KR20010033102A - 전이금속함유층 엣칭방법 - Google Patents
전이금속함유층 엣칭방법 Download PDFInfo
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- KR20010033102A KR20010033102A KR1020007006465A KR20007006465A KR20010033102A KR 20010033102 A KR20010033102 A KR 20010033102A KR 1020007006465 A KR1020007006465 A KR 1020007006465A KR 20007006465 A KR20007006465 A KR 20007006465A KR 20010033102 A KR20010033102 A KR 20010033102A
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- Prior art keywords
- transition metal
- plasma processing
- processing chamber
- etching
- containing layer
- Prior art date
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- 238000005530 etching Methods 0.000 title claims abstract description 90
- 229910052723 transition metal Inorganic materials 0.000 title claims abstract description 88
- 150000003624 transition metals Chemical class 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000012545 processing Methods 0.000 claims abstract description 66
- 239000000758 substrate Substances 0.000 claims abstract description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910021381 transition metal chloride Inorganic materials 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 238000009616 inductively coupled plasma Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 description 34
- 229920002120 photoresistant polymer Polymers 0.000 description 33
- 239000007789 gas Substances 0.000 description 21
- 229910052801 chlorine Inorganic materials 0.000 description 18
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 17
- 229910052739 hydrogen Inorganic materials 0.000 description 17
- 239000001257 hydrogen Substances 0.000 description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000001020 plasma etching Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 3
- 229910052732 germanium Inorganic materials 0.000 description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910001510 metal chloride Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 101100107923 Vitis labrusca AMAT gene Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
-
- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
- H01J2237/3343—Problems associated with etching
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Semiconductors (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Description
Claims (23)
- 기질위에 배치되며 엣칭 마스크 아래에 배치된 전이금속함유층을 적어도 부분적으로 엣칭하는 방법에 있어서, 플라즈마 처리 챔버를 갖는 플라즈마 처리 시스템을 제공하고; 상기 플라즈마 처리 챔버가 전이금속함유층을 엣칭하도록 구성하는 단계를 포함하며, 상기 구성단계는 상기 플라즈마 처리 챔버가 HCl 및 Ar 을 포함하는 소스 가스를 받아들이도록 구성하며; 상기 소스가스에서 나오는 플라즈마를 강타하도록 에너지를 공급하기 위해서 상기 플라즈마 처리 챔버와 조합된 전원을 구성하고; 상기 플라즈마는 상기 전이금속함유층을 적어도 부분적으로 엣칭하도록 상기 플라즈마 처리 챔버를 구성하는 단계를 포함함을 특징으로 하는 엣칭 방법.
- 제 1 항에 있어서, 상기 전원이 고주파(RF) 전원이며 상기 에너지가 고주파(RF)에너지임을 특징으로 하는 엣칭 방법.
- 제 1 항에 있어서, 상기 플라즈마 처리 챔버가 고밀도 플라즈마 처리 챔버임을 특징으로 하는 엣칭 방법.
- 제 1 항에 있어서, 상기 소스가스가 HCl 및 Ar 으로 구성됨을 특징으로 하는 엣칭 방법.
- 제 1 항에 있어서, 상기 플라즈마 처리 시스템이 물로 상기 기질을 헹구도록 구성된 헹굼 모듈을 더욱 포함하고 상기 플라즈마 처리 챔버에서 상기 기질이 상기 소스가스로 엣칭된 후 상기 기질을 헹구도록 상기 헹굼 모듈을 구성하는 단계를 더욱 포함하는 엣칭 방법.
- 제 1 항에 있어서, 상기 금속함유층이 주기율표의 ⅢA 족 내지 ⅡB 족 원소에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 1 항에 있어서, 상기 전이금속함유층이 철, 백금, 코발트 또는 니켈에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 7항에 있어서, 상기 플라즈마 처리 챔버가 유도 연결된 고밀도 플라즈마 처리 챔버임을 특징으로 하는 엣칭 방법.
- 제 8 항에 있어서, 상기 Ar 에 대한 상기 HCl 의 유량비율이 1:99 내지 99:1 임을 특징으로 하는 엣칭 방법.
- 플라즈마 처리 챔버에서 기질위에 배치되고 엣칭 마스크 아래에 배치된 전이금속함유층을 엣칭하는 방법에 있어서,HCl 및 Ar 을 포함하는 소스 가스를 플라즈마 처리 챔버에 흐르게 하고;상기 플라즈마 처리 챔버에서 상기 소스가스에서 나오는 플라즈마를 강타하고;상기 전이금속함유층을 상기 플라즈마로 엣칭시키는 단계를 포함하는 엣칭 방법.
- 제 10 항에 있어서, 상기 전이금속함유층이 주기율표의 ⅢA 족 내지 ⅡB 족 원소에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 10 항에 있어서, 상기 전이금속함유층이 철, 백금, 코발트 또는 니켈에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 12 항에 있어서, 상기 플라즈마 처리 챔버가 고밀도 플라즈마 처리 챔버임을 특징으로 하는 엣칭 방법.
- 제 13 항에 있어서, 상기 플라즈마 처리 챔버가 유도 연결된 플라즈마 처리 챔버임을 특징으로 하는 엣칭 방법.
- 제 14 항에 있어서, 상기 소스가스가 Ar 과 HCl 로 구성됨을 특징으로 하는 엣칭 방법.
- 제 15 항에 있어서, 엣칭 후 상기 전이금속 염화물을 제거하기 위해 탈이온수로 상기 기질을 헹구는 단계를 더욱 포함하는 엣칭 방법.
- 제 12 항에 있어서, Ar 에 대한 HCl 의 유량비율이 95:5 내지 5:95 임을 특징으로 하는 엣칭 방법.
- 고밀도 플라즈마 처리 챔버에서 기질위에 배치되고 엣칭 마스크 아래에 배치된 전이금속함유층을 엣칭하는 방법에 있어서,HCl 및 Ar 을 포함하는 소스 가스를 플라즈마 처리 챔버에 흐르게 하고;상기 플라즈마 처리 챔버의 적어도 하나의 전극에 고주파(RF)에너지를 공급하여 상기 플라즈마 처리 챔버에서 상기 소스가스에서 나온 플라즈마를 강타하고;상기 전이금속함유층을 상기 플라즈마로 엣칭시키는 단계를 포함하는 엣칭 방법.
- 제 18 항에 있어서, 상기 전이금속함유층이 주기율표의 ⅢA 족 내지 ⅡB 족 원소에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 18 항에 있어서, 상기 전이금속함유층이 철, 백금, 코발트 또는 니켈에서 선택된 전이금속을 포함함을 특징으로 하는 엣칭 방법.
- 제 20 항에 있어서, 상기 플라즈마 처리 챔버가 유도 연결된 플라즈마 처리 챔버이고 상기 전극이 코일임을 특징으로 하는 엣칭 방법.
- 제 21 항에 있어서, 엣칭 후 상기 전이금속 염화물을 제거하기 위해 탈이온수로 상기 기질을 헹구는 단계를 더욱 포함하는 엣칭 방법.
- 제 21 항에 있어서, Ar 에 대한 HCl 의 유량비율이 90:10 내지 10:90 임을 특징으로 하는 엣칭 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/994,797 | 1997-12-19 | ||
US8/994,797 | 1997-12-19 | ||
US08/994,797 US6069035A (en) | 1997-12-19 | 1997-12-19 | Techniques for etching a transition metal-containing layer |
PCT/US1998/026410 WO1999033086A1 (en) | 1997-12-19 | 1998-12-11 | Techniques for etching a transition metal-containing layer |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010033102A true KR20010033102A (ko) | 2001-04-25 |
KR100595862B1 KR100595862B1 (ko) | 2006-07-03 |
Family
ID=25541061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020007006465A KR100595862B1 (ko) | 1997-12-19 | 1998-12-11 | 전이금속 함유층 에칭방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6069035A (ko) |
JP (1) | JP2001527160A (ko) |
KR (1) | KR100595862B1 (ko) |
WO (1) | WO1999033086A1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6849153B2 (en) * | 1998-04-16 | 2005-02-01 | Siemens Aktiengesellschaft | Removal of post-rie polymer on A1/CU metal line |
US6821907B2 (en) * | 2002-03-06 | 2004-11-23 | Applied Materials Inc | Etching methods for a magnetic memory cell stack |
US6972265B1 (en) * | 2002-04-15 | 2005-12-06 | Silicon Magnetic Systems | Metal etch process selective to metallic insulating materials |
US20050164504A1 (en) * | 2004-01-26 | 2005-07-28 | Mirkarimi Laura W. | Method for etching high aspect ratio features in III-V based compounds for optoelectronic devices |
JP4849881B2 (ja) * | 2005-12-08 | 2012-01-11 | 株式会社日立ハイテクノロジーズ | プラズマエッチング方法 |
JP5694022B2 (ja) | 2011-03-22 | 2015-04-01 | 東京エレクトロン株式会社 | 基板処理方法及び記憶媒体 |
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---|---|---|---|---|
US4838994A (en) * | 1987-06-26 | 1989-06-13 | Siemens Aktiengesellschaft | Method for structuring a copper and/or permalloy layer by means of dry etching |
JPH0814032B2 (ja) * | 1988-06-28 | 1996-02-14 | 日電アネルバ株式会社 | ドライエッチング装置 |
US5145554A (en) * | 1989-02-23 | 1992-09-08 | Seiko Epson Corporation | Method of anisotropic dry etching of thin film semiconductors |
EP0386518B1 (en) * | 1989-02-23 | 1999-06-09 | Seiko Epson Corporation | Etching method for compound semiconductors |
US4923828A (en) * | 1989-07-07 | 1990-05-08 | Eastman Kodak Company | Gaseous cleaning method for silicon devices |
US5318664A (en) * | 1990-06-25 | 1994-06-07 | General Electric Company | Patterning of indium-tin oxide via selective reactive ion etching |
JP2757546B2 (ja) * | 1990-08-27 | 1998-05-25 | 日本電気株式会社 | Feを含む物質のエッチング方法およびエッチング装置 |
US5304775A (en) * | 1991-06-06 | 1994-04-19 | Mitsubishi Denki Kabushiki Kaisha | Method of etching a wafer having high anisotropy with a plasma gas containing halogens and in inert element |
US5300187A (en) * | 1992-09-03 | 1994-04-05 | Motorola, Inc. | Method of removing contaminants |
US5269878A (en) * | 1992-12-10 | 1993-12-14 | Vlsi Technology, Inc. | Metal patterning with dechlorinization in integrated circuit manufacture |
JPH08222549A (ja) * | 1995-02-16 | 1996-08-30 | Sony Corp | プラズマ処理装置およびプラズマ処理方法 |
KR100322695B1 (ko) * | 1995-03-20 | 2002-05-13 | 윤종용 | 강유전성캐패시터의제조방법 |
US5753567A (en) * | 1995-08-28 | 1998-05-19 | Memc Electronic Materials, Inc. | Cleaning of metallic contaminants from the surface of polycrystalline silicon with a halogen gas or plasma |
US5674357A (en) * | 1995-08-30 | 1997-10-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor substrate cleaning process |
DE19631622A1 (de) * | 1996-08-05 | 1998-02-12 | Siemens Ag | Verfahren zum plasmaunterstützten anisotropen Ätzen von Metallen, Metalloxiden und deren Gemische |
-
1997
- 1997-12-19 US US08/994,797 patent/US6069035A/en not_active Expired - Lifetime
-
1998
- 1998-12-11 JP JP2000525905A patent/JP2001527160A/ja active Pending
- 1998-12-11 WO PCT/US1998/026410 patent/WO1999033086A1/en active IP Right Grant
- 1998-12-11 KR KR1020007006465A patent/KR100595862B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1999033086A1 (en) | 1999-07-01 |
KR100595862B1 (ko) | 2006-07-03 |
JP2001527160A (ja) | 2001-12-25 |
US6069035A (en) | 2000-05-30 |
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