KR100266278B1 - 반도체 장치의 콘택홀 세정 방법 - Google Patents
반도체 장치의 콘택홀 세정 방법 Download PDFInfo
- Publication number
- KR100266278B1 KR100266278B1 KR1019980019867A KR19980019867A KR100266278B1 KR 100266278 B1 KR100266278 B1 KR 100266278B1 KR 1019980019867 A KR1019980019867 A KR 1019980019867A KR 19980019867 A KR19980019867 A KR 19980019867A KR 100266278 B1 KR100266278 B1 KR 100266278B1
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- Prior art keywords
- contact hole
- oxide film
- natural oxide
- cleaning
- gas
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 75
- 238000004140 cleaning Methods 0.000 title claims abstract description 62
- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000005530 etching Methods 0.000 claims abstract description 20
- 238000001312 dry etching Methods 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 28
- 238000000151 deposition Methods 0.000 claims description 17
- 230000008021 deposition Effects 0.000 claims description 17
- 239000012298 atmosphere Substances 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 32
- 239000010453 quartz Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005108 dry cleaning Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 240000007429 Tor tor Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76814—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
-
- 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
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- 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
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
- H01L21/31138—Etching organic layers by chemical means by dry-etching
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (14)
- 반도체 기판 상에 절연층을 형성하는 단계;상기 절연층을 건식 식각 방법으로 식각 하여 콘택홀을 형성하는 단계;상기 콘택홀 하부의 자연 산화막, 자연 산화막 하부의 손상된 실리콘층, 그리고 콘택홀 양측벽의 손상된 절연층을 동시에 제거하되, 플라즈마로 여기된 N 및 H를 포함하는 제 1 식각 가스와, N 및 F를 포함하는 제 2 식각 가스를 동시에 사용하여 제거하는 단계를 포함하는 반도체 장치의 콘택홀 세정 방법.
- 제 1 항에 있어서,상기 절연층은, 서로 다른 방법에 의해 형성된 다층 산화막인 반도체 장치의 콘택홀 세정 방법.
- 제 1 항에 있어서,상기 제 1 식각 가스는 N2 및 H2를 포함하고, 상기 제 2 식각 가스는 NF3을 포함하는 반도체 장치의 콘택홀 세정 방법.
- 제 3 항에 있어서,상기 N2 가스의 유량은 50sccm 내지 1000sccm 이고, H2 가스의 유량은 5sccm 내지 100sccm 이며, 상기 NF3 가스의 유량은 1sccm 내지 100sccm 인 반도체 장치의 콘택홀 세정 방법.
- 제 1 항에 있어서,상기 자연 산화막 및 손상층들을 제거하는 공정은, 0.01torr 내지 100torr 범위 내의 압력 및 0℃ 내지 200℃ 범위 내의 온도 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 제 1 항에 있어서,상기 자연 산화막 및 손상층들을 제거하는 공정은, 상기 자연 산화막이 2Å 내지 200Å의 범위 내로 식각 되는 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 제 1 항에 있어서,상기 자연 산화막 및 손상층들을 제거하는 공정은, 자연 산화막, 절연층, 그리고 반도체 기판이 약 4Å/min의 식각률로 식각 되는 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 트랜스퍼 모듈(transfer module), 전 세정 모듈(pre-cleaning module), 그리고 증착 모듈(deposition module)을 갖는 반도체 제조 장치를 이용한 콘택홀 세정 방법에 있어서,반도체 기판 상의 절연층을 식각 하여 형성된 콘택홀을 갖는 반도체 기판을 상기 트랜스퍼 모듈로 로딩(loading)하는 단계;상기 트랜스퍼 모듈의 분위기를 진공으로 만드는 단계;상기 반도체 기판을 상기 전 세정 모듈로 이동하는 단계; 및콘택홀 하부의 자연 산화막, 자연 산화막 하부의 손상된 실리콘층, 그리고 콘택홀 양측벽의 손상된 절연층을 동시에 제거하는 단계를 포함하는 반도체 장치의 콘택홀 세정 방법.
- 제 8 항에 있어서,상기 전 세정 모듈 내의 제거 공정은, N2 및 H2 가스를 리모트 플라즈마로 여기시키는 단계;상기 리모트 플라즈마와 동시에 NF3 가스를 사용하여 상기 자연 산화막 및 손상층들을 제거하는 단계를 포함하는 반도체 장치의 콘택홀 세정 방법.
- 제 9 항에 있어서,상기 N2 가스의 유량은 50sccm 내지 1000sccm 이고, H2 가스의 유량은 5sccm 내지 100sccm 이며, 상기 NF3 가스의 유량은 1sccm 내지 100sccm 인 반도체 장치의 콘택홀 세정 방법.
- 제 8 항에 있어서,상기 전 세정 모듈 내의 제거 공정은, 0.01torr 내지 100torr 범위 내의 압력 및 0℃ 내지 200℃ 범위 내의 온도 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 제 8 항에 있어서,상기 전 세정 모듈 내의 제거 공정은, 상기 자연 산화막이 2Å 내지 200Å의 범위 내로 식각 되는 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 제 8 항에 있어서,상기 전 세정 모듈 내의 제거 공정은, 상기 자연 산화막, 절연층, 그리고 반도체 기판이 4Å/min의 식각률로 식각 되는 조건으로 수행되는 반도체 장치의 콘택홀 세정 방법.
- 제 8 항에 있어서,상기 콘택홀 세정 후, 상기 반도체 기판을 상기 증착 모듈로 이동하는 단계; 및인 시츄(in-situ)로 상기 콘택홀을 도전층으로 채우는 단계를 더 포함하는 반도체 장치의 콘택홀 세정 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980019867A KR100266278B1 (ko) | 1998-05-29 | 1998-05-29 | 반도체 장치의 콘택홀 세정 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019980019867A KR100266278B1 (ko) | 1998-05-29 | 1998-05-29 | 반도체 장치의 콘택홀 세정 방법 |
Publications (2)
Publication Number | Publication Date |
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KR19990086741A KR19990086741A (ko) | 1999-12-15 |
KR100266278B1 true KR100266278B1 (ko) | 2000-10-02 |
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KR1019980019867A KR100266278B1 (ko) | 1998-05-29 | 1998-05-29 | 반도체 장치의 콘택홀 세정 방법 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100404560B1 (ko) * | 2001-01-06 | 2003-11-05 | 삼성전자주식회사 | 반도체 장치의 제조방법 |
KR100414947B1 (ko) * | 2001-06-29 | 2004-01-16 | 주식회사 하이닉스반도체 | 반도체 소자의 콘택 플러그 형성 방법 |
KR100414564B1 (ko) * | 2001-06-29 | 2004-01-07 | 주식회사 하이닉스반도체 | 반도체 소자의 콘택 플러그 형성 방법 |
KR20030049086A (ko) * | 2001-12-14 | 2003-06-25 | (주)에이피엘 | 기판 건식 세정 장치 및 방법 |
KR20060076437A (ko) * | 2004-12-29 | 2006-07-04 | 동부일렉트로닉스 주식회사 | 반도체 소자의 콘택홀 형성방법 |
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1998
- 1998-05-29 KR KR1019980019867A patent/KR100266278B1/ko not_active IP Right Cessation
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