JP7148521B2 - 炭化ケイ素を研磨するための組成物及び方法 - Google Patents
炭化ケイ素を研磨するための組成物及び方法 Download PDFInfo
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- JP7148521B2 JP7148521B2 JP2019536830A JP2019536830A JP7148521B2 JP 7148521 B2 JP7148521 B2 JP 7148521B2 JP 2019536830 A JP2019536830 A JP 2019536830A JP 2019536830 A JP2019536830 A JP 2019536830A JP 7148521 B2 JP7148521 B2 JP 7148521B2
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- polishing composition
- substrate
- acid
- silica particles
- polishing
- Prior art date
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Links
- 238000005498 polishing Methods 0.000 title claims description 210
- 239000000203 mixture Substances 0.000 title claims description 152
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims description 73
- 229910010271 silicon carbide Inorganic materials 0.000 title claims description 72
- 238000000034 method Methods 0.000 title claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 133
- 239000000758 substrate Substances 0.000 claims description 69
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 45
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 45
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 44
- 229920000642 polymer Polymers 0.000 claims description 40
- -1 poly(2-acrylamido-2-methyl-1-propanesulfonic acid) Polymers 0.000 claims description 38
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 25
- 239000007800 oxidant agent Substances 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 21
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 claims description 16
- 229940005642 polystyrene sulfonic acid Drugs 0.000 claims description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- 239000006172 buffering agent Substances 0.000 claims description 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 5
- 235000019253 formic acid Nutrition 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 3
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical class C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 150000004885 piperazines Chemical class 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims 6
- 239000010936 titanium Substances 0.000 claims 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 2
- 229920001798 poly[2-(acrylamido)-2-methyl-1-propanesulfonic acid] polymer Polymers 0.000 claims 2
- 229910052719 titanium Inorganic materials 0.000 claims 2
- 229920001577 copolymer Polymers 0.000 description 27
- 239000010410 layer Substances 0.000 description 21
- 239000000463 material Substances 0.000 description 18
- 239000000377 silicon dioxide Substances 0.000 description 15
- 239000003139 biocide Substances 0.000 description 10
- 230000003115 biocidal effect Effects 0.000 description 9
- 239000000872 buffer Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 235000012431 wafers Nutrition 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- 239000003002 pH adjusting agent Substances 0.000 description 6
- SEQKRHFRPICQDD-UHFFFAOYSA-N N-tris(hydroxymethyl)methylglycine Chemical compound OCC(CO)(CO)[NH2+]CC([O-])=O SEQKRHFRPICQDD-UHFFFAOYSA-N 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- QZTKDVCDBIDYMD-UHFFFAOYSA-N 2,2'-[(2-amino-2-oxoethyl)imino]diacetic acid Chemical compound NC(=O)CN(CC(O)=O)CC(O)=O QZTKDVCDBIDYMD-UHFFFAOYSA-N 0.000 description 2
- SXGZJKUKBWWHRA-UHFFFAOYSA-N 2-(N-morpholiniumyl)ethanesulfonate Chemical compound [O-]S(=O)(=O)CC[NH+]1CCOCC1 SXGZJKUKBWWHRA-UHFFFAOYSA-N 0.000 description 2
- AJTVSSFTXWNIRG-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanesulfonic acid Chemical compound OCC[NH+](CCO)CCS([O-])(=O)=O AJTVSSFTXWNIRG-UHFFFAOYSA-N 0.000 description 2
- DVLFYONBTKHTER-UHFFFAOYSA-N 3-(N-morpholino)propanesulfonic acid Chemical compound OS(=O)(=O)CCCN1CCOCC1 DVLFYONBTKHTER-UHFFFAOYSA-N 0.000 description 2
- INEWUCPYEUEQTN-UHFFFAOYSA-N 3-(cyclohexylamino)-2-hydroxy-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(O)CNC1CCCCC1 INEWUCPYEUEQTN-UHFFFAOYSA-N 0.000 description 2
- RZQXOGQSPBYUKH-UHFFFAOYSA-N 3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]azaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound OCC(CO)(CO)NCC(O)CS(O)(=O)=O RZQXOGQSPBYUKH-UHFFFAOYSA-N 0.000 description 2
- XCBLFURAFHFFJF-UHFFFAOYSA-N 3-[bis(2-hydroxyethyl)azaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound OCCN(CCO)CC(O)CS(O)(=O)=O XCBLFURAFHFFJF-UHFFFAOYSA-N 0.000 description 2
- FSVCELGFZIQNCK-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)glycine Chemical compound OCCN(CCO)CC(O)=O FSVCELGFZIQNCK-UHFFFAOYSA-N 0.000 description 2
- DBXNUXBLKRLWFA-UHFFFAOYSA-N N-(2-acetamido)-2-aminoethanesulfonic acid Chemical compound NC(=O)CNCCS(O)(=O)=O DBXNUXBLKRLWFA-UHFFFAOYSA-N 0.000 description 2
- MKWKNSIESPFAQN-UHFFFAOYSA-N N-cyclohexyl-2-aminoethanesulfonic acid Chemical compound OS(=O)(=O)CCNC1CCCCC1 MKWKNSIESPFAQN-UHFFFAOYSA-N 0.000 description 2
- JOCBASBOOFNAJA-UHFFFAOYSA-N N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid Chemical compound OCC(CO)(CO)NCCS(O)(=O)=O JOCBASBOOFNAJA-UHFFFAOYSA-N 0.000 description 2
- VFTZCDVTMZWNBF-UHFFFAOYSA-N N-tris(hydroxymethyl)methyl-4-aminobutanesulfonic acid Chemical compound OCC(CO)(CO)NCCCCS(O)(=O)=O VFTZCDVTMZWNBF-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- OWMVSZAMULFTJU-UHFFFAOYSA-N bis-tris Chemical compound OCCN(CCO)C(CO)(CO)CO OWMVSZAMULFTJU-UHFFFAOYSA-N 0.000 description 2
- HHKZCCWKTZRCCL-UHFFFAOYSA-N bis-tris propane Chemical compound OCC(CO)(CO)NCCCNC(CO)(CO)CO HHKZCCWKTZRCCL-UHFFFAOYSA-N 0.000 description 2
- 239000005380 borophosphosilicate glass Substances 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229960000878 docusate sodium Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019589 hardness Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- IDSXLJLXYMLSJM-UHFFFAOYSA-N morpholine;propane-1-sulfonic acid Chemical compound C1COCCN1.CCCS(O)(=O)=O IDSXLJLXYMLSJM-UHFFFAOYSA-N 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000007991 ACES buffer Substances 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 108700016232 Arg(2)-Sar(4)- dermorphin (1-4) Proteins 0.000 description 1
- 239000007989 BIS-Tris Propane buffer Substances 0.000 description 1
- 239000008000 CHES buffer Substances 0.000 description 1
- PJWWRFATQTVXHA-UHFFFAOYSA-N Cyclohexylaminopropanesulfonic acid Chemical compound OS(=O)(=O)CCCNC1CCCCC1 PJWWRFATQTVXHA-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 239000007993 MOPS buffer Substances 0.000 description 1
- YNLCVAQJIKOXER-UHFFFAOYSA-N N-[tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid Chemical compound OCC(CO)(CO)NCCCS(O)(=O)=O YNLCVAQJIKOXER-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
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- 239000004793 Polystyrene Substances 0.000 description 1
- UZMAPBJVXOGOFT-UHFFFAOYSA-N Syringetin Natural products COC1=C(O)C(OC)=CC(C2=C(C(=O)C3=C(O)C=C(O)C=C3O2)O)=C1 UZMAPBJVXOGOFT-UHFFFAOYSA-N 0.000 description 1
- 239000007997 Tricine buffer Substances 0.000 description 1
- 208000034953 Twin anemia-polycythemia sequence Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000007998 bicine buffer Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- KCFYHBSOLOXZIF-UHFFFAOYSA-N dihydrochrysin Natural products COC1=C(O)C(OC)=CC(C2OC3=CC(O)=CC(O)=C3C(=O)C2)=C1 KCFYHBSOLOXZIF-UHFFFAOYSA-N 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920001778 nylon Polymers 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
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/04—Aqueous dispersions
-
- 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
- C09K3/1409—Abrasive particles per se
-
- 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
- H01L21/31—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
基板の表面を平坦化または研磨するための組成物及び方法は当技術分野でよく知られている。研磨組成物(研磨スラリーとしても知られている)は、典型的には研削材を液体担体中に含有するものであり、研磨組成物を染み込ませた研磨パッドを表面と接触させることによって表面に塗布される。典型的な研削材としては、二酸化ケイ素、酸化セリウム、酸化アルミニウム、酸化ジルコニウム及び酸化スズが挙げられる。研磨組成物は典型的には研磨パッド(例えば、研磨布またはディスク)と一緒に使用される。研削材は、研磨組成物中に懸濁される代わりに、またはそれに加えて、研磨パッド中に組み込まれていることもある。
この実施例は、アルミニウムイオンを含有するシリカ粒子とスルホン酸ポリマーまたはコポリマーとを含む研磨組成物が呈する炭化ケイ素(SiC)と窒化ケイ素(SiN)との除去速度を比較する。
この実施例は、アルミニウムイオンを含有するシリカ粒子と過酸化水素とを含む研磨組成物が呈するSiC、SiN及び酸化ケイ素(SiO)の除去速度に対してポリスチレンスルホン酸(すなわちスルホン酸ポリマー)の量が与える影響を実証する。
この実施例は、アルミニウムイオンを含有するシリカ粒子とスルホン酸ポリマーまたはコポリマーとを含む研磨組成物が呈するSiC、SiN及びSiOの除去速度に対してpHが与える影響を実証する。
この実施例は、スルホン酸ポリマーまたはコポリマーと緩衝剤とをさらに含む研磨組成物が呈するSiC、SiN及びSiOの除去速度に対してシリカ粒子が与える影響を実証する。
Claims (15)
- 基板(但し、窒化チタン(TiN)またはチタン/窒化チタン(Ti/TiN)バリア層を含む基板を除く)を化学機械研磨する方法であって、
(i)基板を提供すること、前記基板は、炭化ケイ素層を前記基板の表面上に含むものである;
(ii)研磨パッドを提供すること;
(iii)
(a)シリカ粒子、
(b)ポリスチレンスルホン酸、ポリ(2-アクリルアミド-2-メチル-1-プロパンスルホン酸)及びポリ(スチレンスルホン酸-コ-マレイン酸)から選択され、そして75,000g/モル~200,000g/モルの平均分子量を有するスルホン酸モノマー単位を含むポリマー及び
(c)水
を含む研磨組成物を提供すること、前記研磨組成物のpHは2~5である;
(iv)前記基板を前記研磨パッド及び前記研磨組成物と接触させること;ならびに
(v)前記研磨パッド及び前記研磨組成物を前記基板に対して相対的に移動させて前記基板の表面上の前記炭化ケイ素層の少なくとも一部を研削して前記基板を研磨すること
を含む、方法。 - 前記シリカ粒子がアルミニウムイオンを含み、前記アルミニウムイオンが前記シリカ粒子中に均質に分布している、請求項1に記載の方法。
- 前記シリカ粒子の平均粒径が40nm~60nmである、請求項1に記載の方法。
- スルホン酸モノマー単位を含む前記ポリマーがポリスチレンスルホン酸である、請求項1に記載の方法。
- 前記研磨組成物がさらに酸化剤を含む、請求項1に記載の方法。
- 前記研磨組成物がさらに緩衝剤を含む、請求項1に記載の方法。
- 前記基板がさらに、窒化ケイ素層を前記基板の表面上に含み、
前記基板の表面上の前記窒化ケイ素層の少なくとも一部を研削して前記基板を研磨する、請求項1に記載の方法。 - 前記基板がさらに、酸化ケイ素層を前記基板の表面上に含み、
前記基板の表面上の前記酸化ケイ素層の少なくとも一部を研削して前記基板を研磨する、請求項1に記載の方法。 - 炭化ケイ素層を基板の表面上に含む基板(但し、窒化チタン(TiN)またはチタン/窒化チタン(Ti/TiN)バリア層を含む基板を除く)のための化学機械研磨組成物であって、
(a)アルミニウムイオンを含有するシリカ粒子、前記アルミニウムイオンは前記シリカ粒子中に均質に分布しており、前記シリカ粒子の平均粒径が40nm~80nmである、
(b)ポリスチレンスルホン酸、ポリ(2-アクリルアミド-2-メチル-1-プロパンスルホン酸)及びポリ(スチレンスルホン酸-コ-マレイン酸)から選択され、そして75,000g/モル~200,000g/モルの平均分子量を有するスルホン酸モノマー単位を含むポリマー、
(c)緩衝剤及び
(d)水
を含み、前記化学機械研磨組成物のpHが2~5である、前記化学機械研磨組成物。 - 前記シリカ粒子の平均粒径が40nm~60nmである、請求項9に記載の化学機械研磨組成物。
- 前記シリカ粒子が実質的に球状である、請求項9に記載の化学機械研磨組成物。
- 前記緩衝剤が、ギ酸、マロン酸、酢酸、シュウ酸、クエン酸及びリン酸から選択される、請求項9に記載の化学機械研磨組成物。
- 前記研磨組成物がさらに酸化剤を含む、請求項9に記載の化学機械研磨組成物。
- 前記酸化剤が過酸化水素である、請求項13に記載の化学機械研磨組成物。
- 前記化学機械研磨組成物が、ピペラジン化合物、4-モルホリン化合物、アミノスルホン酸化合物、置換型アミン化合物、第三級アミン化合物、もしくはビスアミン化合物、またはそれらの塩を含有しない、請求項9に記載の化学機械研磨組成物。
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US15/398,933 US10294399B2 (en) | 2017-01-05 | 2017-01-05 | Composition and method for polishing silicon carbide |
PCT/US2017/067947 WO2018128849A1 (en) | 2017-01-05 | 2017-12-21 | Composition and method for polishing silicon carbide |
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US20180190506A1 (en) | 2018-07-05 |
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TW201829677A (zh) | 2018-08-16 |
US10294399B2 (en) | 2019-05-21 |
WO2018128849A1 (en) | 2018-07-12 |
KR102582406B1 (ko) | 2023-09-22 |
CN110168034B (zh) | 2022-01-25 |
US20190241783A1 (en) | 2019-08-08 |
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