KR20060065016A - 포토 레지스트 제거방법 및 이를 이용한 반도체 소자의금속배선 형성방법 - Google Patents
포토 레지스트 제거방법 및 이를 이용한 반도체 소자의금속배선 형성방법 Download PDFInfo
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- KR20060065016A KR20060065016A KR1020040103720A KR20040103720A KR20060065016A KR 20060065016 A KR20060065016 A KR 20060065016A KR 1020040103720 A KR1020040103720 A KR 1020040103720A KR 20040103720 A KR20040103720 A KR 20040103720A KR 20060065016 A KR20060065016 A KR 20060065016A
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- photoresist
- film
- density plasma
- interlayer insulating
- high density
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- 238000000034 method Methods 0.000 title claims abstract description 139
- 229920002120 photoresistant polymer Polymers 0.000 title claims abstract description 85
- 239000004065 semiconductor Substances 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 87
- 239000010410 layer Substances 0.000 claims description 37
- 239000011229 interlayer Substances 0.000 claims description 33
- 239000007789 gas Substances 0.000 claims description 27
- 238000005530 etching Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
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- 239000000758 substrate Substances 0.000 claims description 11
- 238000005468 ion implantation Methods 0.000 claims description 8
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- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 238000001020 plasma etching Methods 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 18
- 230000003647 oxidation Effects 0.000 abstract description 12
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- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 210000002381 plasma Anatomy 0.000 description 23
- 238000004458 analytical method Methods 0.000 description 14
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- 238000009792 diffusion process Methods 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 239000010949 copper Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 8
- 238000009616 inductively coupled plasma Methods 0.000 description 8
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 239000005368 silicate glass Substances 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 230000001186 cumulative effect Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
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- 230000009977 dual effect Effects 0.000 description 5
- 238000004627 transmission electron microscopy Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910019001 CoSi Inorganic materials 0.000 description 2
- 229910004491 TaAlN Inorganic materials 0.000 description 2
- 229910004166 TaN Inorganic materials 0.000 description 2
- 229910004200 TaSiN Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910008482 TiSiN Inorganic materials 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 2
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- 229910003468 tantalcarbide Inorganic materials 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
- HNOUDAHWJWQJME-UHFFFAOYSA-N C.[Si].[O] Chemical compound C.[Si].[O] HNOUDAHWJWQJME-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 241001364096 Pachycephalidae Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- GDFCWFBWQUEQIJ-UHFFFAOYSA-N [B].[P] Chemical compound [B].[P] GDFCWFBWQUEQIJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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Classifications
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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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/427—Stripping or agents therefor using plasma means only
-
- 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
- H01L21/31127—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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (18)
- 포토 레지스트를 마스크로 이용한 공정을 통해 형성된 하지층을 제공하는 단계; 및고밀도 플라즈마 장비를 이용하여 상기 포토 레지스트를 제거하는 단계;를 포함하는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 고밀도 플라즈마 장비는 ICP 장비인 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 고밀도 플라즈마 장비의 챔버 내부는 -20℃ 내지 200℃의 온도로 유지되는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 고밀도 플라즈마 장비는 적어도 5×1013/㎤의 밀도를 갖는 장비인 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 포토 레지스트 제거공정은 1mTorr 내지 1000mTorr의 압력에서 실시되는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 포토 레지스트 제거공정은 200W 내지 3000W의 소오스 파워로 실시되는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 포토 레지스트 제거공정시 바이어스 파워를 조절하여 상기 포토 레지스트의 제거율을 제어하는 포토 레지스트 제거방법.
- 제 7 항에 있어서,상기 바이어스 파워는 1W 내지 1000W인 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 포토 레지스트 제거공정시 O2, N2 및 H2 중 적어도 어느 하나가 포함된 가스를 이용하는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 하지층은 1.5 내지 4.5 대역의 SiO 또는 SiO2 계열에 국부적으로 불소(F), 수소(H), 탄소(C), 메틸(CH3), 실리콘 또는 인(P)이 결합 또는 삽입되어 이루어진 저유전막인 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 고밀도 플라즈마 장비는 전기장 또는 자기장을 이용하여 챔버 내부에 발생된 플라즈마 이온을 한 방향으로 끌어 당겨 상기 포토 레지스트의 제거율을 증가시키는 포토 레지스트 제거방법.
- 제 11 항에 있어서,상기 자기장은 1 내지 200 가우스인 포토 레지스트 제거방법.
- 제 1 항에 있어서, 상기 포토 레지스트 제거단계는,상기 포토 레지스트를 제거하는 단계; 및상기 포토 레지스트가 제거된 기판을 상기 고밀도 플라즈마 장비로 로딩시킨 후 건식방식으로 고밀도 플라즈마 식각공정을 실시하여 상기 포토 레지스트 제거시 상기 하지층에 잔류되는 잔류물을 제거하는 단계;를 포함하는 포토 레지스트 제거방법.
- 제 1 항에 있어서,상기 하지층은 이온주입공정을 통해 불순물 이온이 주입된 층인 포토 레지스트 제거방법.
- 층간 절연막이 형성된 반도체 기판을 제공하는 단계;상기 층간 절연막 상에 포토 레지스트 패턴을 형성하는 단계;상기 포토 레지스트 패턴을 이용한 식각 공정을 실시하여 상기 층간 절연막 내에 배선 패턴을 형성하는 단계;제 1 항 내지 제 13 항 중 어느 하나의 항에 개시된 포토 레지스트 제거공정을 통해 상기 포토 레지스트 패턴을 제거하는 단계; 및상기 배선 패턴이 매립되도록 금속배선을 형성하는 단계;를 포함하는 금속배선 형성방법.
- 제 15 항에 있어서,상기 층간 절연막은 1.5 내지 4.5 대역의 SiO 또는 SiO2 계열에 국부적으로 불소(F), 수소(H), 탄소(C), 메틸(CH3), 실리콘 또는 인(P)이 결합 또는 삽입되어 이루어진 저유전막으로 이루어지거나, 상기 저유전막들 중 서로 다른 저유전막이 적어도 2층 이상 적층된 구조로 형성되는 금속배선 형성방법.
- 제 15 항에 있어서,상기 포토 레지스트 패턴을 형성하기 전에 상기 층간 절연막 상에 캡핑층을 형성하는 단계를 더 포함하는 금속배선 형성방법.
- 제 17 항에 있어서,상기 캡핑층은 SiO2, SiC, SiN(Si3N4), SiOC, SiOC, SiOCH 및 SiON막 중 어느 하나로 이루어진 금속배선 형성방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040103720A KR100603703B1 (ko) | 2004-12-09 | 2004-12-09 | 포토 레지스트 제거방법 및 이를 이용한 반도체 소자의금속배선 형성방법 |
US11/146,538 US7309652B2 (en) | 2004-12-09 | 2005-06-06 | Method for removing photoresist layer and method for forming metal line in semiconductor device using the same |
Applications Claiming Priority (1)
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US7659206B2 (en) * | 2005-01-18 | 2010-02-09 | Applied Materials, Inc. | Removal of silicon oxycarbide from substrates |
US7208325B2 (en) * | 2005-01-18 | 2007-04-24 | Applied Materials, Inc. | Refreshing wafers having low-k dielectric materials |
US8083963B2 (en) | 2007-02-08 | 2011-12-27 | Applied Materials, Inc. | Removal of process residues on the backside of a substrate |
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US7012027B2 (en) * | 2004-01-27 | 2006-03-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Zirconium oxide and hafnium oxide etching using halogen containing chemicals |
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