KR100275957B1 - 박막트랜지스터의 제조방법 - Google Patents
박막트랜지스터의 제조방법 Download PDFInfo
- Publication number
- KR100275957B1 KR100275957B1 KR1019980040984A KR19980040984A KR100275957B1 KR 100275957 B1 KR100275957 B1 KR 100275957B1 KR 1019980040984 A KR1019980040984 A KR 1019980040984A KR 19980040984 A KR19980040984 A KR 19980040984A KR 100275957 B1 KR100275957 B1 KR 100275957B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- gate
- electrode layer
- ohmic contact
- gate insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000010409 thin film Substances 0.000 title abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000000059 patterning Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 99
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 abstract description 2
- 238000000206 photolithography Methods 0.000 description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0312—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes
- H10D30/0316—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] characterised by the gate electrodes of lateral bottom-gate TFTs comprising only a single 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32134—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by liquid etching only
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0321—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (6)
- 기판 상에 게이트를 형성하는 공정과,상기 기판 상에 상기 게이트를 덮도록 형성된 게이트절연막, 활성층, 오믹접촉층 및 전극층을 순차적으로 형성하는 공정과,상기 전극층, 오믹접촉층 및 활성층을 상기 게이트와 대응하는 부분이 남게 상기 게이트절연층이 노출되도록 패터닝하는 공정과,상기 전극층의 상기 오믹접촉층의 양측을 덮는 포토레지스트를 사용하여 상기 전극층의 상기 게이트와 대응하는 부분을 패터닝하여 소오스 및 드레인전극을 형성하면서 상기 게이트절연층 상의 식각 잔유물을 제거하는 공정을 구비하는 박막트랜지스터의 제조방법.
- 청구항 1에 있어서 상기 전극층은 Mo, W, Ta, Cr 또는 Ti의 고융점 금 속의 단일층, 또는, 상기 고융점 금속과 알루미늄 또는 알루미늄 합금의 이중층으로 형성하는 박막트랜지스터의 제조방법.
- 청구항 1에 있어서 상기 전극층과 상기 오믹접촉층 및 활성층을 'F(fluorine)'와 'Cl(chroline)'를 포함하는 SF6+HCl로 연속 식각하여 패터닝하는 박막트랜지스터의 제조방법.
- 청구항 1에 있어서 상기 전극층을 'F'를 포함하는 SF6또는 CF4의 가스, 또는, 'Cl'를 포함하는 HCl, Cl2또는 BCl3의 가스로 패터닝하는 박막트랜지스터의 제조방법.
- 청구항 1에 있어서 상기 전극층을 전극층를 인산(H3PO4)+질산(HNO3)+초산(CH3COOH)을 혼합한 식각 용액으로 패터닝하는 박막트랜지스터의 제조방법.
- 청구항 1, 청구항 4 또는 청구항 5에 있어서 상기 오믹접촉층 및 활성층을 'Cl'를 포함하는 HCl, Cl2또는 BCl3의 가스를 패터닝하는 박막트랜지스터의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980040984A KR100275957B1 (ko) | 1998-09-30 | 1998-09-30 | 박막트랜지스터의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980040984A KR100275957B1 (ko) | 1998-09-30 | 1998-09-30 | 박막트랜지스터의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000021735A KR20000021735A (ko) | 2000-04-25 |
KR100275957B1 true KR100275957B1 (ko) | 2001-01-15 |
Family
ID=19552654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980040984A Expired - Fee Related KR100275957B1 (ko) | 1998-09-30 | 1998-09-30 | 박막트랜지스터의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100275957B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100415700B1 (ko) * | 2001-04-06 | 2004-01-24 | 테크노세미켐 주식회사 | 박막트랜지스터용 액정표시장치의 소스 및 드레인 전극용식각액 조성물 |
KR100425859B1 (ko) * | 2001-05-31 | 2004-04-03 | 엘지.필립스 엘시디 주식회사 | 박막 트랜지스터 표시소자의 반도체층 패턴 불량 수리방법 |
KR100766317B1 (ko) | 2004-12-10 | 2007-10-11 | 엘지.필립스 엘시디 주식회사 | 액정표시장치용 에천트 조성물 및 저저항 배선 제조방법 |
-
1998
- 1998-09-30 KR KR1019980040984A patent/KR100275957B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20000021735A (ko) | 2000-04-25 |
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