JP2010177703A - 両親媒性非イオン性界面活性剤を利用したcmp法 - Google Patents
両親媒性非イオン性界面活性剤を利用したcmp法 Download PDFInfo
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- JP2010177703A JP2010177703A JP2010094057A JP2010094057A JP2010177703A JP 2010177703 A JP2010177703 A JP 2010177703A JP 2010094057 A JP2010094057 A JP 2010094057A JP 2010094057 A JP2010094057 A JP 2010094057A JP 2010177703 A JP2010177703 A JP 2010177703A
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- Prior art keywords
- alkyl
- polyoxyethylene
- metal layer
- nonionic surfactant
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 75
- 239000002736 nonionic surfactant Substances 0.000 title claims abstract description 71
- 238000005498 polishing Methods 0.000 claims abstract description 157
- 239000010949 copper Substances 0.000 claims abstract description 96
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910052802 copper Inorganic materials 0.000 claims abstract description 89
- 239000000758 substrate Substances 0.000 claims abstract description 86
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000001590 oxidative effect Effects 0.000 claims abstract description 22
- 150000007524 organic acids Chemical class 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 239000003112 inhibitor Substances 0.000 claims abstract description 17
- -1 polyoxyethylene Polymers 0.000 claims description 97
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 79
- 239000000203 mixture Substances 0.000 claims description 64
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 44
- 125000000217 alkyl group Chemical group 0.000 claims description 42
- 239000000377 silicon dioxide Substances 0.000 claims description 37
- 239000000126 substance Substances 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 29
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 28
- 229920006395 saturated elastomer Polymers 0.000 claims description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 14
- 150000002148 esters Chemical class 0.000 claims description 14
- 239000007800 oxidant agent Substances 0.000 claims description 14
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 14
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000011164 primary particle Substances 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 239000012964 benzotriazole Substances 0.000 claims description 10
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 10
- 125000005037 alkyl phenyl group Chemical group 0.000 claims description 9
- 229910052715 tantalum Inorganic materials 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 8
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 7
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 7
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 6
- 235000011054 acetic acid Nutrition 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims description 6
- 239000004310 lactic acid Substances 0.000 claims description 6
- 235000014655 lactic acid Nutrition 0.000 claims description 6
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 5
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- 229920000578 graft copolymer Polymers 0.000 claims description 4
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 229920000867 polyelectrolyte Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 235000019260 propionic acid Nutrition 0.000 claims description 4
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- QWENRTYMTSOGBR-UHFFFAOYSA-N 1H-1,2,3-Triazole Chemical compound C=1C=NNN=1 QWENRTYMTSOGBR-UHFFFAOYSA-N 0.000 claims description 3
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- LRUDIIUSNGCQKF-UHFFFAOYSA-N 5-methyl-1H-benzotriazole Chemical compound C1=C(C)C=CC2=NNN=C21 LRUDIIUSNGCQKF-UHFFFAOYSA-N 0.000 claims 2
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims 2
- 238000007517 polishing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 83
- 239000004094 surface-active agent Substances 0.000 description 46
- 230000003628 erosive effect Effects 0.000 description 20
- 235000012239 silicon dioxide Nutrition 0.000 description 19
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 14
- 239000002002 slurry Substances 0.000 description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 9
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000003082 abrasive agent Substances 0.000 description 7
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 7
- 229940005642 polystyrene sulfonic acid Drugs 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002738 chelating agent Substances 0.000 description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 239000002518 antifoaming agent Substances 0.000 description 5
- 239000003139 biocide Substances 0.000 description 5
- 239000008139 complexing agent Substances 0.000 description 5
- 229910000431 copper oxide Inorganic materials 0.000 description 5
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910001936 tantalum oxide Inorganic materials 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000003945 anionic surfactant Substances 0.000 description 4
- 230000003115 biocidal effect Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- LLYCMZGLHLKPPU-UHFFFAOYSA-M perbromate Chemical compound [O-]Br(=O)(=O)=O LLYCMZGLHLKPPU-UHFFFAOYSA-M 0.000 description 4
- 229920001281 polyalkylene Polymers 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 235000015165 citric acid Nutrition 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- SUHUKEQAOUOUJO-UHFFFAOYSA-N ethane-1,2-diol;2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical compound OCCO.CC(C)CC(C)(O)C#CC(C)(O)CC(C)C SUHUKEQAOUOUJO-UHFFFAOYSA-N 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000004377 microelectronic Methods 0.000 description 3
- 150000002823 nitrates Chemical class 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 238000006748 scratching Methods 0.000 description 3
- 230000002393 scratching effect Effects 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- CUNWUEBNSZSNRX-RKGWDQTMSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;(z)-octadec-9-enoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O CUNWUEBNSZSNRX-RKGWDQTMSA-N 0.000 description 2
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- 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 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical class NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 description 2
- 239000004147 Sorbitan trioleate Substances 0.000 description 2
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000003973 alkyl amines Chemical class 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000008365 aqueous carrier Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- PEYVWSJAZONVQK-UHFFFAOYSA-N hydroperoxy(oxo)borane Chemical compound OOB=O PEYVWSJAZONVQK-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- GSGDTSDELPUTKU-UHFFFAOYSA-N nonoxybenzene Chemical compound CCCCCCCCCOC1=CC=CC=C1 GSGDTSDELPUTKU-UHFFFAOYSA-N 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 2
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 239000000249 polyoxyethylene sorbitan monopalmitate Substances 0.000 description 2
- 235000010483 polyoxyethylene sorbitan monopalmitate Nutrition 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 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
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- 150000003376 silicon Chemical class 0.000 description 2
- 229940035044 sorbitan monolaurate Drugs 0.000 description 2
- 239000001570 sorbitan monopalmitate Substances 0.000 description 2
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 2
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 2
- 229960005078 sorbitan sesquioleate Drugs 0.000 description 2
- 235000019337 sorbitan trioleate Nutrition 0.000 description 2
- 229960000391 sorbitan trioleate Drugs 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 239000003021 water soluble solvent Substances 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- 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
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- 125000002373 5 membered heterocyclic group Chemical group 0.000 description 1
- 125000004070 6 membered heterocyclic group Chemical group 0.000 description 1
- ZVZFHCZCIBYFMZ-UHFFFAOYSA-N 6-methylheptoxybenzene Chemical compound CC(C)CCCCCOC1=CC=CC=C1 ZVZFHCZCIBYFMZ-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
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- C09G—POLISHING COMPOSITIONS; SKI WAXES
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
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Abstract
【解決手段】(i)銅を含む少なくとも1つの金属層を含む基材を化学機械研磨(CMP)系と接触させる工程と、(ii)該銅を含む金属層の少なくとも一部を削って該基材を研磨する工程とを含む、基材を研磨する方法が提供される。このCMP系は、(a)研磨剤、(b)両親媒性非イオン性界面活性剤、(c)金属層を酸化するための手段、(d)有機酸、(e)腐食抑制剤、及び(f)液体キャリヤーを含む。さらに、第1の金属層と第2の異なる金属層を含む基材を研磨する2工程の方法が提供される。第1金属層は、研磨剤と液体キャリヤーを含む第1CMP系で研磨され、第2金属層は、(a)研磨剤、(b)両親媒性非イオン性界面活性剤、及び(c)液体キャリヤーを含む第2CMP系で研磨される。
【選択図】図3
Description
この例により、界面活性剤のHLB値の関数として、銅のディッシング値とエロージョン値に関する研磨用組成物中の両親媒性非イオン性界面活性剤の効果が説明される。
この例により、界面活性剤の濃度の関数として、銅のディッシング値とエロージョン値に関する研磨用組成物中の両親媒性非イオン性界面活性剤の効果が説明される。
この例は、本発明の研磨用組成物における両親媒性非イオン性界面活性剤の存在が、大部分の銅の除去に関する第1工程の銅研磨で使用できることを示している。
この例は、本発明の研磨用組成物における両親媒性非イオン性界面活性剤の存在が、第1工程の銅研磨において銅のディッシングを低下させることを示している。
Claims (42)
- 基材を研磨する方法であって、
(i)銅を含む少なくとも1つの金属層を含む基材を、
(a)100nm以上の平均一次粒子サイズを有する研磨剤、
(b)頭部基と末端基を含み、6を超えるHLB値を有する両親媒性非イオン性界面活性剤、
(c)銅を含む金属層を酸化するための手段、
(d)有機酸、
(e)腐食抑制剤、及び
(f)液体キャリヤー
を含む化学機械研磨系と接触させる工程と、
(ii)該銅を含む金属層の少なくとも一部を削って該基材を研磨する工程と
を含む、基材を研磨する方法。 - 前記両親媒性非イオン性界面活性剤が7以上のHLBを有する、請求項1に記載の方法。
- 前記両親媒性非イオン性界面活性剤が18以下のHLBを有する、請求項1に記載の方法。
- 前記末端基が、4以上のエチレンオキシド反復単位を有するポリオキシエチレン、ソルビタン、又はそれらのうち2種以上を含む、請求項1に記載の方法。
- 前記頭部基が、ポリシロキサン、テトラ−C1-4−アルキルデシン、飽和若しくは部分不飽和のC6-30アルキル、ポリオキシプロピレン、C6-12アルキルフェニル、C6-12アルキルシクロヘキシル、ポリエチレン、又はそれらのうち2種以上を含む、請求項1に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルエーテルとポリオキシエチレンアルキル酸エステルから成る群より選択され、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれである、請求項1に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルフェニルエーテル又はポリオキシエチレンアルキルシクロヘキシルエーテルであり、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれであることができる、請求項1に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ソルビタンアルキル酸エステル又はポリオキシエチレンソルビタンアルキル酸エステルであり、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれであることができる、請求項1に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンとポリジメチルシロキサン、ポリオキシエチレンとポリオキシプロピレン、又はポリオキシエチレンとポリエチレンを含むブロック又はグラフトコポリマーである、請求項1に記載の方法。
- 前記研磨剤が、105nm〜180nmの平均粒子サイズを有する、請求項1に記載の方法。
- 前記研磨剤が、シリカ又は高分子電解質被覆のアルミナを含む、請求項1に記載の方法。
- 前記銅を含む金属層を酸化するための手段が化学酸化剤を含む、請求項1に記載の方法。
- 前記有機酸が、酢酸、シュウ酸、酒石酸、乳酸、フタル酸、プロピオン酸、及びそれらの組み合わせから成る群より選択される、請求項1に記載の方法。
- 前記腐食抑制剤が、ベンゾトリアゾール、6−トリルトリアゾール、1,2,3−トリアゾール、1,2,4−トリアゾール、及びそれらの組み合わせから成る群より選択される、請求項1に記載の方法。
- 前記化学機械研磨系が3以上のpHを有する、請求項1に記載の方法。
- 前記化学機械研磨系が、前記液体キャリヤーとその中に溶解又は懸濁している全配合物の質量に基づいて、0.005wt%以上の前記両親媒性非イオン性界面活性剤を含む、請求項1に記載の方法。
- 基材を研磨する方法であって、
(i)銅を含む少なくとも1つの金属層を含む基材を、
(a)シリカ、セリア、チタニア、ジルコニア、それらの共形成粒子、ポリマー粒子、それらのポリマー被覆粒子、ポリマー被覆アルミナ、及びそれらの組み合わせから成る群より選択された研磨剤、
(b)頭部基と末端基を含み、6を超えるHLB値を有する両親媒性非イオン性界面活性剤、
(c)銅を含む金属層を酸化するための手段、
(d)有機酸、
(e)腐食抑制剤、及び
(f)液体キャリヤー
を含む化学機械研磨系と接触させる工程と、
(ii)該銅を含む金属層の少なくとも一部を削って該基材を研磨する工程と
を含む、基材を研磨する方法。 - 前記両親媒性非イオン性界面活性剤が18以下のHLBを有する、請求項17に記載の方法。
- 前記末端基が、4以上のエチレンオキシド反復単位を有するポリオキシエチレン、ソルビタン、又はそれらのうち2種以上を含む、請求項17に記載の方法。
- 前記頭部基が、ポリシロキサン、テトラ−C1-4−アルキルデシン、飽和若しくは部分不飽和のC6-30アルキル、ポリオキシプロピレン、C6-12アルキルフェニル、C6-12アルキルシクロヘキシル、ポリエチレン、又はそれらのうち2種以上を含む、請求項17に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルエーテルとポリオキシエチレンアルキル酸エステルから成る群より選択され、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれである、請求項17に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルフェニルエーテル又はポリオキシエチレンアルキルシクロヘキシルエーテルであり、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれであることができる、請求項17に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ソルビタンアルキル酸エステル又はポリオキシエチレンソルビタンアルキル酸エステルであり、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれであることができる、請求項17に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンとポリジメチルシロキサン、ポリオキシエチレンとポリオキシプロピレン、又はポリオキシエチレンとポリエチレンを含むブロック又はグラフトコポリマーである、請求項17に記載の方法。
- 前記研磨剤が、100nm以上の平均粒子サイズを有する、請求項17に記載の方法。
- 前記研磨剤が、シリカ又はポリマー被覆アルミナを含む、請求項17に記載の方法。
- 前記銅を含む金属層を酸化するための手段が化学酸化剤を含む、請求項17に記載の方法。
- 前記有機酸が、酢酸、シュウ酸、酒石酸、乳酸、フタル酸、プロピオン酸、及びそれらの組み合わせから成る群より選択される、請求項17に記載の方法。
- 前記腐食抑制剤が、ベンゾトリアゾール、6−トリルトリアゾール、1,2,3−トリアゾール、1,2,4−トリアゾール、及びそれらの組み合わせから成る群より選択される、請求項17に記載の方法。
- 前記化学機械研磨系が3以上のpHを有する、請求項17に記載の方法。
- 前記化学機械研磨系が、前記液体キャリヤーとその中に溶解又は懸濁している全配合物の質量に基づいて、0.005wt%以上の前記両親媒性非イオン性界面活性剤を含む、請求項17に記載の方法。
- 基材を研磨する方法であって、
(i)少なくとも第1の金属層と第2の異なる金属層を含む基材を、該第1の金属層の除去に適した第1化学機械研磨系であって、研磨剤と液体キャリヤーを含む第1化学機械研磨系と接触させ、該第1金属層の少なくとも一部を削って該基材を研磨する工程と、続いて
(ii)該基材を該第2の金属層の除去に適した第2化学機械研磨系であって、
(a)研磨剤
(b)頭部基と末端基を含み、6を超えるHLB値を有する両親媒性非イオン性界面活性剤、及び
(c)液体キャリヤー
を含む第2化学機械研磨系と接触させ、該第2金属層の少なくとも一部を削って該基材を研磨する工程とを含み、かつ
該第1及び第2化学機械研磨系が異なる、基材を研磨する方法。 - 前記両親媒性非イオン性界面活性剤が18以下のHLBを有する、請求項32に記載の方法。
- 前記第1金属層が、銅、タングステン、それらの合金、又はそれらの組み合わせを含む、請求項32に記載の方法。
- 前記第2金属層が、タンタル、チタン、それらの合金、又はそれらの組み合わせを含む、請求項32に記載の方法。
- 前記第2化学機械研磨系が、前記第2金属層を酸化するための手段、有機酸、又は腐食抑制剤をさらに含む、請求項32に記載の方法。
- 前記末端基が、4以上のエチレンオキシド反復単位を有するポリオキシエチレン、ソルビタン、又はそれらのうち2種以上を含む、請求項32に記載の方法。
- 前記頭部基が、ポリシロキサン、テトラ−C1-4−アルキルデシン、飽和若しくは部分不飽和のC6-30アルキル、ポリオキシプロピレン、C6-12アルキルフェニル、C6-12アルキルシクロヘキシル、ポリエチレン、又はそれらのうち2種以上を含む、請求項32に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルエーテルとポリオキシエチレンアルキル酸エステルから成る群より選択され、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれである、請求項32に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンアルキルフェニルエーテル又はポリオキシエチレンアルキルシクロヘキシルエーテルであり、アルキルがC6-30アルキルであり、飽和又は部分不飽和であることができ、任意選択で枝分かれであることができる、請求項32に記載の方法。
- 前記両親媒性非イオン性界面活性剤が、ポリオキシエチレンとポリジメチルシロキサン、ポリオキシエチレンとポリオキシプロピレン、又はポリオキシエチレンとポリエチレンを含むブロック又はグラフトコポリマーである、請求項32に記載の方法。
- 前記研磨剤が、シリカ又はポリマー被覆アルミナを含む、請求項32に記載の方法。
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AU2003263536A8 (en) | 2004-05-04 |
SG111616A1 (en) | 2007-05-30 |
CN100352874C (zh) | 2007-12-05 |
ATE364070T1 (de) | 2007-06-15 |
WO2004033574A1 (en) | 2004-04-22 |
JP5964795B2 (ja) | 2016-08-03 |
EP1560890B1 (en) | 2007-06-06 |
EP1560890A1 (en) | 2005-08-10 |
TWI259845B (en) | 2006-08-11 |
DE60314274T2 (de) | 2007-09-20 |
AU2003263536A1 (en) | 2004-05-04 |
JP5448994B2 (ja) | 2014-03-19 |
KR20050070048A (ko) | 2005-07-05 |
US20030228763A1 (en) | 2003-12-11 |
JP2013258430A (ja) | 2013-12-26 |
TW200420697A (en) | 2004-10-16 |
WO2004033574A8 (en) | 2005-09-29 |
KR101201115B1 (ko) | 2012-11-13 |
DE60314274D1 (de) | 2007-07-19 |
CN1688665A (zh) | 2005-10-26 |
US6936543B2 (en) | 2005-08-30 |
JP2006502579A (ja) | 2006-01-19 |
KR20110008342A (ko) | 2011-01-26 |
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