KR100729055B1 - 박막 트랜지스터 및 그 제조 방법 - Google Patents
박막 트랜지스터 및 그 제조 방법 Download PDFInfo
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- KR100729055B1 KR100729055B1 KR1020050115112A KR20050115112A KR100729055B1 KR 100729055 B1 KR100729055 B1 KR 100729055B1 KR 1020050115112 A KR1020050115112 A KR 1020050115112A KR 20050115112 A KR20050115112 A KR 20050115112A KR 100729055 B1 KR100729055 B1 KR 100729055B1
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- film transistor
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- 239000010409 thin film Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 37
- 239000010410 layer Substances 0.000 claims abstract description 220
- 239000004065 semiconductor Substances 0.000 claims abstract description 51
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 238000009792 diffusion process Methods 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 230000004888 barrier function Effects 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 239000011229 interlayer Substances 0.000 claims abstract description 16
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 15
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 13
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000010936 titanium Substances 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 5
- 229910004205 SiNX Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 14
- 239000002019 doping agent Substances 0.000 description 10
- 238000001994 activation Methods 0.000 description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- 229920005591 polysilicon Polymers 0.000 description 9
- 239000012535 impurity Substances 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004151 rapid thermal annealing Methods 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 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
- H01L29/78651—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- 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
-
- 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
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
-
- 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
Abstract
Description
Claims (12)
- 금속 기판;상기 금속 기판 상에 형성되며 금속 이온의 확산을 방지하기 위한 확산 방지층;상기 확산 방지층 상에 적어도 두 개의 절연물질이 적층되어 형성된 버퍼층;상기 버퍼층의 일 영역 상에 형성되고, 활성층과 오믹 콘택층을 포함하며, 상기 오믹 콘택층이 급속 열처리 방법으로 활성화되는 반도체층;상기 반도체층을 포함하는 상기 버퍼층 상에 형성되는 게이트 절연층;상기 게이트 절연층 상의 상기 활성층과 대응되는 영역에 형성되는 게이트 전극;상기 게이트 전극을 포함하는 상기 게이트 절연층 상에 형성되는 층간 절연층; 및상기 층간 절연층에 형성된 콘택홀을 통해 상기 오믹 콘택층과 접속되는 소스/드레인 전극을 포함하는 박막 트랜지스터.
- 제 1항에 있어서,상기 금속은 스테인리스강(SUS) 또는 티타늄(Ti)인 박막 트랜지스터.
- 제 1항에 있어서,상기 확산 방지층은 질화 티타늄(TiN)으로 구성되는 박막 트랜지스터.
- 제 3항에 있어서,상기 질화 티타늄(TiN)은 100nm 내지 400nm의 두께로 형성되는 박막 트랜지스터.
- 제 1항에 있어서,상기 버퍼층은 제1 산화 실리콘(SiO2)/제1 질화 실리콘(SiNx)이 적층된 구조인 박막 트랜지스터.
- 제 5항에 있어서,상기 제1 산화 실리콘은 200nm 내지 1um의 두께로 형성되는 박막 트랜지스터.
- 제 5항에 있어서,상기 제1 질화 실리콘은 50nm 내지 200nm의 두께로 형성되는 박막 트랜지스터.
- 제 5항에 있어서,상기 버퍼층은 상기 제1 산화 실리콘/제1 질화 실리콘 상에 제2 산화 실리콘(SiO2)/제2 질화 실리콘(SiNx)이 더 적층된 구조인 박막 트랜지스터.
- 제 8항에 있어서,상기 제2 산화 실리콘은 50nm 내지 1um의 두께로 형성되는 박막 트랜지스터.
- 제 8항에 있어서,상기 제2 질화 실리콘(SiNx)은 50nm 내지 200nm의 두께로 형성되는 박막 트랜지스터.
- 금속 기판 상에 금속 이온의 확산을 방지하기 위한 확산 방지층을 형성하는 단계;상기 확산 방지층 상에 적어도 두 개의 절연물질을 적층하여 버퍼층을 형성하는 단계;상기 버퍼층 상에 비정질 실리콘층을 형성한 후 상기 비정질 실리콘층을 결정화시키고, 소정의 형상으로 패터닝하여 반도체층을 형성하는 단계;상기 버퍼층과 상기 반도체층 상에 게이트 절연층을 형성하는 단계;상기 게이트 절연층의 일 영역 상에 게이트 전극을 형성하는 단계;상기 게이트 전극과 대응하는 영역을 제외한 나머지 영역의 상기 반도체층에 이온을 도핑하여 오믹 콘택층을 형성하는 단계;상기 게이트 전극을 포함하는 상기 게이트 절연층 상에 층간 절연층을 형성하는 단계;급속 열처리 방법으로 상기 반도체층을 활성화하는 단계; 및상기 오믹 콘택층의 일 영역이 노출되도록 상기 층간 절연층에 콘택홀을 형성하고, 상기 콘택홀을 통해 상기 오믹 콘택층과 접속되도록 소스/드레인 전극을 형성하는 단계를 포함하는 박막 트랜지스터의 제조 방법.
- 제 11항에 있어서,상기 급속 열처리 방법은 500℃ 내지 650℃의 온도로, 적어도 30초 내지 2분 동안 진행하는 박막 트랜지스터 제조 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020050115112A KR100729055B1 (ko) | 2005-11-29 | 2005-11-29 | 박막 트랜지스터 및 그 제조 방법 |
JP2006221947A JP4680850B2 (ja) | 2005-11-16 | 2006-08-16 | 薄膜トランジスタ及びその製造方法 |
US11/508,530 US7868327B2 (en) | 2005-11-16 | 2006-08-22 | Thin film transistor and method of manufacturing the same |
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KR1020050115112A KR100729055B1 (ko) | 2005-11-29 | 2005-11-29 | 박막 트랜지스터 및 그 제조 방법 |
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KR20070056459A KR20070056459A (ko) | 2007-06-04 |
KR100729055B1 true KR100729055B1 (ko) | 2007-06-14 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5112764A (en) | 1990-09-04 | 1992-05-12 | North American Philips Corporation | Method for the fabrication of low leakage polysilicon thin film transistors |
JP2000058861A (ja) * | 1998-08-11 | 2000-02-25 | Internatl Business Mach Corp <Ibm> | 活性fetボディ・デバイス及び活性fetボディ・デバイスの製造方法 |
KR20020041782A (ko) * | 2000-11-28 | 2002-06-03 | 야마자끼 순페이 | 반도체 장치 및 그 제조 방법 |
KR20020095791A (ko) * | 2001-06-15 | 2002-12-28 | 엘지전자 주식회사 | 고온용 기판을 이용한 박막트랜지스터 및 그 제조방법과이를 이용한 표시장치의 제조방법 |
KR20040054441A (ko) * | 2002-12-18 | 2004-06-25 | 한국전자통신연구원 | 반도체 소자의 버퍼 절연막 형성 방법 및 이를 이용한박막 트랜지스터 제조 방법 |
KR20050051446A (ko) * | 2003-11-27 | 2005-06-01 | 삼성에스디아이 주식회사 | 박막트랜지스터, 상기 박막트랜지스터를 구비하는유기전계발광표시장치 및 상기 박막트랜지스터의 제조방법 |
KR20050105867A (ko) * | 2004-05-03 | 2005-11-08 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조 방법 |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5112764A (en) | 1990-09-04 | 1992-05-12 | North American Philips Corporation | Method for the fabrication of low leakage polysilicon thin film transistors |
JP2000058861A (ja) * | 1998-08-11 | 2000-02-25 | Internatl Business Mach Corp <Ibm> | 活性fetボディ・デバイス及び活性fetボディ・デバイスの製造方法 |
KR20020041782A (ko) * | 2000-11-28 | 2002-06-03 | 야마자끼 순페이 | 반도체 장치 및 그 제조 방법 |
KR20020095791A (ko) * | 2001-06-15 | 2002-12-28 | 엘지전자 주식회사 | 고온용 기판을 이용한 박막트랜지스터 및 그 제조방법과이를 이용한 표시장치의 제조방법 |
KR20040054441A (ko) * | 2002-12-18 | 2004-06-25 | 한국전자통신연구원 | 반도체 소자의 버퍼 절연막 형성 방법 및 이를 이용한박막 트랜지스터 제조 방법 |
KR20050051446A (ko) * | 2003-11-27 | 2005-06-01 | 삼성에스디아이 주식회사 | 박막트랜지스터, 상기 박막트랜지스터를 구비하는유기전계발광표시장치 및 상기 박막트랜지스터의 제조방법 |
KR20050105867A (ko) * | 2004-05-03 | 2005-11-08 | 삼성에스디아이 주식회사 | 박막트랜지스터의 제조 방법 |
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