KR102491924B1 - 성막 방법 및 성막 장치 - Google Patents
성막 방법 및 성막 장치 Download PDFInfo
- Publication number
- KR102491924B1 KR102491924B1 KR1020190018945A KR20190018945A KR102491924B1 KR 102491924 B1 KR102491924 B1 KR 102491924B1 KR 1020190018945 A KR1020190018945 A KR 1020190018945A KR 20190018945 A KR20190018945 A KR 20190018945A KR 102491924 B1 KR102491924 B1 KR 102491924B1
- Authority
- KR
- South Korea
- Prior art keywords
- gas supply
- gas
- supply unit
- cleaning
- source gas
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 118
- 238000004140 cleaning Methods 0.000 claims abstract description 143
- 239000002994 raw material Substances 0.000 claims abstract description 90
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 66
- 239000000758 substrate Substances 0.000 claims abstract description 55
- 238000010926 purge Methods 0.000 claims abstract description 52
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 22
- 238000000151 deposition Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 541
- 238000012545 processing Methods 0.000 claims description 39
- 238000011144 upstream manufacturing Methods 0.000 claims description 21
- 239000012495 reaction gas Substances 0.000 claims description 17
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000008021 deposition Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 106
- 235000012431 wafers Nutrition 0.000 description 71
- 238000000926 separation method Methods 0.000 description 41
- 230000001590 oxidative effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000005108 dry cleaning Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005121 nitriding Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002052 molecular layer Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 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
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005530 etching 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
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68764—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a movable susceptor, stage or support, others than those only rotating on their own vertical axis, e.g. susceptors on a rotating caroussel
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- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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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
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
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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
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- H01L21/02107—Forming insulating materials on a substrate
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- H—ELECTRICITY
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- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67748—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber horizontal transfer of a single workpiece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Abstract
원료 가스 공급부와, 클리닝 가스 공급부를 갖는 성막 장치를 사용한 성막 방법이며,
상기 클리닝 가스 공급부에 퍼지 가스를 공급하는 일 없이 상기 원료 가스 공급부로부터 원료 가스를 기판에 공급하여 상기 원료 가스를 상기 기판에 흡착시키는 공정과,
상기 클리닝 가스 공급부에 퍼지 가스를 공급하는 일 없이, 상기 원료 가스가 흡착된 상기 기판에 상기 원료 가스와 반응하여 반응 생성물을 생성 가능한 반응 가스를 공급하여, 상기 기판 상에 상기 반응 생성물을 퇴적시키는 공정을 갖는다.
Description
도 2는 본 발명의 실시 형태에 관한 성막 장치의 진공 용기 내의 구성을 도시하는 개략 사시도이다.
도 3은 본 발명의 실시 형태에 관한 성막 장치의 진공 용기 내의 구성을 도시하는 개략 평면도이다.
도 4는 본 발명의 실시 형태에 관한 성막 장치의 회전 테이블의 동심원을 따른 진공 용기의 개략 단면도이다.
도 5는 본 발명의 실시 형태에 관한 성막 장치의 다른 개략 단면도이다.
도 6은 본 발명의 실시 형태에 관한 성막 장치의 샤워 헤드의 저면판의 하면의 구성의 일례를 도시한 도면이다.
도 7은 본 발명의 실시 형태에 관한 성막 장치의 샤워 헤드의 저면판의 상면의 구성의 일례를 도시한 도면이다.
도 8은 본 발명의 실시 형태에 관한 성막 장치의 샤워 헤드의 전체 구성의 일례를 도시한 사시도이다.
도 9는 원료 가스 공급부 및 클리닝 가스 공급부를 노즐로 구성한 경우의 실시 형태를 도시한 평면도이다.
도 10은 원료 가스 공급부 및 클리닝 가스 공급부를 노즐로 구성한 경우의 실시 형태를 도시한 단면도이다.
도 11은 본 실시 형태에 관한 성막 방법의 제1 시퀀스를 나타낸 도면이다.
도 12는 본 실시 형태에 관한 성막 방법의 제2 시퀀스를 나타낸 도면이다.
2 : 회전 테이블
24 : 오목부
30 : 샤워 헤드
31 : 저면판
32 : 원료 가스 공급부
33 : 축측 원료 가스 공급부
34 : 외주측 원료 가스 공급부
35 : 클리닝 가스 공급부
50 : 반응 가스 노즐
60 : 클리닝 가스 노즐
32a 내지 35a : 가스 토출 구멍
32b 내지 35b : 가스 도입로
32c 내지 35c : 가스 도입부
121 내지 125 : 유량 제어기
131 내지 135 : 가스 공급원
P1, P2 : 처리 영역
W : 웨이퍼
Claims (13)
- 원료 가스 공급부와, 클리닝 가스 공급부를 갖는 성막 장치를 사용한 성막 방법이며,
상기 성막 장치의 처리실에 기판을 반입하는 반입 공정과,
상기 처리실 내의 압력 및 온도를 포함하는 성막 조건을 조정하는 성막 전 처리 공정과,
상기 클리닝 가스 공급부에 퍼지 가스를 공급하는 일 없이 상기 원료 가스 공급부로부터 원료 가스를 기판에 공급하여 상기 원료 가스를 상기 기판에 흡착시키는 공정과,
상기 클리닝 가스 공급부에 퍼지 가스를 공급하는 일 없이, 상기 원료 가스가 흡착된 상기 기판에 상기 원료 가스와 반응하여 반응 생성물을 생성 가능한 반응 가스를 공급하여, 상기 기판 상에 상기 반응 생성물을 퇴적시키는 공정과,
상기 원료 가스를 상기 기판에 흡착시키는 공정 및 상기 기판 상에 상기 반응 생성물을 퇴적시키는 공정을, 상기 반응 생성물이 소정의 두께가 될 때까지 주기적으로 반복하는 성막 공정과,
상기 성막 공정 후에, 상기 원료 가스의 공급을 정지하여 상기 처리실 내의 상태를 조정하는 성막 후 처리 공정과,
상기 기판을 상기 처리실로부터 반출하는 반출 공정을 더 갖고,
상기 반입 공정, 상기 성막 전 처리 공정, 상기 성막 공정, 상기 성막 후 처리 공정 및 상기 반출 공정을 주기적으로 반복하고, 상기 성막 공정 이외의 상기 반입 공정, 상기 성막 전 처리 공정, 상기 성막 후 처리 공정 및 상기 반출 공정의 일부 또는 모든 기간에 있어서, 상기 클리닝 가스 공급부에 퍼지 가스를 공급하여 상기 클리닝 가스 공급부를 퍼지하는 클리닝 라인 퍼지 공정을 더 갖는, 성막 방법. - 제1항에 있어서,
상기 클리닝 라인 퍼지 공정은, 상기 반출 공정과 상기 반입 공정 사이의 상기 처리실 내에 상기 기판이 존재하지 않을 때에 행해지는, 성막 방법. - 제1항 또는 제2항에 있어서,
상기 처리실은 복수의 기판을 수용 가능하고,
상기 반입 공정 및 상기 반출 공정은, 상기 복수의 기판 중 1매를 상기 처리실로부터 반출하고 나서 반출된 스페이스에 새로운 기판을 반입하는 교체 공정을 포함하는, 성막 방법. - 제1항 또는 제2항에 있어서,
상기 클리닝 가스 공급부는, 상기 원료 가스 공급부의 근방에 배치되어 있는, 성막 방법. - 제1항 또는 제2항에 있어서,
상기 클리닝 가스 공급부는, 상기 처리실 내에 설치된 배기구로부터의 배기에 의해 형성되는 배기 방향에 있어서, 상기 원료 가스 공급부의 상류측에 설치된, 성막 방법. - 제1항 또는 제2항에 있어서,
상기 처리실 내에는, 복수의 기판을 주위 방향을 따라 적재 가능한 기판 적재 영역을 갖는 회전 테이블이 설치되고,
상기 회전 테이블의 상방에 있어서, 상기 회전 테이블의 회전 방향을 따라 서로 이격되어 원료 가스 흡착 영역 및 반응 생성물 퇴적 영역이 마련되고,
상기 회전 테이블을 회전시킴으로써, 상기 복수의 기판에 상기 원료 가스 흡착 영역 및 상기 반응 생성물 퇴적 영역을 순차 통과시키고,
상기 복수의 기판이 상기 원료 가스 흡착 영역을 통과하였을 때에 상기 원료 가스를 상기 기판에 흡착시키는 공정을 실행하고,
상기 복수의 기판이 상기 반응 생성물 퇴적 영역을 통과하였을 때에 상기 기판 상에 상기 반응 생성물을 퇴적시키는 공정을 실행하는, 성막 방법. - 제6항에 있어서,
상기 원료 가스 공급부 및 상기 클리닝 가스 공급부는, 상기 회전 테이블의 반경 방향을 따라 연장된 직선적인 평면 형상을 가짐과 함께, 평행하게 배열되어, 상기 원료 가스 흡착 영역 내에 설치되어 있는, 성막 방법. - 제7항에 있어서,
상기 원료 가스 공급부 및 상기 클리닝 가스 공급부는, 샤워 헤드의 저면에 설치되어 있는, 성막 방법. - 제7항에 있어서,
상기 원료 가스 공급부 및 상기 클리닝 가스 공급부는, 상기 회전 테이블에 평행하게 설치된 정류판으로 덮인 서로 독립된 가스 노즐인, 성막 방법. - 처리실과,
상기 처리실 내에 설치되고, 주위 방향을 따라 기판을 적재 가능한 기판 적재 영역을 갖는 회전 테이블과,
상기 회전 테이블의 표면에 원료 가스를 공급 가능하고, 상기 회전 테이블의 반경 방향을 따라 연장되어, 상기 기판 적재 영역을 상기 반경 방향에 있어서 덮도록 설치된 원료 가스 공급부와,
상기 원료 가스 공급부의 근방에서, 상기 원료 가스 공급부와 평행하게 설치된 클리닝 가스 공급부와,
상기 원료 가스 공급부 및 상기 클리닝 가스 공급부의 상기 회전 테이블의 회전 방향 하류측에, 상기 원료 가스 공급부 및 상기 클리닝 가스 공급부와 이격되어 설치되고, 상기 원료 가스와 반응하여 반응 생성물을 퇴적 가능한 반응 가스를 공급하는 반응 가스 공급부와,
상기 클리닝 가스 공급부로부터 퍼지 가스를 공급하지 않는 상태에서 상기 원료 가스 공급부로부터 상기 원료 가스, 상기 반응 가스 공급부로부터 상기 반응 가스를 공급시킴과 함께, 상기 회전 테이블을 회전시켜 상기 기판의 표면으로의 상기 원료 가스의 흡착, 상기 기판의 표면에 흡착된 상기 원료 가스와 상기 반응 가스의 반응에 의해 상기 반응 생성물을 상기 기판의 표면 상에 퇴적시키는 성막 공정을 실시하는 제어를 행하는 제어부를 갖는, 성막 장치. - 제10항에 있어서,
상기 제어부는, 상기 성막 공정을 실시하고 있지 않은 어느 때에, 상기 클리닝 가스 공급부로부터 상기 퍼지 가스를 공급시키는 제어를 행하는, 성막 장치. - 삭제
- 삭제
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