KR101087992B1 - 피모스 다결정 실리콘 박막트랜지스터 제조방법 - Google Patents
피모스 다결정 실리콘 박막트랜지스터 제조방법 Download PDFInfo
- Publication number
- KR101087992B1 KR101087992B1 KR1020040099049A KR20040099049A KR101087992B1 KR 101087992 B1 KR101087992 B1 KR 101087992B1 KR 1020040099049 A KR1020040099049 A KR 1020040099049A KR 20040099049 A KR20040099049 A KR 20040099049A KR 101087992 B1 KR101087992 B1 KR 101087992B1
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- Prior art keywords
- thin film
- film transistor
- polycrystalline silicon
- silicon thin
- active layer
- Prior art date
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 24
- 239000010409 thin film Substances 0.000 claims abstract description 50
- 230000035882 stress Effects 0.000 claims abstract description 11
- 230000032683 aging Effects 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 42
- 239000010408 film Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 2
- 229920005591 polysilicon Polymers 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- -1 tungsten (W) Chemical class 0.000 description 1
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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
- H01L29/66—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
- 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
- H01L27/1296—Multistep manufacturing methods adapted to increase the uniformity of device parameters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (9)
- 기판상에 다결정 액티브층을 형성하는 단계와;상기 다결정 액티브층의 상부에 게이트 절연막 및 게이트 전극을 형성하는 단계와;상기 다결정 액티브층에 p+ 불순물을 도핑하는 단계와;제1 및 제2 콘택홀을 포함하는 층간 절연막을 형성하는 단계와;상기 p+ 불순물이 도핑된 액티브층과 접촉하는 소스 및 드레인 전극을 형성하여 박막 트랜지스터를 완성하는 단계와;상기 박막트랜지스터에 직류 바이어스 전압을 인가하여 스트레스 에이징을 진행하는 단계를 포함하며, 상기 직류 바이어스 전압은 상기 소스 전극과 게이트 전극 사이의 전압 Vgs과, 상기 소스 전극과 드레인 전극 사이의 전압 Vds에 인가되는 것이 특징이며, 상기 Vgs = -0.1 ~ -15V이고, Vds = -5 ~ -30V이며, 이러한 범위 내에서의 상기 직류 바이어스 전압 인가 조건은 Vds의 절대값이 Vgs의 절대값 보다 큰 값을 갖는 것이 특징인 pMOS 다결정 실리콘 박막트랜지스터 제조방법.
- 삭제
- 삭제
- 제 1항에 있어서,상기 직류 바이어스 전압 인가 시간 및 온도는 각각 1 ~ 1000초 및 0℃ ~ 200℃인 pMOS 다결정 실리콘 박막트랜지스터 제조방법.
- 제 1항에 있어서,상기 다결정 액티브층은 고온 또는 저온 결정화 공정으로 결정화된 pMOS 다결정 실리콘 박막트랜지스터 제조방법.
- 다결정 액티브층과, 게이트 절연막과, 게이트 전극과, 층간절연막과,소스 전극 및 드레인 전극으로 이루어진 pMOS 다결정 실리콘 박막트랜지스터를 준비하는 단계와;상기 pMOS 다결정 실리콘 박막트랜지스터에 직류 바이어스 전압을 인가하여 스트레스 에이징을 진행하는 단계를 포함하며, 상기 직류 바이어스 전압은 상기 소스 전극과 게이트 전극 사이의 전압 Vgs과, 상기 소스 전극과 드레인 전극 사이의 전압 Vds에 인가되는 것이 특징이며, 상기 Vgs = -0.1 ~ -15V이고, Vds = -5 ~ -30V이며, 이러한 범위 내에서의 상기 직류 바이어스 전압 인가 조건은 Vds의 절대값이 Vgs의 절대값 보다 큰 값을 갖는 것이 특징인 pMOS 다결정 실리콘 박막트랜지스터의 성능 개선방법.
- 삭제
- 삭제
- 제 6항에 있어서,상기 직류 바이어스 전압 인가 시간 및 온도는 각각 1 ~ 1000초 및 0℃ ~ 200℃ pMOS 다결정 실리콘 박막트랜지스터 성능 개선방법.
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KR1020040099049A KR101087992B1 (ko) | 2004-11-30 | 2004-11-30 | 피모스 다결정 실리콘 박막트랜지스터 제조방법 |
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KR1020040099049A KR101087992B1 (ko) | 2004-11-30 | 2004-11-30 | 피모스 다결정 실리콘 박막트랜지스터 제조방법 |
Publications (2)
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KR20060060152A KR20060060152A (ko) | 2006-06-05 |
KR101087992B1 true KR101087992B1 (ko) | 2011-12-01 |
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KR1020040099049A KR101087992B1 (ko) | 2004-11-30 | 2004-11-30 | 피모스 다결정 실리콘 박막트랜지스터 제조방법 |
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Families Citing this family (1)
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KR101887564B1 (ko) * | 2011-08-12 | 2018-08-10 | 엘지디스플레이 주식회사 | 트랜지스터 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001274210A (ja) * | 2000-03-24 | 2001-10-05 | Toshiba Corp | 多結晶シリコン薄膜トランジスタの検査方法 |
JP2002111000A (ja) | 2000-09-29 | 2002-04-12 | Toshiba Corp | 薄膜トランジスタ、オフ電流制御装置及び液晶表示装置 |
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Patent Citations (2)
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JP2001274210A (ja) * | 2000-03-24 | 2001-10-05 | Toshiba Corp | 多結晶シリコン薄膜トランジスタの検査方法 |
JP2002111000A (ja) | 2000-09-29 | 2002-04-12 | Toshiba Corp | 薄膜トランジスタ、オフ電流制御装置及び液晶表示装置 |
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