KR100869044B1 - 구리 및 텅스텐을 포함하는 반도체 장치 도전성 구조체들의폴리싱에 있어서 고정 연마제 폴리싱 패드들과 함께사용하기 위한 슬러리 및 폴리싱 방법들 - Google Patents
구리 및 텅스텐을 포함하는 반도체 장치 도전성 구조체들의폴리싱에 있어서 고정 연마제 폴리싱 패드들과 함께사용하기 위한 슬러리 및 폴리싱 방법들 Download PDFInfo
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- KR100869044B1 KR100869044B1 KR1020077009084A KR20077009084A KR100869044B1 KR 100869044 B1 KR100869044 B1 KR 100869044B1 KR 1020077009084 A KR1020077009084 A KR 1020077009084A KR 20077009084 A KR20077009084 A KR 20077009084A KR 100869044 B1 KR100869044 B1 KR 100869044B1
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- Prior art keywords
- slurry
- polishing
- copper
- tungsten
- semiconductor device
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- 239000002002 slurry Substances 0.000 title claims abstract description 127
- 238000005498 polishing Methods 0.000 title claims abstract description 112
- 239000010949 copper Substances 0.000 title claims abstract description 110
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 107
- 239000004065 semiconductor Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 51
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 39
- 239000010937 tungsten Substances 0.000 title claims abstract description 39
- 230000004888 barrier function Effects 0.000 claims abstract description 59
- 230000003647 oxidation Effects 0.000 claims abstract description 27
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 27
- 238000007517 polishing process Methods 0.000 claims abstract description 5
- 239000007800 oxidant agent Substances 0.000 claims description 17
- 239000008139 complexing agent Substances 0.000 claims description 15
- 239000003112 inhibitor Substances 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 13
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 5
- 239000005695 Ammonium acetate Substances 0.000 claims description 5
- 235000019257 ammonium acetate Nutrition 0.000 claims description 5
- 229940043376 ammonium acetate Drugs 0.000 claims description 5
- 239000004471 Glycine Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 49
- 239000000758 substrate Substances 0.000 description 18
- 229910052715 tantalum Inorganic materials 0.000 description 11
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 7
- 239000003082 abrasive agent Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- -1 amine compounds Chemical class 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 4
- 239000004254 Ammonium phosphate Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 3
- 235000019289 ammonium phosphates Nutrition 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 235000012431 wafers Nutrition 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical group N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000003868 ammonium compounds Chemical class 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 239000005380 borophosphosilicate glass Substances 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- CIYRLONPFMPRLH-UHFFFAOYSA-N copper tantalum Chemical compound [Cu].[Ta] CIYRLONPFMPRLH-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000005360 phosphosilicate glass Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 2
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-O azanium;hydron;hydroxide Chemical compound [NH4+].O VHUUQVKOLVNVRT-UHFFFAOYSA-O 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910021360 copper silicide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- YXVFQADLFFNVDS-UHFFFAOYSA-N diammonium citrate Chemical compound [NH4+].[NH4+].[O-]C(=O)CC(O)(C(=O)O)CC([O-])=O YXVFQADLFFNVDS-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- IWZKICVEHNUQTL-UHFFFAOYSA-M potassium hydrogen phthalate Chemical compound [K+].OC(=O)C1=CC=CC=C1C([O-])=O IWZKICVEHNUQTL-UHFFFAOYSA-M 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VKFFEYLSKIYTSJ-UHFFFAOYSA-N tetraazanium;phosphonato phosphate Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[O-]P([O-])(=O)OP([O-])([O-])=O VKFFEYLSKIYTSJ-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/005—Control means for lapping machines or devices
- B24B37/0056—Control means for lapping machines or devices taking regard of the pH-value of lapping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
-
- 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
- H01L21/32115—Planarisation
- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims (25)
- 화학-기계적 폴리싱 공정들에 사용하기 위한 슬러리에 있어서:칼륨 요오드산염을 포함하는 산화제;벤젠트리아졸을 포함하는 억제제; 및착화제를 포함하고,상기 슬러리에서의 텅스텐의 산화 에너지가 상기 슬러리에서의 구리의 산화 에너지의 0.20V 이상 내지 상기 슬러리에서의 구리의 산화 에너지의 0.25V 이하의 포함 범위 내에 있는, 슬러리.
- 제 1 항에 있어서,3% 내지 5% 중량의 상기 칼륨 요오드산염을 포함하는, 슬러리.
- 제 1 항에 있어서,0.1% 중량의 상기 벤젠트리아졸을 포함하는, 슬러리.
- 제 2 항에 있어서,0.1% 중량의 상기 벤젠트리아졸을 포함하는, 슬러리.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 착화제는 글리신을 포함하는, 슬러리.
- 제 5 항에 있어서,1% 중량의 상기 글리신을 포함하는, 슬러리.
- 제 5 항에 있어서,상기 착화제는 폴리에틸렌 글리콜을 더 포함하는, 슬러리.
- 제 7 항에 있어서,0.1M 폴리에틸렌 글리콜을 포함하는, 슬러리.
- 제 6 항에 있어서,상기 착화제는 폴리에틸렌 글리콜을 더 포함하는, 슬러리
- 제 9 항에 있어서,0.1M의 상기 폴리에틸렌 글리콜을 포함하는, 슬러리.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 착화제는 암모늄 아세테이트를 포함하는, 슬러리.
- 제 11 항에 있어서,3% 중량의 암모늄 아세테이트를 포함하는, 슬러리.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,2 내지 6pH를 갖는, 슬러리.
- 제 13 항에 있어서,3 내지 5pH를 갖는, 슬러리.
- 제 14 항에 있어서,4pH를 갖는, 슬러리.
- 삭제
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,실내 온도에서 10센티푸아즈 내지 20센티푸아즈의 점도를 갖는, 슬러리.
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 산화제, 상기 억제제 및 상기 착화제를 포함하는 화학 폴리싱 구성요소들로 이루어지는, 슬러리.
- 폴리싱 시스템에 있어서:고정 연마제 폴리싱 패드; 및제 18 항에 따른 슬러리를 포함하는, 폴리싱 시스템.
- 제 19 항에 있어서,상기 고정 연마제 폴리싱 패드는 알루미나(Al2O3), 이산화 티타늄(TiO2), 이산화 실리콘(SiO2), 및 이산화 세륨(CeO2) 중 적어도 하나를 포함하는 미립자 연마제를 포함하는, 폴리싱 시스템.
- 삭제
- 반도체 디바이스 구조의 표면을 폴리싱하는 방법으로서, 상기 표면은 구리를 포함하는 도전성 구조체와, 상기 도전성 구조체에 인접한 텅스텐 배리어층을 포함하는, 상기 폴리싱 방법에 있어서:상기 도전성 구조체의 구리가 폴리싱되는 속도와 동일한 속도 또는 상기 도전성 구조체의 구리가 폴리싱되는 속도보다 더 느린 속도로 상기 배리어층의 텅스텐을 폴리싱하기 위해, 제 1 항 내지 제 4 항 중 어느 한 항에 따른 슬러리 및 폴리싱 패드의 사용을 포함하는, 폴리싱 방법.
- 제 22 항에 있어서,상기 산화제, 상기 억제제 및 상기 착화제를 포함하는 화학 폴리싱 구성요소로 이루어지는 슬러리 및 고정 연마제 폴리싱 패드의 사용을 포함하는, 폴리싱 방법.
- 제 22 항에 있어서,상기 슬러리는 4pH를 갖는, 폴리싱 방법.
- 제 22 항에 있어서,상기 슬러리에서의 텅스텐의 산화 에너지는 상기 슬러리에서의 구리의 산화 에너지의 0.20V 이상 내지 상기 슬러리에서의 구리의 산화 에너지의 0.25V 이하의 포함 범위 내에 있는, 폴리싱 방법.
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US09/651,808 US6602117B1 (en) | 2000-08-30 | 2000-08-30 | Slurry for use with fixed-abrasive polishing pads in polishing semiconductor device conductive structures that include copper and tungsten and polishing methods |
US09/651,808 | 2000-08-30 |
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KR1020037003070A KR100854258B1 (ko) | 2000-08-30 | 2001-08-30 | 구리 및 텅스텐을 포함하는 반도체 장치 도전성 구조체들의 폴리싱에 있어서 고정 연마제 폴리싱 패드들과 함께 사용하기 위한 슬러리 및 폴리싱 방법들 |
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US20050153556A1 (en) | 2005-07-14 |
EP1314194A2 (en) | 2003-05-28 |
WO2002018099A2 (en) | 2002-03-07 |
US20020123299A1 (en) | 2002-09-05 |
WO2002018099A3 (en) | 2002-10-31 |
CN1468446A (zh) | 2004-01-14 |
CN1291462C (zh) | 2006-12-20 |
KR20070049690A (ko) | 2007-05-11 |
US20040014318A1 (en) | 2004-01-22 |
US6830500B2 (en) | 2004-12-14 |
AU2001288591A1 (en) | 2002-03-13 |
US6602117B1 (en) | 2003-08-05 |
JP2004507899A (ja) | 2004-03-11 |
KR20030036740A (ko) | 2003-05-09 |
KR100854258B1 (ko) | 2008-08-26 |
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