KR100709817B1 - 에칭 방법 - Google Patents
에칭 방법 Download PDFInfo
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- KR100709817B1 KR100709817B1 KR1020027002261A KR20027002261A KR100709817B1 KR 100709817 B1 KR100709817 B1 KR 100709817B1 KR 1020027002261 A KR1020027002261 A KR 1020027002261A KR 20027002261 A KR20027002261 A KR 20027002261A KR 100709817 B1 KR100709817 B1 KR 100709817B1
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- 238000000034 method Methods 0.000 title claims abstract description 96
- 238000005530 etching Methods 0.000 title claims abstract description 94
- 239000007789 gas Substances 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 50
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims description 51
- 239000012044 organic layer Substances 0.000 claims description 24
- 239000011229 interlayer Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AZUYLZMQTIKGSC-UHFFFAOYSA-N 1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-5-methyl-3-(1-methylindazol-5-yl)pyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one Chemical compound ClC=1C(=C2C=NNC2=CC=1C)C=1C(=NN(C=1C)C1CC2(CN(C2)C(C=C)=O)C1)C=1C=C2C=NN(C2=CC=1)C AZUYLZMQTIKGSC-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000012528 membrane Substances 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
- 230000035515 penetration Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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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 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
- H01L21/70—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
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02118—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02118—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC
- H01L21/0212—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC the material being fluoro carbon compounds, e.g.(CFx) n, (CHxFy) n or polytetrafluoroethylene
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Plasma & Fusion (AREA)
- Drying Of Semiconductors (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Description
실시예 | 처리 가스 유량 (SCCM) | 처리실 내부 압력 분위기 (mTorr) | 에칭 속도 (A/분) | 트렌칭(%) | 콘택트 홀의 단면 형상 | ||||
N2 | H2 | Ar | 센터 | 엣지 | 센터 | 엣지 | |||
1a | 400 | 400 | 0 | 100 | 3958 | 4000 | 117 | 120 | 도 2a |
1b | 400 | 400 | 0 | 500 | 3792 | 3354 | 100 | 112 | 도 2b |
1c | 400 | 400 | 500 | 800 | 4043 | 3532 | 87 | 104 | 도 2c |
실시예 | 처리 가스 유량 (SCCM) | 처리실 내부 압력 분위기 (mTorr) | 에칭 속도 (A/분) | 트렌칭(%) | 콘택트 홀의 단면 형상 | ||||
N2 | H2 | Ar | 센터 | 엣지 | 센터 | 엣지 | |||
2a | 400 | 400 | 0 | 100 | 3063 | 3146 | 157 | 153 | 도 3a |
2b | 400 | 400 | 0 | 500 | 3521 | 3146 | 114 | 126 | 도 3b |
2c | 400 | 400 | 500 | 800 | 3638 | 3426 | 89 | 106 | 도 3c |
실시예 | 처리 가스 유량(SCCM) | 에칭 폭 (㎛) | 처리실 내부 압력 분위기 (mTorr) | 에칭 깊이 (최천부/최심부.A) | 콘택트 홀의 단면 형상 | |||
N2 | H2 | 센터 | 미들 | 엣지 | ||||
3a | 200 | 200 | 0.35 | 500 | 4500/5125 | 4750/5250 | 5250/5750 | 도 5a |
3b | 200 | 200 | 0.30 | 500 | 4875/5250 | 5000/5375 | 5000/5500 | 도 5b |
3c | 100 | 300 | 0.35 | 500 | 5000/5625 | 4875/5500 | 5000/5625 | 도 5c |
3d | 100 | 300 | 0.30 | 500 | 4750/5250 | 5000/5625 | 5125/5500 | 도 5d |
Claims (20)
- 피처리체 상의 에칭 마스크를 갖는 유기층막을 에칭하는 방법으로서,피처리체를 기밀 처리실에 배치하는 단계;처리 기체를 상기 처리실에 도입하는 단계;상기 처리실을 500 mTorr 이상의 압력으로 가압하는 단계;상기 유기층막을 에칭하여 실질적으로 마이크로 트렌칭을 방지하면서 실질적으로 평탄한 바닥면을 갖는 홈을 형성하는 단계;상기 홈이 상기 유기층막을 관통하기 전에 에칭을 정지시키는 단계; 및에칭 공정을 종결하는 단계를 포함하는 방법.
- 제 1 항에 있어서,상기 처리 기체가 질소 원자 함유 기체 및 수소 원자 함유 기체를 포함하는 방법.
- 피처리체 상의 에칭 마스크를 갖는 유기층막을 에칭하는 방법으로서,피처리체를 기밀 처리실에 배치하는 단계;질소 원자 함유 기체 및 수소 원자 함유 기체를 포함하는 처리 기체를 상기 처리실에 도입하는 단계;상기 처리실을 500 내지 800 mTorr의 압력으로 가압하는 단계;상기 유기층막을 에칭하여 바닥면에서 실질적으로 마이크로 트렌칭을 방지하면서 실질적으로 평탄한 바닥면을 갖는 홈을 형성하는 단계;상기 홈이 상기 유기층막을 관통하기 전에 에칭을 정지시키는 단계; 및에칭 공정을 종결하는 단계를 포함하는 방법.
- 제 3 항에 있어서,상기 질소 원자 함유 기체가 N2로 구성되고 수소 원자 함유 기체가 H2로 구성되는 방법.
- 제 3 항에 있어서,상기 처리 기체가 Ar을 추가로 포함하는 방법.
- 제 4 항에 있어서,상기 처리 기체가 Ar을 추가로 포함하는 방법.
- 제 1 항에 있어서,상기 방법이 다마신(damascene) 공정에서 배선 패턴을 형성하기 위하여 사용되는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 유기층막을 에칭하는 단계가 배선 홈을 위해 유기층막의 대략 관통 도중까지 유기층막을 에칭하는 것인 듀얼 다마신 공정에 적용되는 방법.
- 제 1 항에 있어서,상기 유기층막을 에칭하는 단계가 상기 유기층막을 유기층막의 대략 관통 도중까지 에칭하는 것인 방법.
- 제 3 항에 있어서,상기 방법이 다마신 공정에서 배선 패턴을 형성하기 위하여 사용되는 것을 특징으로 하는 방법.
- 제 3 항에 있어서,상기 유기층막을 에칭하는 단계가 배선 홈을 위해 상기 유기층막을 유기층막의 대략 관통 도중까지 에칭하는 것인 듀얼 다마신 공정에 적용되는 방법.
- 제 3 항에 있어서,상기 유기층막을 에칭하는 단계가 상기 유기층막을 유기층막의 대략 관통 도중까지 에칭하는 것인 방법.
- 제 1 항에 있어서,상기 홈이 상기 유기층막을 관통하기 전 에칭의 정지 단계 동안 또는 이후에 상기 홈의 실질적으로 평탄한 바닥면이 형성되는 방법.
- 제 1 항에 있어서,상기 홈이 상기 유기층막에 형성되는 방법.
- 제 3 항에 있어서,상기 홈이 상기 유기층막을 관통하기 전 에칭의 정지 단계 동안 또는 이후에 상기 홈의 실질적으로 평탄한 바닥면이 형성되는 방법.
- 제 3 항에 있어서,상기 홈이 상기 유기층막에 형성되는 방법.
- 제 1 항에 있어서,상기 홈이 콘택트 홀(contact hole)을 포함하는 방법.
- 제 3 항에 있어서,상기 홈이 콘택트 홀을 포함하는 방법.
- 제 1 항에 있어서,상기 에칭 공정의 종결 단계가 에칭 공정을 재시작하지 않고 에칭 공정을 종결하는 것을 포함하는 방법.
- 제 3 항에 있어서,상기 에칭 공정의 종결 단계가 에칭 공정을 재시작하지 않고 에칭 공정을 종결하는 것을 포함하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-1999-00235191 | 1999-08-23 | ||
JP23519199A JP3844413B2 (ja) | 1999-08-23 | 1999-08-23 | エッチング方法 |
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Publication Number | Publication Date |
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KR20020027567A KR20020027567A (ko) | 2002-04-13 |
KR100709817B1 true KR100709817B1 (ko) | 2007-04-23 |
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KR1020027002261A KR100709817B1 (ko) | 1999-08-23 | 2000-08-23 | 에칭 방법 |
Country Status (5)
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EP (1) | EP1225621B1 (ko) |
JP (1) | JP3844413B2 (ko) |
KR (1) | KR100709817B1 (ko) |
TW (1) | TW469488B (ko) |
WO (1) | WO2001015213A1 (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3739325B2 (ja) * | 2001-09-20 | 2006-01-25 | 株式会社日立製作所 | 有機絶縁膜のエッチング方法 |
JP2004214336A (ja) | 2002-12-27 | 2004-07-29 | Tokyo Electron Ltd | プラズマエッチング方法およびプラズマエッチング装置 |
JP2004342873A (ja) | 2003-05-16 | 2004-12-02 | Tokyo Electron Ltd | 半導体装置およびその製造方法 |
US7344993B2 (en) * | 2005-01-11 | 2008-03-18 | Tokyo Electron Limited, Inc. | Low-pressure removal of photoresist and etch residue |
CN101866846B (zh) * | 2009-04-14 | 2012-04-18 | 中芯国际集成电路制造(北京)有限公司 | 刻蚀沟槽的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529860A (en) | 1982-08-02 | 1985-07-16 | Motorola, Inc. | Plasma etching of organic materials |
JPS60170238A (ja) * | 1984-02-15 | 1985-09-03 | Toyota Central Res & Dev Lab Inc | ドライエツチング方法 |
JPH10150101A (ja) * | 1996-11-15 | 1998-06-02 | Nippon Steel Corp | 半導体装置及びその製造方法 |
JPH11150101A (ja) * | 1997-11-18 | 1999-06-02 | Nec Corp | 半導体装置の製造方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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JPH10209118A (ja) * | 1997-01-28 | 1998-08-07 | Sony Corp | アッシング方法 |
WO1999026277A1 (en) * | 1997-11-17 | 1999-05-27 | Mattson Technology, Inc. | Systems and methods for plasma enhanced processing of semiconductor wafers |
US6080680A (en) * | 1997-12-19 | 2000-06-27 | Lam Research Corporation | Method and composition for dry etching in semiconductor fabrication |
JP2000036484A (ja) * | 1998-05-11 | 2000-02-02 | Tokyo Electron Ltd | プラズマ処理方法 |
FR2789804B1 (fr) * | 1999-02-17 | 2002-08-23 | France Telecom | Procede de gravure anisotrope par plasma gazeux d'un materiau polymere dielectrique organique et application a la microelectronique |
JP4207303B2 (ja) * | 1999-04-07 | 2009-01-14 | ソニー株式会社 | 半導体装置およびその製造方法 |
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1999
- 1999-08-23 JP JP23519199A patent/JP3844413B2/ja not_active Expired - Fee Related
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2000
- 2000-08-22 TW TW089116981A patent/TW469488B/zh active
- 2000-08-23 WO PCT/JP2000/005623 patent/WO2001015213A1/ja active IP Right Grant
- 2000-08-23 EP EP00954910A patent/EP1225621B1/en not_active Expired - Lifetime
- 2000-08-23 KR KR1020027002261A patent/KR100709817B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529860A (en) | 1982-08-02 | 1985-07-16 | Motorola, Inc. | Plasma etching of organic materials |
JPS60170238A (ja) * | 1984-02-15 | 1985-09-03 | Toyota Central Res & Dev Lab Inc | ドライエツチング方法 |
JPH10150101A (ja) * | 1996-11-15 | 1998-06-02 | Nippon Steel Corp | 半導体装置及びその製造方法 |
JPH11150101A (ja) * | 1997-11-18 | 1999-06-02 | Nec Corp | 半導体装置の製造方法 |
Also Published As
Publication number | Publication date |
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JP3844413B2 (ja) | 2006-11-15 |
EP1225621B1 (en) | 2011-07-13 |
EP1225621A1 (en) | 2002-07-24 |
WO2001015213A1 (fr) | 2001-03-01 |
KR20020027567A (ko) | 2002-04-13 |
TW469488B (en) | 2001-12-21 |
EP1225621A4 (en) | 2007-03-28 |
JP2001060582A (ja) | 2001-03-06 |
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