KR20050120368A - 박막트랜지스터의 제조방법 - Google Patents
박막트랜지스터의 제조방법 Download PDFInfo
- Publication number
- KR20050120368A KR20050120368A KR1020040045687A KR20040045687A KR20050120368A KR 20050120368 A KR20050120368 A KR 20050120368A KR 1020040045687 A KR1020040045687 A KR 1020040045687A KR 20040045687 A KR20040045687 A KR 20040045687A KR 20050120368 A KR20050120368 A KR 20050120368A
- Authority
- KR
- South Korea
- Prior art keywords
- metal layer
- thin film
- film transistor
- manufacturing
- gate electrode
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000010409 thin film Substances 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 78
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 239000010408 film Substances 0.000 claims abstract description 24
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011229 interlayer Substances 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 51
- 239000000243 solution Substances 0.000 claims description 13
- 239000011733 molybdenum Substances 0.000 claims description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 7
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005224 laser annealing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000002381 plasma Anatomy 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 150000002751 molybdenum Chemical class 0.000 description 1
Classifications
-
- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
- H01L21/02063—Cleaning during device manufacture during, before or after processing of insulating layers the processing being the formation of vias or contact holes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
Abstract
Description
Claims (11)
- 소오스/드레인영역을 포함하는 반도체층패턴 및 게이트전극이 구비되는 투명절연기판 상부에 층간절연막을 형성하는 공정과,상기 반도체층패턴 및 게이트전극에서 콘택영역을 노출시키는 콘택홀을 형성하는 공정과,상기 콘택홀을 세정하되, 불산용액과 탈이온수 혼합용액을 세정액으로 이용하여 세정하는 공정과,상기 콘택홀을 통하여 소오스/드레인영역에 접속되는 소오스/드레인전극을 형성하는 공정을 포함하는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 게이트전극은 하부금속층과 상부금속층의 적층구조로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 2 항에 있어서,상기 하부금속층은 알루미늄 또는 알루미늄합금으로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 2 항에 있어서,상기 하부금속층은 1000 내지 4000Å 두께로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 2 항에 있어서,상기 상부금속층은 Mo 또는 MoW으로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 2 항에 있어서,상기 상부금속층은 100 내지 1000Å 두께로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 게이트전극은 몰리브덴 계열 금속층, 알루미늄 계열 금속층 및 몰리브덴 계열 금속층의 적층구조로 형성되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 세정공정은 10 내지 60초간 실시되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 세정공정은 스핀방법, 배쓰(bath)에 디핑(dipping)하는 방법 및 분사방법으로 이루어지는 군에서 선택되는 한 가지 방법으로 실시되는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 불산용액은 0.01 내지 0.5%의 농도를 갖는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
- 제 1 항에 있어서,상기 혼합용액은 탈이온수 대신 수소수를 포함하는 것을 특징으로 하는 박막 트랜지스터의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040045687A KR100635069B1 (ko) | 2004-06-18 | 2004-06-18 | 박막트랜지스터의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040045687A KR100635069B1 (ko) | 2004-06-18 | 2004-06-18 | 박막트랜지스터의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050120368A true KR20050120368A (ko) | 2005-12-22 |
KR100635069B1 KR100635069B1 (ko) | 2006-10-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040045687A KR100635069B1 (ko) | 2004-06-18 | 2004-06-18 | 박막트랜지스터의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100635069B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8343796B2 (en) | 2008-07-02 | 2013-01-01 | Samsung Display Co., Ltd. | Method of fabricating thin film transistor by crystallization through metal layer forming source and drain electrodes |
-
2004
- 2004-06-18 KR KR1020040045687A patent/KR100635069B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8343796B2 (en) | 2008-07-02 | 2013-01-01 | Samsung Display Co., Ltd. | Method of fabricating thin film transistor by crystallization through metal layer forming source and drain electrodes |
Also Published As
Publication number | Publication date |
---|---|
KR100635069B1 (ko) | 2006-10-16 |
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