KR100493378B1 - 다결정 실리콘 박막트랜지스터의 제조 방법 - Google Patents
다결정 실리콘 박막트랜지스터의 제조 방법 Download PDFInfo
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- KR100493378B1 KR100493378B1 KR10-2001-0077607A KR20010077607A KR100493378B1 KR 100493378 B1 KR100493378 B1 KR 100493378B1 KR 20010077607 A KR20010077607 A KR 20010077607A KR 100493378 B1 KR100493378 B1 KR 100493378B1
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- thin film
- insulating film
- film transistor
- gate
- doping
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- 239000010409 thin film Substances 0.000 title claims abstract description 52
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 229920005591 polysilicon Polymers 0.000 title abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 65
- 239000010408 film Substances 0.000 claims description 48
- 239000000758 substrate Substances 0.000 claims description 27
- 239000004065 semiconductor Substances 0.000 claims description 26
- 239000011229 interlayer Substances 0.000 claims description 25
- 239000011521 glass Substances 0.000 claims description 12
- 238000000059 patterning Methods 0.000 claims description 12
- 238000000151 deposition Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 15
- 229910052814 silicon oxide Inorganic materials 0.000 description 15
- 229910021417 amorphous silicon Inorganic materials 0.000 description 14
- 239000011810 insulating material Substances 0.000 description 14
- 150000002500 ions Chemical class 0.000 description 12
- 238000005229 chemical vapour deposition Methods 0.000 description 9
- 238000001994 activation Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 238000005224 laser annealing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005499 laser crystallization Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
Classifications
-
- 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
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42384—Gate electrodes for field effect devices for field-effect transistors with insulated gate for thin film field effect transistors, e.g. characterised by the thickness or the shape of the insulator or the dimensions, the shape or the lay-out of the conductor
-
- 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
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4908—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET for thin film semiconductor, e.g. gate of TFT
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (13)
- 유리기판 위에 버퍼층을 형성하는 단계;상기 버퍼층 위에 반도체층을 형성하고 패터닝하는 단계;상기 반도체층을 포함한 기판 전면에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 위에 게이트 금속을 증착하고 패터닝하여 상기 유리 기판면에 대하여 70 내지 90°의 각을 이루도록 소정형상의 게이트 전극을 형성하는 단계;상기 게이트 전극을 포함한 상기 게이트 절연막 전면에 층간절연막을 형성하는 단계; 및상기 층간 절연막 전면에 n+ 도핑을 행하고 활성화하는 단계를 포함하며,이때, 상기 게이트 금속은 금속물질로 구성된 것을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 유리기판 위에 버퍼층을 형성하는 단계;상기 버퍼층 위에 반도체층을 형성하고 패터닝하는 단계;상기 반도체층 위에 게이트 절연막과 게이트 금속을 증착하고 패터닝하여 상기 유리 기판면에 대하여 70 내지 90°의 각을 이루도록 소정형상의 게이트 절연막과 게이트 전극을 형성하는 단계;상기 게이트 전극을 포함한 상기 버퍼층 전면에 층간절연막을 형성하는 단계; 및상기 층간 절연막 전면에 n+ 도핑을 행하고 활성화하는 단계를 포함하며,이때, 상기 게이트 금속은 금속물질로 구성된 것을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 제 2항에 있어서,상기 게이트 절연막과 게이트 전극을 형성하는 단계는 상기 반도체층 위에 게이트 절연막과 게이트 금속을 동시에 증착한 후 패터닝하는 공정으로 이루어짐을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 제 2항에 있어서,상기 게이트 절연막과 게이트 전극을 형성하는 단계는 상기 반도체층 위에 게이트 절연막을 증착한 후 패터닝하고, 그 위에 게이트 금속을 증착한 후 패터닝하는 공정으로 이루어짐을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 삭제
- 제 1항 내지 제 4항 중 어느 한 항에 있어서,상기 층간절연막은 2000Å이내의 두께로 증착되어 형성됨을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 제 1항 내지 제 4항 중 어느 한 항에 있어서,상기 층간절연막 위에 소스/드레인 전극을 형성하는 단계를 추가로 포함하는 것을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 제 1항 내지 제 4항 중 어느 한 항에 있어서,상기 n+도핑은 인(P)을 도핑하는 것임을 특징으로 하는 다결정 실리콘 박막트랜지스터의 제조방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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KR10-2001-0077607A KR100493378B1 (ko) | 2001-12-08 | 2001-12-08 | 다결정 실리콘 박막트랜지스터의 제조 방법 |
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KR10-2001-0077607A KR100493378B1 (ko) | 2001-12-08 | 2001-12-08 | 다결정 실리콘 박막트랜지스터의 제조 방법 |
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KR10-2004-0073450A Division KR100510732B1 (ko) | 2004-09-14 | 2004-09-14 | 다결정 실리콘 박막트랜지스터의 제조 방법 |
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KR20030047185A KR20030047185A (ko) | 2003-06-18 |
KR100493378B1 true KR100493378B1 (ko) | 2005-06-07 |
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KR10-2001-0077607A KR100493378B1 (ko) | 2001-12-08 | 2001-12-08 | 다결정 실리콘 박막트랜지스터의 제조 방법 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4100351B2 (ja) * | 2004-02-09 | 2008-06-11 | セイコーエプソン株式会社 | 薄膜トランジスタの製造方法 |
KR100659759B1 (ko) * | 2004-10-06 | 2006-12-19 | 삼성에스디아이 주식회사 | 바텀 게이트형 박막트랜지스터, 그를 구비하는평판표시장치 및 박막트랜지스터의 제조방법 |
KR101256681B1 (ko) * | 2006-12-29 | 2013-04-19 | 엘지디스플레이 주식회사 | 폴리실리콘 박막트랜지스터 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5292675A (en) * | 1991-12-24 | 1994-03-08 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming a MOS transistor and structure thereof |
KR100271668B1 (ko) * | 1993-04-08 | 2000-11-15 | 구본준 | 폴리 실리콘 박막 트랜지스터 제조방법 |
KR100275716B1 (ko) * | 1993-12-28 | 2000-12-15 | 윤종용 | 다결정 실리콘 박막 트랜지스터 제조 방법 |
JP2001237443A (ja) * | 2000-02-21 | 2001-08-31 | Hitachi Cable Ltd | 結晶シリコン薄膜半導体装置およびその製造方法 |
JP2001358155A (ja) * | 2001-04-16 | 2001-12-26 | Seiko Epson Corp | 薄膜半導体装置の製造方法 |
-
2001
- 2001-12-08 KR KR10-2001-0077607A patent/KR100493378B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5292675A (en) * | 1991-12-24 | 1994-03-08 | Semiconductor Energy Laboratory Co., Ltd. | Method for forming a MOS transistor and structure thereof |
KR100271668B1 (ko) * | 1993-04-08 | 2000-11-15 | 구본준 | 폴리 실리콘 박막 트랜지스터 제조방법 |
KR100275716B1 (ko) * | 1993-12-28 | 2000-12-15 | 윤종용 | 다결정 실리콘 박막 트랜지스터 제조 방법 |
JP2001237443A (ja) * | 2000-02-21 | 2001-08-31 | Hitachi Cable Ltd | 結晶シリコン薄膜半導体装置およびその製造方法 |
JP2001358155A (ja) * | 2001-04-16 | 2001-12-26 | Seiko Epson Corp | 薄膜半導体装置の製造方法 |
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