WO1997005228A1 - Procede de traitement de la surface d'un substrat et composition de traitement de surface prevue a cet effet - Google Patents
Procede de traitement de la surface d'un substrat et composition de traitement de surface prevue a cet effet Download PDFInfo
- Publication number
- WO1997005228A1 WO1997005228A1 PCT/JP1996/002077 JP9602077W WO9705228A1 WO 1997005228 A1 WO1997005228 A1 WO 1997005228A1 JP 9602077 W JP9602077 W JP 9602077W WO 9705228 A1 WO9705228 A1 WO 9705228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- acid
- complexing agent
- surface treatment
- atom
- Prior art date
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- 238000004381 surface treatment Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 108
- 239000000203 mixture Substances 0.000 title claims abstract description 91
- 239000000758 substrate Substances 0.000 title claims abstract description 86
- 239000008139 complexing agent Substances 0.000 claims abstract description 178
- -1 hydroxy mono- Chemical class 0.000 claims abstract description 62
- 125000004429 atom Chemical group 0.000 claims abstract description 60
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 53
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 23
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 18
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 12
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 11
- 150000002367 halogens Chemical class 0.000 claims abstract description 11
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011593 sulfur Substances 0.000 claims abstract description 10
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims abstract description 9
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract description 9
- 125000004430 oxygen atom Chemical group O* 0.000 claims abstract description 6
- 238000001465 metallisation Methods 0.000 claims abstract description 4
- 230000003449 preventive effect Effects 0.000 claims abstract 3
- 229910052751 metal Inorganic materials 0.000 claims description 124
- 239000002184 metal Substances 0.000 claims description 122
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 74
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 71
- 239000002253 acid Substances 0.000 claims description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000012535 impurity Substances 0.000 claims description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 239000003112 inhibitor Substances 0.000 claims description 34
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 33
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 33
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 30
- 229910021529 ammonia Inorganic materials 0.000 claims description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 22
- 150000003839 salts Chemical class 0.000 claims description 21
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 239000007800 oxidant agent Chemical group 0.000 claims description 17
- 125000004434 sulfur atom Chemical group 0.000 claims description 17
- 125000005843 halogen group Chemical group 0.000 claims description 15
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 14
- 150000003863 ammonium salts Chemical class 0.000 claims description 13
- 239000013078 crystal Substances 0.000 claims description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 7
- 229910017604 nitric acid Inorganic materials 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 150000004715 keto acids Chemical class 0.000 claims description 5
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 4
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 claims description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 125000006290 2-hydroxybenzyl group Chemical group [H]OC1=C(C([H])=C([H])C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 claims description 3
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 3
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 claims description 3
- 150000001728 carbonyl compounds Chemical class 0.000 claims description 3
- 125000006841 cyclic skeleton Chemical group 0.000 claims description 3
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- CCUNBJAVKGOAEV-UHFFFAOYSA-N 2,2-dihydroxy-2-phenylacetic acid;ethane-1,2-diamine Chemical compound NCCN.OC(=O)C(O)(O)C1=CC=CC=C1 CCUNBJAVKGOAEV-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 239000003929 acidic solution Substances 0.000 claims description 2
- 125000003342 alkenyl group Chemical group 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 claims description 2
- 229940005991 chloric acid Drugs 0.000 claims description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 2
- 229940077239 chlorous acid Drugs 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 125000001033 ether group Chemical group 0.000 claims description 2
- 125000005638 hydrazono group Chemical group 0.000 claims description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 claims description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 2
- 229910000043 hydrogen iodide Inorganic materials 0.000 claims description 2
- 125000002349 hydroxyamino group Chemical group [H]ON([H])[*] 0.000 claims description 2
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 125000000018 nitroso group Chemical group N(=O)* 0.000 claims description 2
- 150000003573 thiols Chemical group 0.000 claims description 2
- PLFFHJWXOGYWPR-HEDMGYOXSA-N (4r)-4-[(3r,3as,5ar,5br,7as,11as,11br,13ar,13bs)-5a,5b,8,8,11a,13b-hexamethyl-1,2,3,3a,4,5,6,7,7a,9,10,11,11b,12,13,13a-hexadecahydrocyclopenta[a]chrysen-3-yl]pentan-1-ol Chemical compound C([C@]1(C)[C@H]2CC[C@H]34)CCC(C)(C)[C@@H]1CC[C@@]2(C)[C@]4(C)CC[C@@H]1[C@]3(C)CC[C@@H]1[C@@H](CCCO)C PLFFHJWXOGYWPR-HEDMGYOXSA-N 0.000 claims 1
- 125000000852 azido group Chemical group *N=[N+]=[N-] 0.000 claims 1
- 125000003916 ethylene diamine group Chemical group 0.000 claims 1
- 125000000717 hydrazino group Chemical group [H]N([*])N([H])[H] 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 60
- 239000000243 solution Substances 0.000 description 49
- 235000012431 wafers Nutrition 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 31
- 230000003405 preventing effect Effects 0.000 description 27
- 239000003125 aqueous solvent Substances 0.000 description 22
- 238000011109 contamination Methods 0.000 description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 229910052710 silicon Inorganic materials 0.000 description 21
- 239000010703 silicon Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 18
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 14
- 150000007513 acids Chemical class 0.000 description 13
- 150000001721 carbon Chemical group 0.000 description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 10
- 239000012459 cleaning agent Substances 0.000 description 10
- 238000005530 etching Methods 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000011259 mixed solution Substances 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000007654 immersion Methods 0.000 description 7
- 229910021642 ultra pure water Inorganic materials 0.000 description 7
- 239000012498 ultrapure water Substances 0.000 description 7
- 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 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 235000011054 acetic acid Nutrition 0.000 description 6
- 239000002738 chelating agent Substances 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 150000002989 phenols Chemical class 0.000 description 6
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 5
- 238000007664 blowing Methods 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- HGPSVOAVAYJEIJ-XDHOZWIPSA-N 2-[(e)-(3,4-dihydroxyphenyl)-(3-hydroxy-4-oxoniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate Chemical compound C1=CC(=O)C(O)=C\C1=C(C=1C(=CC=CC=1)S(O)(=O)=O)/C1=CC=C(O)C(O)=C1 HGPSVOAVAYJEIJ-XDHOZWIPSA-N 0.000 description 4
- YQUVCSBJEUQKSH-UHFFFAOYSA-N 3,4-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C(O)=C1 YQUVCSBJEUQKSH-UHFFFAOYSA-N 0.000 description 4
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007983 Tris buffer Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 235000013877 carbamide Nutrition 0.000 description 4
- 150000001805 chlorine compounds Chemical class 0.000 description 4
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 4
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 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
- 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
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- ISWQCIVKKSOKNN-UHFFFAOYSA-L Tiron Chemical compound [Na+].[Na+].OC1=CC(S([O-])(=O)=O)=CC(S([O-])(=O)=O)=C1O ISWQCIVKKSOKNN-UHFFFAOYSA-L 0.000 description 3
- 229940024606 amino acid Drugs 0.000 description 3
- 235000001014 amino acid Nutrition 0.000 description 3
- 150000001413 amino acids Chemical class 0.000 description 3
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 3
- WZJYKHNJTSNBHV-UHFFFAOYSA-N benzo[h]quinoline Chemical class C1=CN=C2C3=CC=CC=C3C=CC2=C1 WZJYKHNJTSNBHV-UHFFFAOYSA-N 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- IFQUWYZCAGRUJN-UHFFFAOYSA-N ethylenediaminediacetic acid Chemical compound OC(=O)CNCCNCC(O)=O IFQUWYZCAGRUJN-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 150000007857 hydrazones Chemical class 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- NBZBKCUXIYYUSX-UHFFFAOYSA-N iminodiacetic acid Chemical compound OC(=O)CNCC(O)=O NBZBKCUXIYYUSX-UHFFFAOYSA-N 0.000 description 3
- 229960003540 oxyquinoline Drugs 0.000 description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 3
- 229960004889 salicylic acid Drugs 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical class C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 2
- BRRSNXCXLSVPFC-UHFFFAOYSA-N 2,3,4-Trihydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C(O)=C1O BRRSNXCXLSVPFC-UHFFFAOYSA-N 0.000 description 2
- KMVWNDHKTPHDMT-UHFFFAOYSA-N 2,4,6-tripyridin-2-yl-1,3,5-triazine Chemical compound N1=CC=CC=C1C1=NC(C=2N=CC=CC=2)=NC(C=2N=CC=CC=2)=N1 KMVWNDHKTPHDMT-UHFFFAOYSA-N 0.000 description 2
- IUNJCFABHJZSKB-UHFFFAOYSA-N 2,4-dihydroxybenzaldehyde Chemical compound OC1=CC=C(C=O)C(O)=C1 IUNJCFABHJZSKB-UHFFFAOYSA-N 0.000 description 2
- UIAFKZKHHVMJGS-UHFFFAOYSA-N 2,4-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1O UIAFKZKHHVMJGS-UHFFFAOYSA-N 0.000 description 2
- OJVAMHKKJGICOG-UHFFFAOYSA-N 2,5-hexanedione Chemical compound CC(=O)CCC(C)=O OJVAMHKKJGICOG-UHFFFAOYSA-N 0.000 description 2
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical compound CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
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- 239000000696 magnetic material Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- 150000001247 metal acetylides Chemical class 0.000 description 1
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- TWXDDNPPQUTEOV-FVGYRXGTSA-N methamphetamine hydrochloride Chemical compound Cl.CN[C@@H](C)CC1=CC=CC=C1 TWXDDNPPQUTEOV-FVGYRXGTSA-N 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 229960004452 methionine Drugs 0.000 description 1
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N methylimidazole Natural products CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 1
- YACKEPLHDIMKIO-UHFFFAOYSA-N methylphosphonic acid Chemical compound CP(O)(O)=O YACKEPLHDIMKIO-UHFFFAOYSA-N 0.000 description 1
- KKZJGLLVHKMTCM-UHFFFAOYSA-N mitoxantrone Chemical compound O=C1C2=C(O)C=CC(O)=C2C(=O)C2=C1C(NCCNCCO)=CC=C2NCCNCCO KKZJGLLVHKMTCM-UHFFFAOYSA-N 0.000 description 1
- 229960001156 mitoxantrone Drugs 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical compound C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 description 1
- AXKVOSSFZLZIDC-UHFFFAOYSA-N n,n-diaminoaniline Chemical compound NN(N)C1=CC=CC=C1 AXKVOSSFZLZIDC-UHFFFAOYSA-N 0.000 description 1
- KURBTRNHGDQKOS-UHFFFAOYSA-N n-(ethylideneamino)aniline Chemical compound CC=NNC1=CC=CC=C1 KURBTRNHGDQKOS-UHFFFAOYSA-N 0.000 description 1
- SKVFQANNTIZUQZ-UHFFFAOYSA-N n-[2-[bis[hydroxy(methoxy)phosphoryl]amino]ethyl]-n-[hydroxy(methoxy)phosphoryl]-methoxyphosphonamidic acid Chemical compound COP(O)(=O)N(P(O)(=O)OC)CCN(P(O)(=O)OC)P(O)(=O)OC SKVFQANNTIZUQZ-UHFFFAOYSA-N 0.000 description 1
- FBRVRHJYPWFVCL-UHFFFAOYSA-N n-[4-[(2,3-dihydroxybenzoyl)amino]butyl]-2,3-dihydroxybenzamide Chemical compound OC1=CC=CC(C(=O)NCCCCNC(=O)C=2C(=C(O)C=CC=2)O)=C1O FBRVRHJYPWFVCL-UHFFFAOYSA-N 0.000 description 1
- GCTFIRZGPIUOAK-UHFFFAOYSA-N n-[[3,5-bis[[(2,3-dihydroxybenzoyl)amino]methyl]phenyl]methyl]-2,3-dihydroxybenzamide Chemical compound OC1=CC=CC(C(=O)NCC=2C=C(CNC(=O)C=3C(=C(O)C=CC=3)O)C=C(CNC(=O)C=3C(=C(O)C=CC=3)O)C=2)=C1O GCTFIRZGPIUOAK-UHFFFAOYSA-N 0.000 description 1
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- DYFFAVRFJWYYQO-UHFFFAOYSA-N n-methyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(C)C1=CC=CC=C1 DYFFAVRFJWYYQO-UHFFFAOYSA-N 0.000 description 1
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- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
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- PJGSXYOJTGTZAV-UHFFFAOYSA-N pinacolone Chemical compound CC(=O)C(C)(C)C PJGSXYOJTGTZAV-UHFFFAOYSA-N 0.000 description 1
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- 229920000768 polyamine Polymers 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
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- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
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- 125000000561 purinyl group Chemical class N1=C(N=C2N=CNC2=C1)* 0.000 description 1
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- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical compound C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- BDJXVNRFAQSMAA-UHFFFAOYSA-N quinhydrone Chemical compound OC1=CC=C(O)C=C1.O=C1C=CC(=O)C=C1 BDJXVNRFAQSMAA-UHFFFAOYSA-N 0.000 description 1
- 229940052881 quinhydrone Drugs 0.000 description 1
- MZPCTRNDYNHZQE-UHFFFAOYSA-N quinolin-8-yl acetate Chemical compound C1=CN=C2C(OC(=O)C)=CC=CC2=C1 MZPCTRNDYNHZQE-UHFFFAOYSA-N 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- RBWOKKSOBWYZQH-UHFFFAOYSA-N s-octyl benzenecarbothioate Chemical compound CCCCCCCCSC(=O)C1=CC=CC=C1 RBWOKKSOBWYZQH-UHFFFAOYSA-N 0.000 description 1
- WKEDVNSFRWHDNR-UHFFFAOYSA-N salicylanilide Chemical compound OC1=CC=CC=C1C(=O)NC1=CC=CC=C1 WKEDVNSFRWHDNR-UHFFFAOYSA-N 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229940043230 sarcosine Drugs 0.000 description 1
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 description 1
- 150000003349 semicarbazides Chemical class 0.000 description 1
- 229960001153 serine Drugs 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 1
- DIORMHZUUKOISG-UHFFFAOYSA-N sulfoformic acid Chemical compound OC(=O)S(O)(=O)=O DIORMHZUUKOISG-UHFFFAOYSA-N 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- 150000004897 thiazines Chemical class 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M thiocyanate group Chemical group [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003583 thiosemicarbazides Chemical class 0.000 description 1
- 229960002898 threonine Drugs 0.000 description 1
- 229940113082 thymine Drugs 0.000 description 1
- 150000004992 toluidines Chemical class 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- ULIAPOFMBCCSPE-UHFFFAOYSA-N tridecan-7-one Chemical compound CCCCCCC(=O)CCCCCC ULIAPOFMBCCSPE-UHFFFAOYSA-N 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
-
- 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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02054—Cleaning before device manufacture, i.e. Begin-Of-Line process combining dry and wet cleaning steps
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3947—Liquid compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/06—Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/261—Alcohols; Phenols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/263—Ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/264—Aldehydes; Ketones; Acetals or ketals
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/265—Carboxylic acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/266—Esters or carbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/267—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3227—Ethers thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3245—Aminoacids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/34—Organic compounds containing sulfur
-
- 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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
Definitions
- the present invention relates to a surface treatment method for a substrate and a surface treatment composition used for the method.
- the present invention relates to a surface treatment composition and a method for treating a surface of a substrate using the composition. More specifically, when a surface treatment of a substrate is performed using a surface treatment composition containing a liquid medium as a main component, contamination of the surface of the substrate with metal impurities from the surface treatment composition is prevented, and extremely stable cleaning is performed.
- the present invention relates to a surface treatment composition capable of achieving a stable substrate surface and a method for treating a surface of a substrate using the same. Furthermore, the present invention relates to a method for capturing the components of the surface treatment composition and a method for purifying a complexing agent used in the composition.
- aqueous solutions of water, electrolytic ionized water, acids, alkalis, oxidizing agents, surfactants and the like, or organic solvents and the like have been generally used for this type of detergent.
- the cleaning agent is required to have not only excellent cleaning performance but also a very low impurity concentration in the cleaning agent in order to prevent reverse contamination of the cleaning agent to the substrate by metal impurities.
- purification of semiconductor chemicals used for cleaning has been promoted, and the concentration of metal impurities contained in chemicals immediately after purification has reached a level that is difficult to detect with current analytical techniques.
- the problem of metal impurities in the solution adhering to the substrate surface is not only in the cleaning process, but also in the substrate surface treatment using a solution, such as the alkali etching of silicon substrates and the etching process of silicon oxide films with diluted hydrofluoric acid.
- a solution such as the alkali etching of silicon substrates and the etching process of silicon oxide films with diluted hydrofluoric acid.
- This is a major problem in the overall process.
- a noble metal impurity such as Cu or Au in the solution
- it will adhere to the silicon surface and significantly degrade the electrical characteristics of the device such as carrier lifetime.
- the alkaline etching step if there are trace metal impurities such as Fe and A 1 in the solution, these easily adhere to the substrate surface, which adversely affects the quality. Therefore, there is a strong demand for a technique for preventing such contamination in the surface treatment step using a solution.
- a complexing agent such as a chelating agent is added to the surface treatment agent to trap metal impurities in the liquid as a stable water-soluble complex and prevent adhesion to the substrate surface.
- a method has been proposed.
- a complexing agent such as ammonium cyanide-ethylenediaminetetraacetic acid (EDTA) is added to an aqueous solution of tetraalkylammonium hydroxide to dissolve metal impurities on the surface of a semiconductor substrate.
- EDTA ammonium cyanide-ethylenediaminetetraacetic acid
- Japanese Patent Application Laid-Open No. 3-2190000 describes chelating agents such as catechol and tiron, and Japanese Patent Application Laid-Open No.
- 5-275405 discloses a complexing agent such as phosphonic acid chelating agent or condensed phosphoric acid.
- a complexing agent such as a hydrazone derivative was added to an alkaline cleaning solution such as [ammonia + hydrogen peroxide + water] to prevent metal impurities from adhering to the substrate. It proposes to achieve a substrate surface free of metal contamination along with organic contamination.
- a cleaning solution containing a phosphonic acid chelating agent cannot sufficiently reduce A1 contamination on the substrate surface.
- A1 is to be removed by etching using hydrofluoric acid aqueous solution.
- the conventional method for preventing metal adhesion is not sufficiently effective. If the substrate needs to be cleaned, metal contamination must be removed in a later process, thereby reducing the number of processes. Increased production costs.
- the present invention has been made in order to solve the above problems, and a surface treatment composition capable of preventing contamination of metal impurities from a surface treatment composition to a substrate surface and stably achieving a very clean substrate surface. It is an object of the present invention to provide an article and a method for treating the surface of a substrate using the article. Disclosure of the invention
- the present invention provides two or more complexing agents as metal adhesion inhibitors in the surface treatment composition.
- the effect of preventing metal impurities from adhering to the substrate from the processing solution is remarkably improved by adding.
- the metal anti-adhesion agent to be added to the surface treatment composition is a specific complexing agent, even if one type of addition is used, a metal anti-adhesion preventing effect that is better than that of the prior art can be obtained. Included in the invention.
- ED DHA enylacetic acid
- a first gist of the present invention is a method for treating the surface of a substrate using a surface treatment composition, wherein the surface treatment composition contains a complexing agent as a metal adhesion inhibitor in a liquid medium.
- the complexing agent is at least one selected from the following (Group A) and at least one selected from any of the following groups (B1) to (B6): A complexing agent.
- Group A A complexing agent having an aromatic hydrocarbon ring in its molecular structure and having at least one of an O H group and a Z or O— group bonded to a carbon atom constituting the ring.
- Group B2 A complexing agent having at least one atom selected from a halogen atom, a sulfur atom and a carbon atom as a donor atom in the molecular structure.
- Group B3 Having at least one oxygen atom which is a donor atom in the molecular structure, but having no carbonyl group or carboxyl group, and a nitrogen atom, a halogen atom, a sulfur atom or a carbon atom which is a donor atom Having none of the atoms
- / complexing agent Having at least one oxygen atom which is a donor atom in the molecular structure, but having no carbonyl group or carboxyl group, and a nitrogen atom, a halogen atom, a sulfur atom or a carbon atom which is a donor atom Having none of the atoms
- Group B4 Carboxylic acids having at least one carboxyl group in the molecular structure but having no donor, nitrogen, halogen, sulfur, or carbon atoms, and having no carbonyl or hydroxyl group Complexing agent.
- Group B5 A hydroxymono- or dicarboxylic acid-based complexing agent having four or less hydroxyl groups in its molecular structure, but not containing a donor atom such as a nitrogen atom, a halogen atom, a sulfur atom, a carbon atom and a carbyl group.
- a third gist of the present invention is a method for treating the surface of a substrate using a surface treatment composition, wherein the surface treatment composition comprises an OH group directly bonded to an aromatic hydrocarbon group in a liquid medium.
- a composition comprising an organic complexing agent having the formula: and an oxidizing agent, wherein the concentration of the oxidizing agent is not less than 1 ppm by weight and not more than 3% by weight.
- a fourth gist of the present invention is that an OH group, which has a cyclic skeleton in the molecular structure as ammonia, water, and a metal adhesion inhibitor in a liquid medium, and is bonded to a carbon atom constituting the ring,
- the surface treatment of a substrate is performed using an alkaline surface treatment composition containing an organic complexing agent having at least one ⁇ -group
- the evaporated ammonia component is supplemented with an aqueous ammonia solution containing the organic complexing agent. This is a surface treatment method.
- a method for treating the surface of a substrate using a surface treatment composition wherein the surface treatment composition contains Fe, Al, Zn as a metal adhesion inhibitor in a liquid medium.
- a surface treatment method which is a composition obtained by adding high-purity ethylene diamine di-hydroxy phenyl acetic acid or an ammonium salt thereof having a content of at least one metal element of 5 ppm or less, and a high-purity ethylene diamine used therefor This is a method for purifying diorthohydroxyphenylacetic acid or its ammonium salt.
- the surface treatment composition used in the first invention is characterized in that it contains two or more specific complexing agents as metal adhesion inhibitors.
- the specific two or more complexing agents include one or more complexing agents selected from the following (Group A) forces: (Bl group), (B2 group), (B3 group), (B4 group), (B5 group), or (B6 group) Things.
- the surface treatment in the present invention is a general term for cleaning, etching, polishing, film formation and the like of a substrate, and the surface treatment composition is a general term for a surface treatment agent used for these purposes.
- the complexing agent of (Group A) is a complex having an aromatic hydrocarbon ring in the molecular structure and having at least one OH group and Z or O— group bonded to a carbon atom constituting the ring.
- Agent Specific examples of such a complexing agent include the following, but are not particularly limited thereto. Further, specific examples are shown as compounds having a ⁇ group, but also include corresponding salts such as ammonium salts and alkali metal salts thereof. The abbreviations or common names used in this specification are shown in [] after the compound name.
- Phenol cresol, ethyl phenol, t-butyl phenol, methoxy phenol, salicino phenol, phenolic phenol, amino phenol, amino cresol, amidol, p- (2-aminoethyl) phenol, salicylic acid, o-Salicylide, naphthol, naphtholsulfonic acid, 7-amino-4-hydroxy-12-naphthalenedisulfonic acid and the like.
- At least one complexing agent selected from the group (II) above is contained as a metal adhesion inhibitor.
- a complexing agent it is comprehensively determined from the level of cleanliness required for the substrate surface, the cost of the complexing agent, and the chemical stability in the surface treatment composition to be added. Which complexing agents are the best.
- the OH groups of alkylamine phenol derivatives such as ethylenediamine di-hydroxy phenyl acetic acid [EDD HA], and the OH groups of catechol and tiron are particularly useful. Phenols having two or more and derivatives thereof are excellent and preferably used.
- phenol derivatives of alkylamines such as ethylenediamine diorthohydroxyphenylacetic acid [ED DHA] are superior, and 8-quinolinol, catechol, tylon, etc. are superior in terms of production cost of complexing agents. Each of them is excellent, and is preferably used when emphasis is placed on these. Further, those having a sulfonic acid group and a carboxyl group in addition to the OH group as the complexing agent are preferable because they have both excellent metal adhesion preventing effect and chemical stability.
- complexing agents used in combination with the complexing agent of (Group A) include the following complexing agents of (Group B1) to (Group B6).
- Group B2 A complexing agent having at least one atom selected from a halogen atom, a sulfur atom and a carbon atom as a donor atom in the molecular structure.
- Group B3 Having at least one oxygen atom which is a donor atom in the molecular structure, but having no carbonyl group or carboxyl group, and a nitrogen atom, a halogen atom, a sulfur atom or a carbon atom which is a donor atom A complexing agent having no atoms.
- Group B4 Carboxylic acids having at least one carboxyl group in the molecular structure but having no donor, nitrogen, halogen, sulfur, or carbon atoms, and having no carbonyl or hydroxyl group Complexing agent.
- Group B 5 Hydroxy mono- or dicarboxylic acid-based complexing agents that have 4 or less hydroxyl groups in the molecular structure but do not contain donor, nitrogen, halogen, sulfur, and carbon atoms and carboxyl groups .
- a donor atom refers to an atom that can supply an electron necessary for coordination bond with a metal.
- the coordinating group having a nitrogen atom which is a donor atom in (Group B1) include an amino group, an imino group, a nitrile group (third nitrogen atom), a thiocyanate group, a hydroxyamino group, a hydroxyimino group, and a nitro group.
- Group, nitroso group, hydra Examples include a dino group, a hydrazono group, a hydrazo group, an azo group, an azoxy group, a diazonium group, and an azide group.
- Specific examples of complexing agents having these coordinating groups include, but are not particularly limited to, the following.
- Ethylamine isopropylamine, bieramine, getylamine, dipropynoleamine, N-methinoleethinoleamine, triethynoleamine, benzinoleamine, varinine, toluidine, ethylaniline, xylidine, thymylamine, 2,4,6-trimethylaniline, Diphenylamine, N-methyldiphenylamine, biphenylinoleamine, benzidine, chloroaniline, nitrosaniline, aminobenzene sulfonic acid, aminobenzoic acid and the like.
- Ethanolamine 2-amino-1-butanol, 2-amino-2-methyl-1-propanol, 2-amino-1-ethyl-1,3-propanediol, 2-
- Glycine Glycine, glycine ethyl ester, sarcosine, alanine, aminobutyric acid, nonorenoline, valine, isopaline, noreleucine, leucine, isoleucine, serine, L-threonine, cystine, cystine, methionine, ordinine, lysine, guanoreginine Citrulline, aspartic acid, asparagine, glutamic acid, glue Tamine,] 3-hydroxyglutamic acid, N-acetylglycine, glycylglycine, diglycinoleglycine, phenyl ⁇ alanine, tyrosine, L-thyroxine, N-phenylidaricin, N-benzoyldaricin and the like.
- DTPA ethylenediamine 2-propion diacetate
- GEDTA glycol ether diamine tetraacetic acid
- HDTA 1,6-hexamethylene diamine tetraacetic acid
- HI DA hydroxyshethyl imino diacetate
- Methyl EDTA Methyl EDTA
- pyrazonoles such as pyrazole and 5-pyrrolozone
- imidazoles such as imidazole and methylimidazole
- imidazolines and imidazolidines such as 2-imidazoline, imidazolidine and ethylene urea
- benzoimidazoles such as benzoimidazoles.
- hydropyrimidines such as piperazine, piperazines such as cinnoline and phenazin
- hydrazines and hydrazides such as azobenzene, azotoluene, methinorered, azobenzenedica ⁇ bonic acid, hydroxyazobenzene, and azoxybenzene, feninolehydrazine, ⁇ -bromopheninolehydrazine, ⁇ -nitrophenhydrhydrazine, Azo and azoxy compounds such as phenylacetohydrazide; hydrazo compounds such as hydrazobenzene and hydrazo-2-benzoic acid; oxalic bis (salicylidenehydrazide); salicylaldehyde (2-carboxyphenyl) ) Hydrazones such as hydrazone, benzaldehyde hydrazone, and acetoaldehyde phenylhydrazone; azines such as benzylideneazine; azides such as benzoyl azide; and diaZones such as benzenediaZ
- Azides such as ammonium azide and sodium azide, nitriles such as acetonitrile, amide sulfate, imido disulfate, nitride trisulfate, thiocyanic acid, and ammonium thiocyanate.
- Group B1 in terms of the effect of preventing metal adhesion when the content in the surface treatment composition is constant, particularly amino acids such as glycine, imino diacetic acid, nitric acid triacetic acid, and ethylenediamine tetraacetic acid.
- amino acids such as glycine, imino diacetic acid, nitric acid triacetic acid, and ethylenediamine tetraacetic acid.
- Iminocarboxylic acids such as [EDTA] and heterocyclic polycyclic amines such as 8-quinolinol and o-phenanthroline are excellent and preferably used.
- ( ⁇ Group 2) is a complexing agent having at least one atom selected from a halogen atom, a sulfur atom and a carbon atom as a donor atom in a molecular structure.
- Agent Specific examples of the complexing agent having such a donor atom include the following, but are not particularly limited thereto.
- the salts of complexing agents specifically shown below are alkali metal salts, ammonium salts and the like.
- Hydrofluoric acid or a salt thereof hydrochloric acid or a salt thereof, hydrogen bromide or a salt thereof, hydrogen iodide or a salt thereof, and the like.
- the formula HS-, S 2 _, S 2 0 3 2 primary, RS mono-, R- COS primary, force ⁇ or RSH having at least one group represented by R-CS S "or CS over , thiol represented by R '2 S Moshiku R 2 C S, there is selected from a sulfide or Chio carbonyl compound.
- R represents an alkyl group
- R, a is an alkyl group or an alkenyl group
- R may be linked to each other to form a ring containing a sulfur atom, specifically, hydrogen sulfide or a salt thereof, or sodium sulfide or ammonium sulfide as having an HS— or S 2 group.
- Some of the coordinating groups have NC, RNC or RCC.
- Specific examples include cyanides such as hydrogen cyanide and ammonium cyanide, isocyanides such as isocyanate, arylene and metal acetylide.
- complexing agents having a halogen as a donor atom such as hydrofluoric acid and hydrochloric acid, are particularly preferred because they are excellent in both metal adhesion preventing effect and cost. It is used well.
- the complexing agent of group (B3) is a nitrogen atom or halogen atom which has at least one oxygen atom as a donor atom in the molecular structure but has no carbonyl group or carboxyl group, and is a donor atom.
- the acids such as sulfonic acid and oxo acid shown below are described as acids, but include salts such as alkali metal salts and ammonium salts thereof.
- Saturated alcohols such as methanol, ethanol, propanol, isopropyl alcohol, butanol, pentanol, hexanol, and benzyl alcohol; unsaturated alcohols such as arylalkanol and methylvinylcarbinol; polyhydric compounds such as ethylene glycol and glycerin Alcohols, phenols such as phenol, catechol, and tyrone, and derivatives thereof.
- Aliphatic sulfonic acids such as methanesulfonic acid and ethanesulfonic acid
- aromatic sulfonic acids such as benzenedisulfonic acid, dodecylbenzenesulfonic acid, and naphthalenesulfonic acid.
- Sulfuric acid esters such as ethylsulfuric acid and dimethylsulfuric acid; carbonic acid esters such as dimethyl carbonate and difunyl carbonate; phosphoric acid esters such as trimethyl phosphate and triphenyl phosphate; trimethyl borate; Among the above (Group B3), aliphatic alcohols such as isopropyl alcohol, and oxo acids such as phosphoric acid and nitrous acid are particularly preferable because they are excellent in both metal adhesion preventing effect and cost.
- the complexing agent of group (B 4) is a compound having one or more carboxyl groups in the molecular structure but having no nitrogen atom, halogen atom, sulfur atom or carbon atom as a donor atom, and a carbonyl group. It is a carboxylic acid-based complexing agent characterized in that it does not contain hydroxyl groups. Specific examples of the complexing agent of (Group B4) include the following, but are not particularly limited thereto. Further, the carboxylic acids are exemplified as free acids, but also include salts thereof such as ammonium salts and alkali metal salts.
- Formic acid acetic acid, propionic acid, butyric acid, butyric acid, isobutyric acid, valeric acid, decanoic acid, pendecanoic acid, dodecanoic acid, stearic acid, acrylic acid, crotonic acid, oleic acid, monoclonal acetic acid, dichloroacetic acid, tricloacetic acid, fluoro Acetic acid, benzoic acid, methyl benzoic acid, black benzoic acid, sulfocarboxylic acid, phenylacetic acid, etc.
- carboxylic acids having relatively simple structures such as acetic acid and oxalic acid, that is, aliphatic saturated carboxylic acids having 2 to 3 carbon atoms, are particularly effective in preventing metal adhesion and cost. And is preferably used.
- the complexing agent (B5) has four or less hydroxyl groups in the molecular structure, but does not contain any of the donor atoms nitrogen, halogen, sulfur and carbon atoms, and carbonyl. It is a hydroxy mono- or dicarboxylic acid complexing agent.
- a donor atom refers to an atom that can supply an electron necessary for coordination bond with a metal.
- Specific examples of the complexing agent of Group B include the following: Force Not particularly limited to these.
- hydroxycarboxylic acids are exemplified as free acids, including ammonium salts and alkali metal salts thereof. Things.
- Glyceric acid which has two hydroxyl groups, such as dalicholic acid, lactic acid, 2-hydroxybutyric acid, hydroxyacrylic acid, hydroxybenzoic acid, salicylic acid, sulfosalicylic acid, etc. Examples of dihydroxystearic acid, 2,4-dihydroxybenzoic acid, protocatechuic acid, etc. Gallic acid with three hydroxyl groups.
- tetrahydroxysuccinic acid having four hydroxyl groups Such as tetrahydroxysuccinic acid having four hydroxyl groups.
- hydroxymonocarboxylic acids having 2 or less hydroxyl groups such as tartaric acid, salicylic acid, and sulfosalicylic acid, or hydroxydicarbonic acids are particularly effective in preventing metal adhesion, chemical stability, and cost. And is preferably used.
- hydroxycarboxylic acids having three or more carboxyl groups such as citric acid, do not have a sufficient metal-adhesion preventing effect
- hydroxy acids, having five or more hydroxyl groups such as dalconic acid and galactonic acid.
- Carboxylic acids are not preferred because they generally have poor chemical stability and do not provide a stable metal adhesion preventing effect.
- the position of the hydroxy group and the carboxyl group in the molecule is related to the metal adhesion preventing effect, and it is preferable that both are bonded to adjacent carbon atoms.
- the complexing agent of (B6) is a complexing agent having one or more carboxyl groups in the molecular structure, and nitrogen, halogen, sulfur and carbon which are donor atoms in the molecular structure. Does not contain any of these. Specific examples of such complex agents in the present invention include the following, but are not particularly limited thereto.
- Di- and polyaldehydes such as glyoxal, malonaldehyde, and succinaldehyde; di- and polyketones such as diacetyl, acetylacetone, acetonylacetone, and diacetylethyl; ketoaldehydes such as pyruvaldehyde and 4-oxopentanal; .
- Trobolone 6-isopropyl trobolone, etc.
- the second invention is characterized in that the metal adhesion inhibitor added to the liquid medium is ethylenediamine di-hydroxyhydroxyacetic acid [ED DHA], 2-hydroxy-1- (2-hydroxy-15-methylphenylazo) 1,4-naphthalenesulfonic acid [carmagite] 4,4'-bis (3,4-dihydroxyphenylazo) 1,2,2,1-stilbene diammonium disulfonic acid [stilbazo], pyrocatechol violet [PV], o , o 'dihydroxy azobenzene, 1,2-dihydroxy-1-5-2,1,2-azozonaphthalene-1-sulfonic acid [eriochrome black T] or N, N-bis (2-hydroxybenzinole )
- ethylenediamine-N, N-diacetate [HBED] even if only one complexing agent is used, it has a good effect of preventing metal adhesion.
- the amount of the complexing agent added as a metal adhesion inhibitor varies depending on the type and amount of metal impurities in the liquid to be prevented from adhesion and the level of cleanliness required on the substrate surface. no but as the total amount of surface treatment composition, usually 1 0 one 7-2 wt%, preferably from 1 0 one from 6 to 0.5 wt%, particularly preferably 1 0 _ 6 to 0.1 by weight %. If the amount is too small, the effect of preventing metal adhesion, which is the object of the present invention, is difficult to be exhibited. This is not preferred because the risk of adhering a certain complexing agent increases.
- the liquid medium serving as the main component in the surface treatment composition of the present invention is usually an aqueous solution in which water, electrolytic ion water, an acid, an alkali, an oxidizing agent, a reducing agent, a surfactant, or the like is dissolved, or an organic solution.
- a solvent, or a mixed solution thereof is used.
- metal impurities in the solution are extremely easy to adhere to the substrate surface. It is preferable to use a complexing agent added.
- an alkaline aqueous solution is a general term for an aqueous solution whose pH is higher than 7.
- the alkaline component of this aqueous solution is not particularly limited, but a typical one is ammonia.
- hydroxides of alkaline metal or alkaline earth metal such as sodium hydroxide, potassium hydroxide and calcium hydroxide
- alkaline salts such as sodium hydrogen carbonate and ammonium hydrogen carbonate, or tetramethyl ammonium hydroxide (TMAM)
- TMAM tetramethyl ammonium hydroxide
- quaternary ammonium salt hydroxides such as trimethyl-2-hydroxyethylammonium hydroxide, and choline are also used. Two or more of these alkalis may be added without any problem.
- the alkali is used so that the total concentration in the whole solution of the surface treatment composition is 0.01 to 30% by weight.
- Alkaline electrolytic ionic water obtained by electrolysis of water is also preferably used.
- an oxidizing agent such as hydrogen peroxide may be appropriately added to such an alkaline aqueous solution.
- an oxidizing agent such as hydrogen peroxide may be appropriately added to such an alkaline aqueous solution.
- hydrogen peroxide is added to the alkaline aqueous solution of the present invention, it is usually used so that the concentration of hydrogen peroxide in the entire solution of the surface treatment composition falls within the range of 0.01 to 30% by weight.
- the concentration of the oxidizing agent is preferably not less than 1 weight ppm and not more than 3% by weight. If the amount of the oxidizing agent is too large, the complexing agent is decomposed, and the stability of the surface treatment composition may be deteriorated.
- the concentration of hydrogen peroxide is preferably at least 100 wt ppm and not more than 3 wt%.
- the method of blending the complexing agent according to the present invention into the surface treatment composition is not particularly limited.
- the components for example, ammonia water, hydrogen peroxide solution, water, etc.
- any one component or a plurality of components may be mixed in advance, and then these components may be mixed and used.
- the components may be mixed and then added to the mixture before use.
- acids such as phenols, amino acids and iminocarboxylic acids are added and contained, they may be added in the form of an acid or in the form of a salt such as an ammonium salt. ,.
- the surface treatment composition of the present invention is used for cleaning, etching, polishing, film formation, etc. of a substrate such as a semiconductor, a metal, a glass, a ceramic, a plastic, a magnetic material, or a superconductor, in which metal impurity contamination of the substrate becomes a problem.
- a substrate such as a semiconductor, a metal, a glass, a ceramic, a plastic, a magnetic material, or a superconductor, in which metal impurity contamination of the substrate becomes a problem.
- the present invention is suitably used for cleaning and etching of a semiconductor substrate requiring a highly clean substrate surface.
- a cleaning liquid composed of [ammonia + hydrogen peroxide + water] particularly among semiconductor substrate cleaning, the problem of metal impurities adhering to the substrate, which was a problem of the cleaning method, is improved. Accordingly, the cleaning achieves a high-purity substrate surface free from metal contamination as well as particles and organic contamination, which is extremely preferable.
- the surface treatment composition of the present invention exerts a very good effect in preventing metal impurities from adhering, but some sort of addition between the specific two or more complexing agents to be added and the metal ions. It is presumed that a mixing effect occurs and a stable water-soluble metal complex is formed extremely effectively.
- the surface treatment composition of the present invention When the surface treatment composition of the present invention is used as a cleaning liquid for cleaning a substrate, a method of bringing the liquid into direct contact with the substrate is used.
- cleaning methods include dip-type cleaning in which a cleaning tank is filled with a cleaning liquid and immersing the substrate, spray-type cleaning in which the liquid is sprayed onto the substrate and cleaning, and a spin-type cleaning in which the cleaning liquid is dropped onto the substrate and rotated at a high speed. Cleaning and the like.
- an appropriate one is adopted according to the purpose, but dip-type cleaning is preferably used.
- the washing time is appropriately long, but is preferably 10 seconds to 30 minutes, more preferably 30 seconds to 15 minutes.
- washing may be performed at room temperature, but may be performed with heating for the purpose of improving the washing effect. Also, when cleaning, it is possible to use together with the cleaning method using physical force. No. Examples of such a cleaning method using physical force include ultrasonic cleaning and mechanical cleaning using a cleaning brush.
- the complexing agent when preparing the surface treatment composition, may be a source of metal contamination.
- the complexing agent contains metal impurities such as Fe in an amount of about several to several thousand ppm in ordinary reagents. These initially exist in the form of a stable complex with the complexing agent, but after long-term use as a surface treatment solution, the complexing agent decomposes, releasing the metal and leaving the surface of the substrate. They will adhere. Therefore, it is desirable that the complexing agent used has a content of at least one metal element of Fe, Al, and Zn in the complexing agent of 5 ppm or less, and particularly, an Fe content of 5 ppm or less.
- the content of A 1 or less be 2 ppm or less, and the content of Zn be 2 ppm or less.
- the complexing agent is EDD HA
- EDDHA or a salt thereof is dissolved in an acidic or alkaline solution, and then insoluble impurities are removed by filtration, and the solution is re-used. After neutralization, crystals of EDD HA are precipitated, and the crystals are purified by separating from the liquid.
- Aqueous ammonia (30% by weight), aqueous hydrogen peroxide (31% by weight) and water were mixed at a volume ratio of 0.25: 1: 5, and the resulting aqueous solvent was mixed with a metal adhering inhibitor as shown in Table 1.
- a predetermined amount of the complex agent shown in 1 was added to prepare a surface treatment composition.
- the amount of the complexing agent added was shown in% by weight based on the aqueous solvent, and the name was shown by the above-mentioned common name.
- a solution obtained by adding ethylenediaminetetrakis (methylphosphonic acid) [commonly known as EDTPO] as a complexing agent described in JP-A-5-275405 to the aqueous solvent A solution prepared by adding oxalic bis (salicylidene hydrazide), which is a complexing agent described in JP-A-6-163495, and a solution prepared by adding no complexing agent at all were also prepared. Al and Fe are each added as chlorides to the surface treatment solution thus prepared, and then a clean silicon wafer (p-type, CZ, plane orientation (100)) is immersed for 10 minutes. did.
- Examples 9 to 23 (combination examples of (Group A) and (Group B1)) and Comparative Examples 4 to 15 Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight /.) And water were added at 0. The mixture was mixed at a volume ratio of 25: 1: 5, and the obtained mixed solution was used as an aqueous solvent as a main component.
- the aqueous solvent was used as a metal adhesion inhibitor in the form of two or more specific compounds of the present invention described in Table 11
- Each of A predetermined amount of a seed complexing agent was added to prepare a surface treatment composition of the present invention.
- the aqueous solvent was prepared by adding one of the complexing agents used in the examples to the aqueous solvent.
- A1 and Fe were each added to the surface treatment solution thus prepared in the form of chloride by 10 ppb, and then a clean silicon wafer (p-type, CZ, plane orientation (100)) was immersed for 10 minutes. did. During the immersion, the temperature of the surface treatment solution was maintained at 40 to 50 ° C by heating. The silicon wafer after immersion was overflow-rinsed with ultrapure water for 10 minutes, dried by nitrogen blowing, and A1 and Fe attached to the wafer surface were quantified. A 1 deposited on a silicon wafer ⁇ Pi F e hydrofluoric acid 0. 1% by weight and hydrogen peroxide 1 wt 0 /. And the amount of the metal was measured by a flameless atomic absorption method, and converted into a substrate surface concentration (atoms / cm 2 ). Table 12 shows the results.
- Examples 24 to 28 (combination of (Group II) and (Group B2)) and Comparative Example 16
- the procedure was the same as Example 9 except that the complexing agent was changed to that shown in Table 13.
- Table 1 shows the results.
- Example 9 was repeated except that the complexing agent was changed to that shown in Table 1. The results are shown in Table 4.
- Example 9 was repeated except that the complexing agent was changed to that shown in Table 1. The results are shown in Table 7 You. Table
- Ammonia water (30 wt%), hydrogen peroxide solution (31 wt./.) And water were mixed in a volume ratio X: Y: Z in a system to which 100 ppm of EDDHA was added as a metal adhesion inhibitor.
- the mixed solution was used as an aqueous solvent as a main component, and the temperature was maintained at 40 to 50 ° C to obtain a surface treatment composition.
- Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight) and water are mixed in a volume ratio of X: Y: Z in a system to which 100 ppm of Tylon is added as a metal adhesion inhibitor.
- the resulting mixed solution was used as an aqueous solvent as a main component, and the temperature was kept at 40 to 50 ° C to obtain a surface treatment composition.
- Al and Fe were added as chlorides, each in lppb, and then a clean silicon wafer (p-type, CZ, surface orientation (100)) was removed. Dipped for 0 minutes.
- the immersed wafer was overflow rinsed with ultrapure water for 10 minutes, then dried by nitrogen blow, and A 1 and Fe attached to the wafer surface were quantified.
- a 1 and Fe adhering to the silicon wafer are recovered with a mixture of 0.1% by weight of hydrofluoric acid and 1% by weight of hydrogen peroxide, the amount of the metal is measured by a flameless atomic absorption method, and the substrate surface concentration ( atoms in 2 ). Table 9 shows the results. Table 9
- Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight) and water are mixed in a ratio of 1: 1: 10, and the resulting mixed solution is used as the main aqueous solvent. Then, a predetermined amount of the complexing agent shown in Table 11 of the present invention was added as a metal adhesion inhibitor to prepare a surface treatment composition of the present invention. In addition, for comparison, a solution in which no complexing agent was added to the aqueous solvent was also prepared.
- Example 63 EDDHA (0.01) o-Phantant> phosphorus (0.005) 9 9 ⁇ 4
- Example 64 EDDHA (0.01) Acetic acid (0.05) ⁇ 9 ⁇ 6 ⁇ 4 Comparative Example 29 None 790 990 120 As shown in Table 11, when the substrate is treated with the surface treatment liquid of the present invention, the adhesion of the metal from the liquid to the substrate surface is prevented, and the force ⁇ If the substrate surface is contaminated with metal, the metal contamination can also be removed.
- Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight) and water were mixed at a volume ratio of 1: 1: 10, and the resulting aqueous solvent was used as a metal adhesion inhibitor.
- the amount of the complexing agent added was represented by the weight ratio (ppm) to the aqueous solvent. Further, for comparison, an aqueous solvent in which no complexing agent was added at all was also prepared.
- the total volume of the surface treatment composition was 2.8 liters and was placed in a 6 liter open lid quartz vessel. The temperature of the solution was maintained at 40 to 50 ° C by heating.
- the surface treatment solution thus adjusted was allowed to stand for a certain period of time shown in Table 11 while being kept at 40 to 50 ° C.
- the evaporated ammonia was supplemented with aqueous ammonia (30 wt./.) To which a predetermined amount of the complexing agent shown in Table 1-12 was added.
- the amount of the complexing agent added was represented by the weight ratio (pm) to the aqueous ammonia solution.
- the amount of the replenished aqueous ammonia solution was 76 ml per hour.
- A1 and Fe were added in 1 ppb increments, and a clean silicon wafer (p-type, CZ, plane orientation (100)) was immersed for 10 minutes.
- Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight) and water are mixed in a volume ratio of 1: 2: 100, and the resulting aqueous solvent is used as a metal adhesion preventing and removing agent.
- a predetermined amount of the two complexing agents listed in Table 14 was added to prepare the surface treatment composition of the present invention. This solution was kept at 35 to 45 ° C. and allowed to stand for 4 hours or 8 hours, and then the metal adhesion to the substrate surface was evaluated in the same manner as in Example 65. At the time of standing, the evaporated ammonia component was supplemented with aqueous ammonia (30% by weight) to which two kinds of complexing agents shown in Table 14 were added in predetermined amounts.
- Ammonia water (30% by weight), hydrogen peroxide solution (31% by weight) and water are mixed in a volume ratio of 1: 2: 100, and the resulting aqueous solvent is used as a metal adhesion preventing and removing agent.
- a predetermined amount of the two complexing agents described in Table 15 was added to adjust the surface treatment composition of the present invention. did. This liquid was kept at 60 to 70 ° C. and allowed to stand for 4 hours, and then the adhesion of metal to the substrate surface was evaluated in the same manner as in Example 63. At the time of standing, the evaporated ammonia content was replenished with aqueous ammonia (30% by weight) prepared by adding two kinds of complexing agents shown in Table 15 in a predetermined amount.
- EDDHA Commercial EDDHA (US, SIGMA Chemical COMPANY Ltd., CATALOG #: E4135, Lot No.85H5041 ) to the aqueous solution of nitric acid 7 weight 0/0 E DDHA.lg diary 10ml was added to dissolve EDDHA.
- This EDDHA nitric acid aqueous solution was filtered through a Teflon filter (made of PTFE) having an opening diameter of 0.1 / zm, thereby separating insoluble impurities by filtration.
- a 6% by weight aqueous ammonia solution was added to the obtained filtrate until the pH of the solution became 8, to precipitate EDDHA crystals. This was filtered through a filter having an opening diameter to obtain EDDHA crystals. Further, the obtained crystals were washed on a filter with pure water.
- the purified EDDHA crystals are dried in a dryer. After drying, high-purity EDDHA of the present invention was obtained.
- the amount of metal impurities in EDDHA was analyzed after wet decomposition by the method described below. After sampling 1 g of EDDHA in the washed quartz flask, 5 ml of sulfuric acid was added, and after heating and carbonization, nitric acid and hydrogen peroxide solution were added, and oxidative decomposition was performed while heating. After heating to evaporate other than sulfuric acid, it was made up to 5 Oml with pure water. After the samples were wet-decomposed in this way, the amount of metal impurities was analyzed by the ICP-AES method and the atomic absorption method.
- Table 16 shows the analytical values of high-purity EDDHA obtained by the above operation.
- the analytical values of unpurified EDDHA SIGMA CHE ICA1 COMPANY, USA, Lot No. 85H5041: Comparative Example 39, Lot No. 117F50221: Comparative Example 40) are also shown in Table-16.
- Example 74 the conventional commercially available EDDHA contains several to several thousand pm of metal impurities, respectively.However, the purification method of the present invention can reduce this to 5 ppm or less. It is possible.
- Example 74 the purification method of the present invention can reduce this to 5 ppm or less. It is possible.
- EDDHA Commercially available EDDHA (US, manufactured by SIGMA CHE ICA1 COMPANY, CATALOG #: E4135, Lot No. 117F50221: Comparative Example 40) was added with 3% by weight of an aqueous ammonia solution to 1 g of EDD HA, and 1 Oml was added to dissolve the EDDHA.
- This EDDHA nitric acid aqueous solution was filtered through a Teflon filter (PTFE) having an opening diameter of 0.1 / xm to separate insoluble impurities by filtration.
- PTFE Teflon filter
- High purity EDDHA obtained in Example 74 was dissolved 240 p pm added to a high purity aqueous ammonia solution (30 wt 0/0) to give the EDDHA added aqueous ammonia solution of the present invention.
- Table 18 shows the results of analyzing metal impurities in the obtained aqueous solution of EDDHA-added ammonium.
- EDDHA a predetermined amount of EDDHA was added to prepare the surface treatment composition of the present invention.
- the EDDHA used was the high-purity EDDHA obtained in Example 71.
- a sample using conventional commercially available EDDHA SIGMA CHEMICA 1 COMPANY, USA, CATALOG #: E4135, Lot No. 117F50221: Comparative Example 40 was also adjusted. Is represented by the weight ratio (ppm) to the aqueous solvent.
- the aqueous solvent without addition of EDDHA was also prepared.
- the total volume of the surface treatment composition was 2.8 liters and was placed in a 6 liter open lid quartz vessel. The temperature of the solution was maintained at 55 to 65 ° C by heating.
- the surface treatment solution thus adjusted was left for a fixed time while being kept at 55 to 65 ° C. After leaving for a certain period of time, add A1 and Fe in 1 ppb increments to
- the ED DHA the high-purity ED DHA obtained in Example 73 was used.
- a sample using a conventional EDD HA manufactured by SIGMA CHEMICAl COMPANY, USA, CATALOG E4135, Lot No. 117F50221: Comparative Example 40 was also prepared.
- the surface treatment composition of the present invention contains a specific complexing agent as a metal adhesion inhibitor, thereby preventing contamination of metal impurities such as A1, Fe, etc. from the surface treatment composition to the substrate surface, and is stable. A very clean substrate surface can be achieved.
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Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96925074A EP0789071B1 (en) | 1995-07-27 | 1996-07-25 | Method for treating surface of substrate and surface treatment composition therefor |
DE69636618T DE69636618T2 (de) | 1995-07-27 | 1996-07-25 | Verfahren zur behandlung einer substratoberfläche und behandlungsmittel hierfür |
US08/809,147 US5885362A (en) | 1995-07-27 | 1996-07-25 | Method for treating surface of substrate |
Applications Claiming Priority (16)
Application Number | Priority Date | Filing Date | Title |
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JP7/191504 | 1995-07-27 | ||
JP19150495A JP3198878B2 (ja) | 1995-07-27 | 1995-07-27 | 表面処理組成物及びそれを用いた基体の表面処理方法 |
JP7/230700 | 1995-08-17 | ||
JP23070095 | 1995-08-17 | ||
JP24385995A JPH0967688A (ja) | 1995-08-30 | 1995-08-30 | 基体の表面処理組成物及び表面処理方法 |
JP7/243859 | 1995-08-30 | ||
JP25723795A JPH0982676A (ja) | 1995-09-11 | 1995-09-11 | 表面処理組成物及びそれを用いた基体の表面処理方法 |
JP7/257237 | 1995-09-11 | ||
JP25723895A JPH0982677A (ja) | 1995-09-11 | 1995-09-11 | 表面処理組成物及びそれを使用する表面処理方法 |
JP7/257238 | 1995-09-11 | ||
JP7/279913 | 1995-10-04 | ||
JP7/279912 | 1995-10-04 | ||
JP27991295 | 1995-10-04 | ||
JP27991395A JPH09100494A (ja) | 1995-10-04 | 1995-10-04 | 表面処理組成物及び基体の表面処理方法 |
JP05608796A JP3303655B2 (ja) | 1996-03-13 | 1996-03-13 | 表面処理組成物及び表面処理方法 |
JP8/56087 | 1996-03-13 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US08/809,147 A-371-Of-International US5885362A (en) | 1995-07-27 | 1996-07-25 | Method for treating surface of substrate |
US09/218,000 Division US6228823B1 (en) | 1995-07-27 | 1998-12-22 | Method for treating surface of substrate and surface treatment composition used for the same |
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WO1997005228A1 true WO1997005228A1 (fr) | 1997-02-13 |
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PCT/JP1996/002077 WO1997005228A1 (fr) | 1995-07-27 | 1996-07-25 | Procede de traitement de la surface d'un substrat et composition de traitement de surface prevue a cet effet |
Country Status (5)
Country | Link |
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US (3) | US5885362A (ja) |
EP (1) | EP0789071B1 (ja) |
KR (1) | KR100429440B1 (ja) |
DE (1) | DE69636618T2 (ja) |
WO (1) | WO1997005228A1 (ja) |
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WO1998028395A1 (en) * | 1996-12-24 | 1998-07-02 | Advanced Chemical Systems International, Inc. | Formulations including a 1,3-dicarbonyl compound chelating agent for stripping residues from semiconductor substrates |
US6841525B2 (en) | 1997-03-03 | 2005-01-11 | Micron Technology, Inc. | Dilute cleaning composition and method for using same |
US6313048B1 (en) | 1997-03-03 | 2001-11-06 | Micron Technology, Inc. | Dilute cleaning composition and method for using same |
US6384001B2 (en) * | 1997-03-03 | 2002-05-07 | Micron Technology, Inc. | Dilute cleaning composition |
US6136767A (en) * | 1997-03-03 | 2000-10-24 | Micron Technology, Inc. | Dilute composition cleaning method |
US6596647B2 (en) | 1997-03-03 | 2003-07-22 | Micron Technology, Inc. | Dilute cleaning composition and method for using the same |
CN1320165C (zh) * | 1997-11-28 | 2007-06-06 | 恩益禧电子股份有限公司 | 清洗衬底的方法 |
WO2000023528A1 (fr) * | 1998-10-19 | 2000-04-27 | Toto Ltd. | Materiau resistant aux salissures, procede et dispositif de production et composition de revetement |
US7067466B2 (en) | 2000-05-31 | 2006-06-27 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabrication |
US7087561B2 (en) | 2000-05-31 | 2006-08-08 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabrication |
US6486108B1 (en) | 2000-05-31 | 2002-11-26 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabrication |
US7135444B2 (en) | 2000-05-31 | 2006-11-14 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabrication |
US6831047B2 (en) | 2000-05-31 | 2004-12-14 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabrication |
US7067465B2 (en) | 2000-05-31 | 2006-06-27 | Micron Technology, Inc. | Cleaning composition useful in semiconductor integrated circuit fabricating |
US7671001B2 (en) | 2003-10-29 | 2010-03-02 | Mallinckrodt Baker, Inc. | Alkaline, post plasma etch/ash residue removers and photoresist stripping compositions containing metal-halide corrosion inhibitors |
US8057738B2 (en) | 2004-01-09 | 2011-11-15 | Water Conservation Technology International, Inc. | Cooling water scale inhibition method |
JP2008532329A (ja) * | 2005-03-07 | 2008-08-14 | チェイル インダストリーズ インコーポレイテッド | シリコンウエハの表面品質を改善する研磨用スラリー組成物、及びそれを用いたシリコンウエハの研磨方法 |
US7708939B2 (en) | 2007-04-24 | 2010-05-04 | Water Conservation Technology International, Inc. | Cooling water corrosion inhibition method |
JP2016138282A (ja) * | 2007-05-17 | 2016-08-04 | アドバンスド テクノロジー マテリアルズ,インコーポレイテッド | Cmp後洗浄配合物用の新規な酸化防止剤 |
Also Published As
Publication number | Publication date |
---|---|
US20020045556A1 (en) | 2002-04-18 |
EP0789071B1 (en) | 2006-10-11 |
US6228823B1 (en) | 2001-05-08 |
KR100429440B1 (ko) | 2004-07-15 |
EP0789071A1 (en) | 1997-08-13 |
DE69636618T2 (de) | 2007-08-30 |
DE69636618D1 (de) | 2006-11-23 |
US5885362A (en) | 1999-03-23 |
EP0789071A4 (en) | 2004-07-28 |
US6498132B2 (en) | 2002-12-24 |
KR970706383A (ko) | 1997-11-03 |
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