KR100839747B1 - 평판 표시 장치용 트랜지스터의 제조 방법 - Google Patents
평판 표시 장치용 트랜지스터의 제조 방법 Download PDFInfo
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- KR100839747B1 KR100839747B1 KR1020060122387A KR20060122387A KR100839747B1 KR 100839747 B1 KR100839747 B1 KR 100839747B1 KR 1020060122387 A KR1020060122387 A KR 1020060122387A KR 20060122387 A KR20060122387 A KR 20060122387A KR 100839747 B1 KR100839747 B1 KR 100839747B1
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 95
- 239000002184 metal Substances 0.000 claims abstract description 95
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 62
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000000758 substrate Substances 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 49
- 150000002500 ions Chemical class 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 241
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 50
- 239000003054 catalyst Substances 0.000 claims description 29
- 239000011229 interlayer Substances 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 21
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 21
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 16
- 239000010936 titanium Substances 0.000 claims description 14
- 238000000059 patterning Methods 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052793 cadmium Inorganic materials 0.000 claims description 7
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 7
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 238000005137 deposition process Methods 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 238000000206 photolithography Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 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
- H01L21/02672—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using crystallisation enhancing elements
-
- 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
- H01L27/1274—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor
- H01L27/1277—Multistep manufacturing methods with a particular formation, treatment or patterning of the active layer specially adapted to the circuit arrangement using crystallisation of amorphous semiconductor or recrystallisation of crystalline semiconductor using a crystallisation promoting species, e.g. local introduction of Ni catalyst
-
- 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
- H01L29/78606—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
-
- 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
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
Abstract
Description
Claims (21)
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- 기판을 마련하는 단계;상기 기판 상에 이온이 주입된 제1비정질 실리콘으로 소스 영역 및 드레인 영역을 갖는 제1액티브층을 형성하고, 상기 소스 영역 및 드레인 영역 상에 금속 실리사이드층이 형성되도록 금속 촉매층을 형성하는 단계;상기 금속 실리사이드층이 형성된 기판 상에 이온이 주입되지 않은 제2비정질 실리콘으로 채널 영역을 가지는 제2액티브층을 형성하는 단계; 및,상기 기판을 열처리하여 상기 제1액티브층 및 상기 2액티브층을 동시에 결정화하는 단계를 포함하고,상기 제1액티브층의 제1비정질 실리콘 및 제2액티브층의 제2비정질 실리콘은 400~900℃에서 1분~20시간 동안 함께 열처리됨으로써, 상기 금속 실리사이드층이 시드(seed)로 작용하여, 상기 제1액티브층의 제1비정질 실리콘 및 상기 제2액티브층의 제2비정질 실리콘이 동시에 다결정 실리콘으로 결정화되도록 함을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 제 10 항에 있어서, 상기 금속 실리사이드층의 형성 단계는 금속 촉매를 상호간 이격된 입자(particle) 구조 및 상호간 일체로 연결된 층(layer) 구조중 선택된 어느 하나의 구조로 상기 제1비정질 실리콘의 표면에 형성하여 이루어짐을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 제 10 항에 있어서, 상기 제1액티브층과 상기 금속 실리사이드층을 형성하는 단계는 상기 기판 상에 이온이 주입된 제1비정질 실리콘을 형성하는 단계;상기 제1비정질 실리콘과의 계면에 상기 금속 실리사이드층이 형성되도록 상기 제1비정질 실리콘 상에 금속 촉매층을 형성하는 단계;상기 제1비정질 실리콘과 상기 금속 실리사이드층을 패터닝하는 단계; 및,상기 금속 촉매층을 제거하는 단계를 포함하는 것을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 제 10 항에 있어서, 상기 제1액티브층과 상기 금속 실리사이드층을 형성하는 단계는 상기 기판 상에 이온이 주입된 제1비정질 실리콘을 형성하는 단계;상기 제1비정질 실리콘과의 계면에 상기 금속 실리사이드층이 형성되도록 상기 제1비정질 실리콘 상에 금속 촉매층을 형성하는 단계;상기 금속 촉매층을 제거하는 단계; 및,상기 제1비정질 실리콘과 상기 금속 실리사이드층을 패터닝하는 단계를 포함하는 것을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 제 10 항 내지 제 13 항중 어느 한 항에 있어서, 상기 금속 촉매는 니켈(Ni), 카드뮴(Cd), 코발트(Co), 티타늄(Ti), 팔라듐(Pd) 및 텅스텐(W)중 선택된 어느 하나인 것을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 삭제
- 제 10 항에 있어서, 상기 제2액티브층을 결정화하는 단계 이후,상기 제2액티브층이 형성된 기판 상에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 상에 게이트 전극을 형성하는 단계;상기 게이트 전극을 덮도록 층간 절연막을 형성하는 단계; 및,상기 층간 절연막 상에 소스 전극 및 드레인 전극을 형성하는 단계가 더 수행됨을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 기판을 마련하는 단계;상기 기판 상에 이온이 주입된 제1비정질 실리콘으로 소스 영역 및 드레인 영역을 가지는 제1액티브층을 형성하고, 상기 소스 영역 및 드레인 영역 상에 금속 실리사이드층이 형성되도록 금속 촉매층을 형성하는 단계;상기 기판을 열처리하여 상기 제1액티브층을 결정화하는 단계;상기 제1액티브층이 결정화된 기판 상에 이온이 주입되지 않은 제2비정질 실리콘으로 채널 영역을 갖는 제2액티브층을 형성하는 단계; 및,상기 기판을 열처리하여 상기 제2액티브층을 결정화하는 단계를 포함하고,상기 제1액티브층의 제1비정질 실리콘 및 제2액티브층의 제2비정질 실리콘은 400~900℃에서 1분~20시간 동안 각각 열처리됨으로써, 상기 금속 실리사이드층이 시드(seed)로 작용하여, 상기 제1액티브층의 제1비정질 실리콘 및 상기 제2액티브층의 제2비정질 실리콘이 각각 다결정 실리콘으로 결정화되도록 함을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 제 17 항에 있어서, 상기 금속 촉매층을 형성하는 단계에서 이용된 금속 촉매는 니켈(Ni), 카드뮴(Cd), 코발트(Co), 티타늄(Ti), 팔라듐(Pd) 및 텅스텐(W)중 선택된 어느 하나인 것을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 삭제
- 제 17 항에 있어서, 상기 제2액티브층을 결정화하는 단계 이후,상기 제2액티브층이 형성된 기판 상에 게이트 절연막을 형성하는 단계;상기 게이트 절연막 상에 게이트 전극을 형성하는 단계;상기 게이트 전극을 덮도록 층간 절연막을 형성하는 단계; 및,상기 층간 절연막 상에 소스 전극 및 드레인 전극을 형성하는 단계가 더 수행됨을 특징으로 하는 평판 표시 장치용 트랜지스터의 제조 방법.
- 삭제
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KR19990075412A (ko) * | 1998-03-20 | 1999-10-15 | 윤종용 | 박막 트랜지스터 및 그 제조 방법 |
KR19990088504A (ko) * | 1998-05-26 | 1999-12-27 | 모리시타 요이찌 | 박막트랜지스터및그제조방법 |
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KR19990075412A (ko) * | 1998-03-20 | 1999-10-15 | 윤종용 | 박막 트랜지스터 및 그 제조 방법 |
KR19990088504A (ko) * | 1998-05-26 | 1999-12-27 | 모리시타 요이찌 | 박막트랜지스터및그제조방법 |
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