크로 하여 상기 활성층의 양측에 저농도의 이온을 주입시키는 단계가 더 포함되는 박막트랜지스터 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000074308A KR100544115B1 (ko) | 2000-12-07 | 2000-12-07 | 박막트랜지스터 제조방법 |
Applications Claiming Priority (1)
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KR1020000074308A KR100544115B1 (ko) | 2000-12-07 | 2000-12-07 | 박막트랜지스터 제조방법 |
Publications (2)
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KR20020045020A KR20020045020A (ko) | 2002-06-19 |
KR100544115B1 true KR100544115B1 (ko) | 2006-01-23 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100793278B1 (ko) * | 2005-02-25 | 2008-01-10 | 재단법인서울대학교산학협력재단 | 다결정 실리콘 박막트랜지스터의 제조 방법 |
CN102402090B (zh) * | 2011-12-05 | 2014-05-14 | 深圳市华星光电技术有限公司 | 一种阵列基板及液晶显示装置、阵列基板的制造方法 |
KR101451403B1 (ko) * | 2012-06-26 | 2014-10-23 | 엘지디스플레이 주식회사 | 금속 산화물 반도체를 포함하는 박막 트랜지스터 기판 및 그 제조 방법 |
US9048160B2 (en) | 2012-07-12 | 2015-06-02 | Carestream Health, Inc. | Radiographic imaging array fabrication process for metal oxide thin-film transistors with reduced mask count |
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