KR100792315B1 - 미세결정 실리콘층의 형성방법 및 이를 이용한 박막트랜지스터의 제조방법 - Google Patents
미세결정 실리콘층의 형성방법 및 이를 이용한 박막트랜지스터의 제조방법 Download PDFInfo
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- KR100792315B1 KR100792315B1 KR1020060072601A KR20060072601A KR100792315B1 KR 100792315 B1 KR100792315 B1 KR 100792315B1 KR 1020060072601 A KR1020060072601 A KR 1020060072601A KR 20060072601 A KR20060072601 A KR 20060072601A KR 100792315 B1 KR100792315 B1 KR 100792315B1
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- silicon layer
- microcrystalline silicon
- forming
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- thin film
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- 229910021424 microcrystalline silicon Inorganic materials 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000010409 thin film Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims abstract description 14
- 238000009832 plasma treatment Methods 0.000 claims description 14
- 238000005530 etching Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052710 silicon Inorganic materials 0.000 abstract description 11
- 239000010703 silicon Substances 0.000 abstract description 11
- 229910004074 SiF6 Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 146
- 238000000151 deposition Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 230000006911 nucleation Effects 0.000 description 6
- 238000010899 nucleation Methods 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 239000013081 microcrystal Substances 0.000 description 5
- 229910004205 SiNX Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000005224 laser annealing Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 239000004065 semiconductor Substances 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
- 239000010936 titanium Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- -1 chromium (Cr) Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- H01L21/04—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
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
- H01L21/205—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy using reduction or decomposition of a gaseous compound yielding a solid condensate, i.e. chemical deposition
- H01L21/2053—Expitaxial deposition of elements of Group IV of the Periodic System, e.g. Si, Ge
-
- 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
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
-
- 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
- H01L29/66765—Lateral single gate single channel transistors with inverted structure, i.e. the channel layer is formed after the gate
Abstract
Description
Claims (11)
- 삭제
- 삭제
- 미세결정 실리콘층의 형성방법에 있어서,기판 상에 절연층을 형성하는 단계;상기 절연층 표면을 플라즈마 처리하는 단계; 및상기 표면처리된 절연층 상부에 PECVD 방식을 사용하여 미세결정 실리콘층을 형성하는 단계를 포함하며,상기 플라즈마 처리는 SF6 또는 H2를 이용하여 수행하는 미세결정 실리콘층 형성방법.
- 제3 항에 있어서,H2 플라즈마 처리는 H2 유량이 2000 내지 3000 sccm, 압력이 1000 내지 2000 mils, 파워가 800 내지 1300 W, 시간이 5 내지 20 sec에서 수행하는 미세결정 실리콘층 형성방법.
- 제3 항에 있어서, SF6 플라즈마 처리는 SF6 유량이 100 내지 200 sccm, 압력이 30 내지 80 mTorr, 파워가 500 내지 1000W, 시간이 5 내지 20 sec에서 수행하는 미세결정 실리콘층 형성방법.
- 삭제
- 삭제
- 기판 상부에 게이트 전극과 이를 덮는 게이트 절연층을 형성하는 단계;상기 게이트 절연층의 표면을 플라즈마 처리하는 단계;상기 표면처리된 절연층 상부에 PECVD 방식을 사용하여 미세결정 실리콘층을 형성하고 이를 선택적으로 식각하여 활성층을 형성하는 단계; 및상기 활성층에 접속되는 소스 및 드레인 전극을 형성하는 단계를 포함하며,상기 미세결정 실리콘층은 SiH4:H2의 비율을 1:20 내지 1:120로 하여 형성하는 박막트랜지스터의 제조방법.
- 제8 항에 있어서,상기 플라즈마 처리는 SF6 또는 H2를 이용하여 수행하는 박막 트랜지스터의 제조방법.
- 제8 항에 있어서, 상기 미세결정 실리콘층의 상부에 비정질 실리콘층을 형성하는 단계를 더 포함하고, 상기 미세결정 실리콘층 및 상기 비정질 실리콘층을 선택적으로 식각하여 활성층을 형성하는 박막 트랜지스터의 제조방법.
- 제3 항에 있어서, 상기 미세결정 실리콘층 상부에 PECVD 방식을 이용하여 비정질 실리콘층을 형성하는 단계를 더 포함하는 미세결정 실리콘층 형성방법.
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KR1020060072601A KR100792315B1 (ko) | 2006-08-01 | 2006-08-01 | 미세결정 실리콘층의 형성방법 및 이를 이용한 박막트랜지스터의 제조방법 |
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KR1020060072601A KR100792315B1 (ko) | 2006-08-01 | 2006-08-01 | 미세결정 실리콘층의 형성방법 및 이를 이용한 박막트랜지스터의 제조방법 |
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KR100792315B1 true KR100792315B1 (ko) | 2008-01-07 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000002538A (ko) * | 1998-06-22 | 2000-01-15 | 김영환 | 액정표시소자에서의 박막 트랜지스터의 제조방법 |
KR20020032586A (ko) * | 2000-07-18 | 2002-05-03 | 요트.게.아. 롤페즈 | 박막 트랜지스터 및 그 제조 방법 |
US6890803B2 (en) | 2003-05-20 | 2005-05-10 | Au Optronics Corp. | Method for forming a thin film transistor of an organic light emitting display |
KR20050068491A (ko) * | 2003-12-30 | 2005-07-05 | 엘지.필립스 엘시디 주식회사 | 반도체층 형성 방법 |
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- 2006-08-01 KR KR1020060072601A patent/KR100792315B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000002538A (ko) * | 1998-06-22 | 2000-01-15 | 김영환 | 액정표시소자에서의 박막 트랜지스터의 제조방법 |
KR20020032586A (ko) * | 2000-07-18 | 2002-05-03 | 요트.게.아. 롤페즈 | 박막 트랜지스터 및 그 제조 방법 |
US6890803B2 (en) | 2003-05-20 | 2005-05-10 | Au Optronics Corp. | Method for forming a thin film transistor of an organic light emitting display |
KR20050068491A (ko) * | 2003-12-30 | 2005-07-05 | 엘지.필립스 엘시디 주식회사 | 반도체층 형성 방법 |
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