KR100686761B1 - 에칭 방법 - Google Patents
에칭 방법 Download PDFInfo
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- KR100686761B1 KR100686761B1 KR1020000062233A KR20000062233A KR100686761B1 KR 100686761 B1 KR100686761 B1 KR 100686761B1 KR 1020000062233 A KR1020000062233 A KR 1020000062233A KR 20000062233 A KR20000062233 A KR 20000062233A KR 100686761 B1 KR100686761 B1 KR 100686761B1
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- South Korea
- Prior art keywords
- etching
- flow rate
- film
- gas
- wafer
- Prior art date
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- 238000005530 etching Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000008569 process Effects 0.000 claims abstract description 40
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 14
- -1 polysiloxane Polymers 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000011368 organic material Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 abstract description 77
- 239000010410 layer Substances 0.000 description 14
- 239000011229 interlayer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- H01L21/04—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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion 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
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Drying Of Semiconductors (AREA)
Abstract
Description
Claims (12)
- 기밀한 상태인 처리실내에 처리 가스를 도입하고, 상기 처리실내에 배치된 기판상에 형성된 에칭 대상막에 대한 에칭 방법에 있어서,상기 처리 가스는 적어도 CF4와 N2를 포함하고,상기 에칭 대상막은 상층의 Si를 함유하는 유기물막 및 하층의 SiO2막으로 이루어지는 것을 특징으로 하는 에칭 방법.
- 제 1 항에 있어서,상기 Si를 함유하는 유기물막은 C, H를 함유하는 SiO2인 것을 특징으로 하는 에칭 방법.
- 제 1 항에 있어서,상기 Si를 함유하는 유기물막의 유전 상수는 3.0 이하인 것을 특징으로 하는 에칭 방법.
- 제 1 항에 있어서,상기 Si를 함유하는 유기물막은 유기 폴리실록산막인 것을 특징으로 하는 에칭 방법.
- 제 1 항에 있어서,상기 처리 가스는 Ar를 또한 포함하는 것을 특징으로 하는 에칭 방법.
- 제 1 항에 있어서,상기 처리 가스의 상기 CF4와 상기 N2의 유량비는 실질적으로 1≤(N2의 유량/CF4의 유량)≤4인 것을 특징으로 하는 에칭 방법.
- 기밀한 상태인 처리실내에 처리 가스를 도입하고, 상기 처리실내에 배치된 기판상에 형성된 에칭 대상막에 대한 에칭 방법에 있어서,상기 처리 가스는 적어도 C4F8와 N2을 포함하고,상기 에칭 대상막은 상층의 Si를 함유하는 유기물막 및 하층의 SiN막으로 이 루어지는 것을 특징으로 하는 에칭 방법.
- 제 7 항에 있어서,상기 Si를 함유하는 유기물막은 C, H를 함유하는 SiO2인 것을 특징으로 하는 에칭 방법.
- 제 7 항에 있어서,상기 Si를 함유하는 유기물막의 유전 상수는 3.0 이하인 것을 특징으로 하는 에칭 방법.
- 제 7 항에 있어서,상기 Si를 함유하는 유기물막은 유기 폴리실록산막인 것을 특징으로 하는 에칭 방법.
- 제 7 항에 있어서,상기 처리 가스는 Ar를 또한 포함하는 것을 특징으로 하는 에칭 방법.
- 제 7 항에 있어서,상기 처리 가스의 상기 C4F8과 상기 N2의 유량비는 실질적으로 10≤(N2 의 유량/C4F8의 유량)인 것을 특징으로 하는 에칭 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30342299A JP4381526B2 (ja) | 1999-10-26 | 1999-10-26 | プラズマエッチング方法 |
JP99-303422 | 1999-10-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010040160A KR20010040160A (ko) | 2001-05-15 |
KR100686761B1 true KR100686761B1 (ko) | 2007-02-23 |
Family
ID=17920834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000062233A KR100686761B1 (ko) | 1999-10-26 | 2000-10-23 | 에칭 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7582220B1 (ko) |
JP (1) | JP4381526B2 (ko) |
KR (1) | KR100686761B1 (ko) |
Families Citing this family (7)
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JP2002270586A (ja) * | 2001-03-08 | 2002-09-20 | Tokyo Electron Ltd | 有機系絶縁膜のエッチング方法およびデュアルダマシンプロセス |
JP2005033027A (ja) * | 2003-07-07 | 2005-02-03 | Ulvac Japan Ltd | 低誘電率層間絶縁膜のドライエッチング方法 |
US7256134B2 (en) | 2003-08-01 | 2007-08-14 | Applied Materials, Inc. | Selective etching of carbon-doped low-k dielectrics |
JP4537818B2 (ja) * | 2004-09-30 | 2010-09-08 | 株式会社日立ハイテクノロジーズ | プラズマ処理方法 |
KR101123094B1 (ko) | 2004-10-13 | 2012-03-15 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 에칭 방법 및 반도체장치의 제조방법 |
US20060118519A1 (en) * | 2004-12-03 | 2006-06-08 | Applied Materials Inc. | Dielectric etch method with high source and low bombardment plasma providing high etch rates |
JP2006196663A (ja) * | 2005-01-13 | 2006-07-27 | Tokyo Electron Ltd | エッチング方法,プログラム,コンピュータ読み取り可能な記録媒体及びプラズマ処理装置 |
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1999
- 1999-10-26 JP JP30342299A patent/JP4381526B2/ja not_active Expired - Fee Related
-
2000
- 2000-10-23 KR KR1020000062233A patent/KR100686761B1/ko not_active IP Right Cessation
- 2000-10-26 US US09/696,232 patent/US7582220B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2001127040A (ja) | 2001-05-11 |
US7582220B1 (en) | 2009-09-01 |
KR20010040160A (ko) | 2001-05-15 |
JP4381526B2 (ja) | 2009-12-09 |
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