JP2020534679A - タングステンcmp用組成物 - Google Patents
タングステンcmp用組成物 Download PDFInfo
- Publication number
- JP2020534679A JP2020534679A JP2020514585A JP2020514585A JP2020534679A JP 2020534679 A JP2020534679 A JP 2020534679A JP 2020514585 A JP2020514585 A JP 2020514585A JP 2020514585 A JP2020514585 A JP 2020514585A JP 2020534679 A JP2020534679 A JP 2020534679A
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- Prior art keywords
- acid
- cationic polymer
- polishing
- composition
- ppm
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 192
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 86
- 239000010937 tungsten Substances 0.000 title claims abstract description 86
- 238000005498 polishing Methods 0.000 claims abstract description 194
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 116
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000002245 particle Substances 0.000 claims abstract description 74
- 229910052742 iron Inorganic materials 0.000 claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 229920006317 cationic polymer Polymers 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 21
- 238000000227 grinding Methods 0.000 claims abstract description 20
- 239000000178 monomer Substances 0.000 claims abstract description 20
- 150000001413 amino acids Chemical class 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 59
- 239000002253 acid Substances 0.000 claims description 47
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 44
- 239000008119 colloidal silica Substances 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 37
- 229920000656 polylysine Polymers 0.000 claims description 35
- 108010039918 Polylysine Proteins 0.000 claims description 34
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- 239000003381 stabilizer Substances 0.000 claims description 29
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 27
- 239000007800 oxidant agent Substances 0.000 claims description 27
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 24
- 239000003054 catalyst Substances 0.000 claims description 21
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 18
- 235000001014 amino acid Nutrition 0.000 claims description 18
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 18
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 12
- 229920000724 poly(L-arginine) polymer Polymers 0.000 claims description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- TXXHDPDFNKHHGW-UHFFFAOYSA-N muconic acid Chemical compound OC(=O)C=CC=CC(O)=O TXXHDPDFNKHHGW-UHFFFAOYSA-N 0.000 claims description 10
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 claims description 10
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- 239000001361 adipic acid Substances 0.000 claims description 9
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- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 claims description 8
- 235000006408 oxalic acid Nutrition 0.000 claims description 8
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 8
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 claims description 8
- XNCSCQSQSGDGES-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]propyl-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)C(C)CN(CC(O)=O)CC(O)=O XNCSCQSQSGDGES-UHFFFAOYSA-N 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 6
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- 238000010494 dissociation reaction Methods 0.000 claims description 6
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- XVOUMQNXTGKGMA-OWOJBTEDSA-N (E)-glutaconic acid Chemical compound OC(=O)C\C=C\C(O)=O XVOUMQNXTGKGMA-OWOJBTEDSA-N 0.000 claims description 5
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims description 5
- TXXHDPDFNKHHGW-CCAGOZQPSA-N Muconic acid Natural products OC(=O)\C=C/C=C\C(O)=O TXXHDPDFNKHHGW-CCAGOZQPSA-N 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 235000003704 aspartic acid Nutrition 0.000 claims description 5
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 claims description 5
- 235000015165 citric acid Nutrition 0.000 claims description 5
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 4
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 4
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- 229940024606 amino acid Drugs 0.000 description 15
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- -1 for example Substances 0.000 description 12
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 10
- 239000000654 additive Substances 0.000 description 10
- 229910017604 nitric acid Inorganic materials 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 239000003139 biocide Substances 0.000 description 9
- 239000004472 Lysine Substances 0.000 description 8
- 238000004630 atomic force microscopy Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000003628 erosive effect Effects 0.000 description 8
- 229960003646 lysine Drugs 0.000 description 8
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 7
- 230000003115 biocidal effect Effects 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 7
- 229920001308 poly(aminoacid) Polymers 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 description 5
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 5
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 5
- SZQUEWJRBJDHSM-UHFFFAOYSA-N iron(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O SZQUEWJRBJDHSM-UHFFFAOYSA-N 0.000 description 5
- 235000018977 lysine Nutrition 0.000 description 5
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- 229920001519 homopolymer Polymers 0.000 description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 4
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- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
- 235000011007 phosphoric acid Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 235000019766 L-Lysine Nutrition 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 229910052719 titanium Inorganic materials 0.000 description 3
- QYYMDNHUJFIDDQ-UHFFFAOYSA-N 5-chloro-2-methyl-1,2-thiazol-3-one;2-methyl-1,2-thiazol-3-one Chemical compound CN1SC=CC1=O.CN1SC(Cl)=CC1=O QYYMDNHUJFIDDQ-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
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- 125000003277 amino group Chemical group 0.000 description 2
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
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- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 1
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- PEYVWSJAZONVQK-UHFFFAOYSA-N hydroperoxy(oxo)borane Chemical compound OOB=O PEYVWSJAZONVQK-UHFFFAOYSA-N 0.000 description 1
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- 150000004694 iodide salts Chemical class 0.000 description 1
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- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 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
- ZJBMGHSHQUAKKI-UHFFFAOYSA-L iron(2+);phthalate Chemical compound [Fe+2].[O-]C(=O)C1=CC=CC=C1C([O-])=O ZJBMGHSHQUAKKI-UHFFFAOYSA-L 0.000 description 1
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 description 1
- NPFOYSMITVOQOS-UHFFFAOYSA-K iron(III) citrate Chemical compound [Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NPFOYSMITVOQOS-UHFFFAOYSA-K 0.000 description 1
- QDUZQOIJXPPTLY-IYEMJOQQSA-N iron;(2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanoic acid Chemical compound [Fe].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O QDUZQOIJXPPTLY-IYEMJOQQSA-N 0.000 description 1
- LZKLAOYSENRNKR-LNTINUHCSA-N iron;(z)-4-oxoniumylidenepent-2-en-2-olate Chemical compound [Fe].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O LZKLAOYSENRNKR-LNTINUHCSA-N 0.000 description 1
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 150000002690 malonic acid derivatives Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 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
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- LLYCMZGLHLKPPU-UHFFFAOYSA-N perbromic acid Chemical compound OBr(=O)(=O)=O LLYCMZGLHLKPPU-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 150000002978 peroxides Chemical class 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- 125000005496 phosphonium group Chemical group 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 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
- 229920002643 polyglutamic acid Polymers 0.000 description 1
- 229920002714 polyornithine Polymers 0.000 description 1
- 108010055896 polyornithine Proteins 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000003658 tungsten compounds Chemical class 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 description 1
- 229920001345 ε-poly-D-lysine Polymers 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
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
-
- 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
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- 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
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- 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
- C09G1/06—Other polishing compositions
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- 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
- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
- C09K13/06—Etching, surface-brightening or pickling compositions containing an inorganic acid with organic material
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/30—Acidic compositions for etching other metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
-
- 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
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- 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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- Condensed Matter Physics & Semiconductors (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
使用直前に水で2:1に希釈される濃縮物として、9つの研磨組成物(対照AおよびBならびに実施例1A、1B、1C、1D、1E、1F、および1G)を調製した。組成物1A〜1Gには、さまざまな濃度のε−ポリ−L−リジン(30〜3000重量ppmの範囲)が含まれていた。濃縮コロイダルシリカ(Akzo Nobel、Fuso、およびNalcoから市販されているものなど)を、マロン酸、硝酸第二鉄、TBAH(水酸化テトラブチルアンモニウム)、適切な量のε−ポリ−L−リジン、およびKathon(登録商標)殺生物剤を含む混合物に添加することにより9つの研磨組成物の各々を調製した。コロイダルシリカの平均粒径は120nmであった。対照Aにはε−ポリ−L−リジンは含まれていなかった。対照Bには、ε−ポリ−L−リジンの代わりに3000重量ppmのリジンが含まれていた。9つの研磨組成物の各々は、2700重量ppmのテトラブチルアンモニウムヒドロキシド(TBAH)、81重量ppmのマロン酸、3.7重量ppmの硝酸第二鉄九水和物(Fe(NO3)3・9H2O)、7.5重量パーセントのコロイダルシリカおよび15重量ppmのKathon LXを含んでいた。硝酸を使用してpHを3.05に調整した。ε−ポリ−L−リジンの濃度は、以下により詳細に記載されるように変化した。
24の研磨組成物が調製された(実施例2A〜2X)。調製された研磨組成物は、添加剤の種類と濃度を除いて同一であった。タングステンのエッチング速度は、研磨組成物ごとに測定され、添加剤の効果を評価した。タングステンのエッチング速度は、実施例1で上述したのと同じ手順を使用して測定された(過酸化水素も実施例1で説明したように0.5重量パーセントの濃度まで加えられた)。
この実施例では、3つの研磨組成物について、タングステン研磨速度および線陥凹(ディッシング)を評価した。この実施例は、タングステンCMP操作中のディッシングに対するポリリジンの抑制効果を示している。CMP組成物は、実施例1に関して上述したものと同様の手順を使用して得られた(濃縮コロイダルシリカがマロン酸と硝酸第二鉄を含む混合物に添加された)。3つの研磨組成物の各々は、445重量ppmのマロン酸、206重量ppmの硝酸第二鉄九水和物(Fe(NO3)3・9H2O)、0.33重量パーセントのカチオン性アミノシラン処理コロイダルシリカ(米国特許第7,994,057号および同第9,028,572号に開示されているように調製)、15重量ppmのKathon LXおよび2.0重量パーセントの過酸化水素をpH2.3(pHは硝酸を使用して調整)で含んでいた。処理されたコロイダルシリカは120nmの平均粒径を有していた。対照C研磨組成物は、さらなる成分を含まなかった。対照D研磨組成物は、25重量ppmのカチオン性ポリマーポリジアリルジメチルアンモニウムクロリド(ポリDADMAC)を含んでいた。研磨組成物3Aは、25重量ppmのε−ポリ−L−リジンを含んでいた。
この実施例では、9つの研磨組成物について、タングステン研磨速度と線陥凹(ディッシング)を評価した。この実施例は、タングステンCMP操作中のディッシングに対するカチオン性ポリアミノ酸の効果を示している。CMP組成物は、実施例1に関して上述したものと同様の手順を使用して得られた(濃縮コロイダルシリカがマロン酸と硝酸第二鉄を含む混合物に添加された)。各研磨組成物は、445重量ppmのマロン酸、206重量ppmの硝酸第二鉄九水和物(Fe(NO3)3・9H2O)、0.33重量パーセントのカチオン性アミノシラン処理コロイダルシリカ(米国特許第7,994,057号および同第9,028,572号に開示されているように調製)、15重量ppmのKathon LXおよび2.0重量パーセントの過酸化水素をpH2.3(pHは硝酸を使用して調整)で含んでいた。処理されたコロイダルシリカは120nmの平均粒径を有していた。
この実施例では、5つの研磨組成物について、タングステン研磨速度と線陥凹(ディッシング)を評価した。この実施例は、タングステンCMP操作中のタングステン研磨速度とディッシングに対するε−ポリ−L−リジン濃度の影響を示している。CMP組成物は、実施例1に関して上述したものと同様の手順を使用して得られた(濃縮コロイダルシリカがマロン酸と硝酸第二鉄を含む混合物に添加された)。各研磨組成物は、445重量ppmのマロン酸、206重量ppmの硝酸第二鉄九水和物(Fe(NO3)3・9H2O)、0.33重量パーセントのカチオン性アミノシラン処理コロイダルシリカ(米国特許第7,994,057号および同第9,028,572号に開示されているように調製)、15重量ppmのKathon LXおよび2.0重量パーセントの過酸化水素をpH2.3(pHは硝酸を使用して調整)で含んでいた。処理されたコロイダルシリカは120nmの平均粒径を有していた。対照C研磨組成物は、さらなる成分を含まなかった(すなわち、ε−ポリ−L−リジンを含まなかった)。研磨組成物5A〜5Dは、表6に示すように、ε−ポリ−L−リジン12ppm(5A)、25ppm(5B)、50ppm(5C)、および75ppm(5D)を含んでいた。
この実施例では、タングステン、TEOS、およびパターン化フィールド酸化物研磨速度、ならびに線浸食および線陥凹(ディッシング)を2つのバフ研磨組成物について評価した。この実施例は、タングステンバフCMP操作中の線浸食の低減におけるε−ポリ−L−リジンの効果を示している。2つの研磨組成物の各々は、100重量ppmのマロン酸、54重量ppmの硝酸第二鉄九水和物(Fe(NO3)3・9H2O)、2重量パーセントのカチオン性コロイダルシリカ(同一出願人による米国特許第9,422,456号の実施例13に開示されるように調製)、15重量ppmのKathon LXおよび0.80重量パーセントの過酸化水素をpH4.4(pHは硝酸を使用して調整)で含んでいた。研磨組成物7Aは、追加の1600ppmのグリシンも含有し、一方研磨組成物7Bは、追加の25ppmのε−ポリ−L−リジンを含有した。
Claims (25)
- 化学機械研磨組成物であって、
水性液体キャリアと、
前記液体キャリアに分散した研削粒子と、
鉄含有促進剤と、
アミノ酸モノマー単位を有するカチオン性ポリマーと、を含む化学機械研磨組成物。 - 前記研削粒子がコロイダルシリカ研削材を含む、請求項1に記載の組成物。
- 前記コロイダルシリカ研削材が少なくとも10mVの永久正電荷を有する、請求項2に記載の組成物。
- 前記鉄含有促進剤が可溶性鉄含有触媒を含む、請求項1に記載の組成物。
- 前記可溶性鉄含有触媒に結合した安定剤をさらに含み、前記安定剤が、リン酸、フタル酸、クエン酸、アジピン酸、シュウ酸、マロン酸、アスパラギン酸、コハク酸、グルタル酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、マレイン酸、グルタコン酸、ムコン酸、エチレンジアミン四酢酸、プロピレンジアミン四酢酸、およびそれらの混合物からなる群から選択される、請求項4に記載の組成物。
- 過酸化水素酸化剤をさらに含む、請求項1に記載の組成物。
- 約1.0〜約5.0の範囲のpHを有する、請求項1に記載の組成物。
- 前記カチオン性ポリマーが、下式による化合物を含み、
- 前記カチオン性ポリマーが約5より大きい酸解離定数(pKa)を有する、請求項8に記載の組成物。
- 前記カチオン性ポリマーが6〜11の酸解離定数(pKa)を有する、請求項8に記載の組成物。
- 前記カチオン性ポリマーが、ポリリジン、ポリアルギニン、およびポリヒスチジンのうちの少なくとも1つを含む、請求項8に記載の組成物。
- 前記カチオン性ポリマーがポリリジンを含む、請求項11に記載の組成物。
- 前記カチオン性ポリマーがε−ポリ−L−リジンを含む、請求項12に記載の組成物。
- 約1〜約200重量ppmの前記カチオン性ポリマーを含む、請求項8に記載の組成物。
- 約5〜約50重量ppmの前記カチオン性ポリマーを含む、請求項8に記載の組成物。
- 前記カチオン性ポリマーが約1〜約100kDaの範囲の分子量を有する、請求項8に記載の組成物。
- 化学機械研磨組成物であって、
水性液体キャリアと、
前記液体キャリアに分散したコロイダルシリカ研削粒子と、
可溶性鉄含有触媒と、
前記可溶性鉄含有触媒に結合した安定剤と、
アミノ酸モノマー単位を有するカチオン性ポリマーであって、ポリリジン、ポリアルギニン、およびポリヒスチジンのうちの少なくとも1つを含むカチオン性ポリマーと、を含み、
前記組成物が約1〜約5の範囲のpHを有する、組成物。 - 前記カチオン性ポリマーがポリリジンである、請求項17に記載の組成物。
- タングステン層を含む基板を化学機械研磨する方法であって、
(a)前記基板を、
(i)水性液体キャリアと、
(ii)前記液体キャリアに分散した研削粒子と、
(iii)鉄含有促進剤と、
(iv)アミノ酸モノマー単位を有するカチオン性ポリマーと、を含む研磨組成物と接触させることと、
(b)前記研磨組成物を前記基板に対して動かすことと、
(c)前記基板を研削して、前記基板から前記タングステンの一部を除去し、それにより基板を研磨することと、を含む方法。 - 前記研削粒子が少なくとも10mVの永久正電荷を有するコロイダルシリカを含む、請求項19に記載の方法。
- (i)前記鉄含有促進剤が、可溶性鉄含有触媒を含み、
(ii)前記研磨組成物が、前記可溶性鉄含有触媒に結合した安定剤をさらに含み、前記安定剤が、リン酸、フタル酸、クエン酸、アジピン酸、シュウ酸、マロン酸、アスパラギン酸、コハク酸、グルタル酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、マレイン酸、グルタコン酸、ムコン酸、エチレンジアミン四酢酸、プロピレンジアミン四酢酸、およびそれらの混合物からなる群から選択される、請求項19に記載の方法。 - (i)前記研磨組成物が、過酸化水素酸化剤をさらに含み、
(ii)前記研磨組成物が、約1.0〜約5.0の範囲のpHを有する、請求項19に記載の方法。 - 前記カチオン性ポリマーが、ポリリジン、ポリアルギニン、およびポリヒスチジンのうちの少なくとも1つを含む、請求項19に記載の方法。
- 前記カチオン性ポリマーがポリリジンを含む、請求項23に記載の方法。
- 約1〜約200重量ppmの前記カチオン性ポリマーを含む、請求項23に記載の方法。
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