KR20040019936A - 금속의 기계적 폴리싱 (cmp)을 위한 슬러리 및 이의 용도 - Google Patents
금속의 기계적 폴리싱 (cmp)을 위한 슬러리 및 이의 용도 Download PDFInfo
- Publication number
- KR20040019936A KR20040019936A KR1020030059250A KR20030059250A KR20040019936A KR 20040019936 A KR20040019936 A KR 20040019936A KR 1020030059250 A KR1020030059250 A KR 1020030059250A KR 20030059250 A KR20030059250 A KR 20030059250A KR 20040019936 A KR20040019936 A KR 20040019936A
- Authority
- KR
- South Korea
- Prior art keywords
- slurry composition
- sulfate
- ion source
- polishing
- copper
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 65
- 239000002002 slurry Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title description 11
- 239000002184 metal Substances 0.000 title description 11
- 150000002739 metals Chemical class 0.000 title description 4
- 239000000203 mixture Substances 0.000 claims abstract description 54
- 239000010949 copper Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 34
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 20
- 239000004094 surface-active agent Substances 0.000 claims abstract description 20
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000007800 oxidant agent Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010937 tungsten Substances 0.000 claims abstract description 4
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- 230000001590 oxidative effect Effects 0.000 claims description 13
- 239000003112 inhibitor Substances 0.000 claims description 10
- -1 sodium alkyl sulfates Chemical class 0.000 claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- 239000003870 refractory metal Substances 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 claims description 3
- 229940067741 sodium octyl sulfate Drugs 0.000 claims description 3
- WFRKJMRGXGWHBM-UHFFFAOYSA-M sodium;octyl sulfate Chemical compound [Na+].CCCCCCCCOS([O-])(=O)=O WFRKJMRGXGWHBM-UHFFFAOYSA-M 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 150000003852 triazoles Chemical class 0.000 claims description 3
- DKZRLCHWDNEKRH-UHFFFAOYSA-N 1-nonoxynonane Chemical class CCCCCCCCCOCCCCCCCCC DKZRLCHWDNEKRH-UHFFFAOYSA-N 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical group [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims 1
- 125000002883 imidazolyl group Chemical group 0.000 claims 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims 1
- GRNNMEITWDFPOL-UHFFFAOYSA-M sodium;heptyl sulfate Chemical compound [Na+].CCCCCCCOS([O-])(=O)=O GRNNMEITWDFPOL-UHFFFAOYSA-M 0.000 claims 1
- WSVLUYNDHYCZGD-UHFFFAOYSA-M sodium;hexyl sulfate Chemical compound [Na+].CCCCCCOS([O-])(=O)=O WSVLUYNDHYCZGD-UHFFFAOYSA-M 0.000 claims 1
- FTWCSAMTIKSPAT-UHFFFAOYSA-M sodium;nonyl sulfate Chemical compound [Na+].CCCCCCCCCOS([O-])(=O)=O FTWCSAMTIKSPAT-UHFFFAOYSA-M 0.000 claims 1
- 238000007517 polishing process Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 235000012431 wafers Nutrition 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 229940067739 octyl sulfate Drugs 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 235000015847 Hesperis matronalis Nutrition 0.000 description 4
- 240000004533 Hesperis matronalis Species 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- UZZYXUGECOQHPU-UHFFFAOYSA-N sulfuric acid monooctyl ester Natural products CCCCCCCCOS(O)(=O)=O UZZYXUGECOQHPU-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- UZZYXUGECOQHPU-UHFFFAOYSA-M n-octyl sulfate Chemical compound CCCCCCCCOS([O-])(=O)=O UZZYXUGECOQHPU-UHFFFAOYSA-M 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 230000002301 combined effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 238000013313 FeNO test Methods 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- HKVFISRIUUGTIB-UHFFFAOYSA-O azanium;cerium;nitrate Chemical compound [NH4+].[Ce].[O-][N+]([O-])=O HKVFISRIUUGTIB-UHFFFAOYSA-O 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- 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
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
-
- 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
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- 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]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims (25)
- 연마제 입자, 산화제, 계면활성제, 클로라이드 이온 공급원 및 설페이트 이온 공급원을 포함하는 슬러리 조성물.
- 제 1 항에 있어서,연마제 입자 약 0.5 내지 약 6중량%, 산화제 약 1 내지 50g/ℓ, 계면활성제 약 0.1 내지 약 100㎖/ℓ, 클로라이드 이온 공급원 약 0.001 내지 약 20g/ℓ 및 설페이트 이온 공급원 약 0.001 내지 약 20g/ℓ를 포함하는 슬러리 조성물.
- 제 1 항에 있어서,부식 억제제를 추가로 함유하는 슬러리 조성물.
- 제 3 항에 있어서,부식 억제제의 양이 약 0.1 내지 약 5g/ℓ인 슬러리 조성물.
- 제 4 항에 있어서,부식 억제제가 이미다졸, 트리아졸 및 치환된 트리아졸로 이루어진 군으로부터 선택된 슬러리 조성물.
- 제 4 항에 있어서,부식 억제제가 벤조트리아졸을 포함하는 슬러리 조성물.
- 제 1 항에 있어서,클로라이드 이온 공급원이 염화나트륨을 포함하는 슬러리 조성물.
- 제 1 항에 있어서,클로라이드 이온 공급원의 양이 약 0.001 내지 약 5g/ℓ인 슬러리 조성물.
- 제 1 항에 있어서,클로라이드 이온 공급원의 양이 약 0.05 내지 약 0.1g/ℓ인 슬러리 조성물.
- 제 1 항에 있어서,설페이트 이온 공급원의 양이 약 1 내지 약 3g/ℓ인 슬러리 조성물.
- 제 1 항에 있어서,설페이트 이온 공급원이 황산나트륨을 포함하는 슬러리 조성물.
- 제 1 항에 있어서,산화제가 철(II) 니트레이트를 포함하는 슬러리 조성물.
- 제 1 항에 있어서,연마제 입자가 알루미나를 포함하는 슬러리 조성물.
- 제 1 항에 있어서,계면활성제가 설페이트를 포함하는 슬러리 조성물.
- 제 14 항에 있어서,설페이트가 나트륨 헥실 설페이트, 나트륨 헵틸 설페이트, 나트륨 옥틸 설페이트, 나트륨 노닐 설페이트, 나트륨 라우릴 설페이트 및 이의 혼합물로 이루어진 군으로부터 선택된 슬러리 조성물.
- 제 1 항에 있어서,계면활성제가 나트륨 알킬 설페이트, 알킬 설포네이트, 4차 암모늄 염, 노닐 에테르 및 이의 혼합물로 이루어진 군으로부터 선택된 슬러리 조성물.
- 제 1 항에 있어서,계면활성제가 나트륨 옥틸 설페이트를 포함하는 슬러리 조성물.
- 연마제 입자, 산화제, 계면활성제, 클로라이드 이온 공급원 및 설페이트 이온 공급원을 포함하는 슬러리 조성물을 표면 상에 제공하는 단계; 및 상기 표면을 폴리싱 패드와 접촉시켜 폴리싱하는 단계를 포함하는 표면 폴리싱 방법.
- 제 18 항에 있어서,표면이 구리, 알루미늄, 텅스텐 및 이들의 합금으로 이루어진 군으로부터 선택되는 방법.
- 제 19 항에 있어서,폴리싱할 표면이 구리 또는 구리 합금이고, 슬러리 조성물이 구리 부식 억제제를 추가로 포함하는 방법.
- 제 20 항에 있어서,구리 또는 구리 합금 아래에 내화성 금속 라이너가 존재하는 방법.
- 제 21 항에 있어서,내화성 금속 라이너가 니오븀, 탄탈륨, 티탄, 이들의 질화물, 및 이들의 혼합물로 이루어진 군으로부터 선택된 방법.
- 제 18 항에 있어서,약 1 내지 약 9psi의 다운포스(downforce)를 사용하여 폴리싱을 실시하는 방법.
- 제 23 항에 있어서,다운포스가 약 2 내지 약 6psi인 방법.
- 제 20 항에 있어서,폴리싱 도중 폴리싱 패드의 속도가 약 10 내지 약 90rpm이고, 폴리싱 도중 웨이퍼 캐리어의 속도가 약 10 내지 약 70rpm인 방법.
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US10/231,047 | 2002-08-30 | ||
US10/231,047 US6812193B2 (en) | 2001-08-31 | 2002-08-30 | Slurry for mechanical polishing (CMP) of metals and use thereof |
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CN1854236B (zh) * | 2005-04-21 | 2011-08-03 | 安集微电子(上海)有限公司 | 抛光浆料及其用途 |
CN1865386B (zh) * | 2005-05-17 | 2012-05-16 | 安集微电子(上海)有限公司 | 抛光浆料 |
US8591763B2 (en) * | 2006-03-23 | 2013-11-26 | Cabot Microelectronics Corporation | Halide anions for metal removal rate control |
CN101684392B (zh) * | 2008-09-26 | 2015-01-28 | 安集微电子(上海)有限公司 | 一种化学机械抛光液 |
CN101724347A (zh) * | 2008-10-10 | 2010-06-09 | 安集微电子(上海)有限公司 | 一种化学机械抛光液 |
CN102079063B (zh) * | 2009-12-01 | 2013-09-18 | 中芯国际集成电路制造(上海)有限公司 | 化学机械研磨方法 |
CN116042098A (zh) * | 2023-02-08 | 2023-05-02 | 广东粤港澳大湾区黄埔材料研究院 | 一种纳米氧化铝抛光液及在红外硫系玻璃抛光中的应用 |
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TWI306895B (en) | 2009-03-01 |
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