KR101835755B1 - 박막 제조방법 및 기판 처리 장치 - Google Patents
박막 제조방법 및 기판 처리 장치 Download PDFInfo
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- KR101835755B1 KR101835755B1 KR1020120063304A KR20120063304A KR101835755B1 KR 101835755 B1 KR101835755 B1 KR 101835755B1 KR 1020120063304 A KR1020120063304 A KR 1020120063304A KR 20120063304 A KR20120063304 A KR 20120063304A KR 101835755 B1 KR101835755 B1 KR 101835755B1
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- 239000000758 substrate Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000010409 thin film Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 433
- 238000002347 injection Methods 0.000 claims abstract description 260
- 239000007924 injection Substances 0.000 claims abstract description 260
- 238000009792 diffusion process Methods 0.000 claims abstract description 74
- 239000012495 reaction gas Substances 0.000 claims abstract description 51
- 238000010926 purge Methods 0.000 claims description 60
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 50
- 229910052786 argon Inorganic materials 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 23
- 238000000151 deposition Methods 0.000 claims description 18
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 10
- BIVNKSDKIFWKFA-UHFFFAOYSA-N N-propan-2-yl-N-silylpropan-2-amine Chemical compound CC(C)N([SiH3])C(C)C BIVNKSDKIFWKFA-UHFFFAOYSA-N 0.000 claims description 5
- 150000002366 halogen compounds Chemical class 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- OWKFQWAGPHVFRF-UHFFFAOYSA-N n-(diethylaminosilyl)-n-ethylethanamine Chemical compound CCN(CC)[SiH2]N(CC)CC OWKFQWAGPHVFRF-UHFFFAOYSA-N 0.000 claims description 4
- RTCWKUOBAKIBGZ-UHFFFAOYSA-N N-[ethyl(methyl)amino]silyl-N-methylethanamine Chemical compound CCN(C)[SiH2]N(C)CC RTCWKUOBAKIBGZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 claims description 2
- 230000008021 deposition Effects 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 238000000427 thin-film deposition Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000007736 thin film deposition technique Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- WEKIJJOSGXVNNE-UHFFFAOYSA-N CC[SiH2]NC Chemical compound CC[SiH2]NC WEKIJJOSGXVNNE-UHFFFAOYSA-N 0.000 description 1
- QKJMOUFHFLUIQL-UHFFFAOYSA-N [amino(methyl)silyl]ethane Chemical compound CC[SiH](C)N QKJMOUFHFLUIQL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
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- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/505—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using radio frequency discharges
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Abstract
Description
도 2는 가스분사장치의 사시도.
도 3은 본 발명의 실시 예에 따른 박막 제조방법을 이용하여 박막을 증착하는 과정을 보여주는 순서도.
도 4는 가스 분사영역별로 공급되는 가스의 종류를 도식화한 개념도.
도 5는 가스 분사영역에 플라즈마가 형성되는 형태를 보여주는 개념도.
104 : 배기구 106 : 관통공
110 : 본체 112 : 탑리드
114 : 가스도입구 120 : 기판지지부
121 : 회전축 122 : 지지플레이트
124 : 기판안착부 130C : 중앙가스 분사유닛
130S : 원료가스 분사유닛 130R : 반응가스 분사유닛
130P : 퍼지가스 분사유닛 132C :가스분사공
132S : 원료가스 분사공 132R : 반응가스 분사공
132P : 퍼지가스 분사공 134 : 절연체
Claims (28)
- 복수의 기판 상에 박막을 제조하는 방법에 있어서,
상기 복수의 기판을 챔버 내부의 기판지지부에 안착시키고, 상기 기판지지부를 회전시키는 과정; 및
상기 기판지지부의 상부에 구비되는 가스분사장치를 통해 상기 기판 상에 원료가스를 분사하는 원료가스 분사영역과 반응가스를 분사하는 반응가스 분사영역 각각에 원료가스와 반응가스를 공급하여 상기 복수의 기판 상에 박막을 증착하는 과정;을 포함하고,
상기 박막을 증착하는 과정에서 상기 반응가스 분사영역에 플라즈마를 형성하고,
상기 반응가스 분사영역에 형성된 플라즈마의 확산을 방지하기 위하여 상기 원료가스 분사영역과 상기 반응가스 분사영역 사이에 확산방지가스를 분사하며,
상기 확산방지가스가 분사되는 확산방지가스 분사영역과 상기 원료가스 분사영역 사이에 상기 확산방지가스와 상기 원료가스의 혼합을 방지하기 위한 퍼지가스를 분사하는 박막 제조방법. - 삭제
- 청구항 1에 있어서,
상기 퍼지가스는 아르곤 가스를 포함하는 박막 제조방법. - 청구항 3에 있어서,
상기 확산방지가스는 네거티브 그로우 가스인 박막 제조방법. - 청구항 4에 있어서,
상기 확산방지가스는 O2 가스 또는 N2 가스를 포함하는 박막 제조방법. - 청구항 5에 있어서,
상기 확산방지가스는 아르곤 가스를 더 포함하는 박막 제조방법. - 청구항 1에 있어서,
상기 원료가스는 아민 계열을 함유하는 가스를 포함하는 가스인 박막 제조방법. - 청구항 7에 있어서,
상기 원료가스는 비스다이에틸아미노실란(Bis(diethylamino) Silane, BDEAS), 다이이소프로필아미노실란(Diisopropylamino silane, DIPAS) 및 비스에틸메틸아미노실란(Bis(ethylmethylamino) Silane, BEMAS) 중 적어도 어느 하나를 포함하는 박막 제조방법. - 청구항 1에 있어서,
상기 원료가스는 할로겐화합물을 함유하는 가스를 포함하는 박막 제조방법. - 청구항 9에 있어서,
상기 원료가스는 헥사클로로다이실란(Hexaclorodisilane, HCDS) 및 디클로로실란(Diclorodisilane, DCS) 중 적어도 어느 하나를 포함하는 박막 제조방법. - 내부 공간이 형성된 챔버;
상기 챔버의 내부에 회전 가능하게 설치되어 복수의 기판을 지지하는 기판지지부;
상기 챔버의 상부에 구비되며, 적어도 하나의 가스도입구가 형성된 탑리드;
상기 기판지지부 상부에 구비되어 상기 기판지지부 상부에 방사상으로 가스를 분사하는 복수의 가스분사유닛을 포함하는 가스분사장치; 및
상기 가스분사장치와 상기 기판지지부 사이에 형성되는 가스분사영역의 일부에 플라즈마를 형성하는 플라즈마 발생부;를 포함하며,
상기 복수의 가스분사유닛은 원료가스를 분사하는 원료가스 분사유닛, 반응가스를 분사하는 반응가스 분사유닛, 확산방지가스를 분사하는 확산방지가스 분사유닛 및 퍼지가스를 분사하는 퍼지가스 분사유닛을 포함하고,
상기 가스분사장치와 상기 기판지지부 사이에는 원료가스 분사영역과, 반응가스 분사영역과, 퍼지가스 분사영역 및 확산방지가스 분사영역이 형성되고,
상기 플라즈마 발생부는 상기 반응가스 분사영역에 플라즈마를 형성하며,
상기 확산방지가스 분사영역은 상기 반응가스 분사영역에 형성되는 플라즈마의 확산을 방지하도록 상기 원료가스 분사영역과 상기 반응가스 분사영역 사이에 형성되고,
상기 퍼지가스 분사영역은 상기 확산방지가스 분사영역과 상기 원료가스 분사영역 사이에 형성되는 기판 처리 장치. - 삭제
- 청구항 11에 있어서,
상기 가스분사장치의 중심부와 상기 기판지지부 사이에 중앙 가스분사영역이 형성되는 기판 처리 장치. - 청구항 13에 있어서,
상기 중앙가스 분사영역에는 상기 확산방지가스 분사영역과 동일한 가스가 분사되는 기판 처리 장치. - 삭제
- 삭제
- 청구항 14에 있어서,
상기 플라즈마 발생부는 상기 반응가스 분사유닛과 상기 기판지지부 사이에 RF가 인가되어 플라즈마를 발생시키는 기판 처리 장치. - 삭제
- 삭제
- 삭제
- 청구항 11에 있어서,
상기 퍼지가스 분사영역에는 아르곤 가스가 분사되는 기판 처리 장치. - 청구항 13에 있어서,
상기 확산방지가스 분사영역에는 네거티브 그로우 가스가 분사되는 기판 처리 장치. - 청구항 22에 있어서,
상기 확산방지가스 분사영역에는 O2 가스 또는 N2 가스가 분사되는 기판 처리 장치. - 청구항 23에 있어서,
상기 확산방지가스 분사영역에는 아르곤 가스가 분사되는 기판 처리 장치. - 청구항 11에 있어서,
상기 원료가스 분사영역에는 아민 계열을 함유하는 가스가 분사되는 기판 처리 장치. - 청구항 25에 있어서,
상기 원료가스 분사영역에는 비스다이에틸아미노실란(Bis(diethylamino) Silane, BDEAS), 다이이소프로필아미노실란(Diisopropylamino silane, DIPAS) 및 비스에틸메틸아미노실란(Bis(ethylmethylamino) Silane, BEMAS) 중 적어도 어느 하나를 포함하는 가스가 분사되는 기판 처리 장치. - 청구항 11에 있어서,
상기 원료가스 분사영역에는 할로겐화합물을 함유하는 가스가 분사되는 기판 처리 장치. - 청구항 27에 있어서,
상기 원료가스 분사영역에는 헥사클로로다이실란(Hexaclorodisilane, HCDS) 및 디클로로실란(Diclorodisilane, DCS) 중 적어도 어느 하나를 포함하는 가스가 분사되는 기판 처리 장치.
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