JP2015510042A - コバルト合金無電解めっき用アルカリ性めっき浴 - Google Patents
コバルト合金無電解めっき用アルカリ性めっき浴 Download PDFInfo
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- JP2015510042A JP2015510042A JP2014561331A JP2014561331A JP2015510042A JP 2015510042 A JP2015510042 A JP 2015510042A JP 2014561331 A JP2014561331 A JP 2014561331A JP 2014561331 A JP2014561331 A JP 2014561331A JP 2015510042 A JP2015510042 A JP 2015510042A
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- Prior art keywords
- plating bath
- aqueous alkaline
- range
- cobalt
- bath composition
- Prior art date
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- Granted
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- 238000007747 plating Methods 0.000 title claims abstract description 70
- 229910000531 Co alloy Inorganic materials 0.000 title claims abstract description 51
- 238000007772 electroless plating Methods 0.000 title claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 6
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- 150000002500 ions Chemical class 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 claims description 14
- -1 hypophosphite ions Chemical class 0.000 claims description 14
- 239000008139 complexing agent Substances 0.000 claims description 13
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910000085 borane Inorganic materials 0.000 claims description 8
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 8
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052708 sodium Inorganic materials 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- GQZXNSPRSGFJLY-UHFFFAOYSA-N hydroxyphosphanone Chemical group OP=O GQZXNSPRSGFJLY-UHFFFAOYSA-N 0.000 claims description 2
- 229940005631 hypophosphite ion Drugs 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims 1
- 230000004888 barrier function Effects 0.000 abstract description 9
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 13
- 239000000956 alloy Substances 0.000 description 13
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000000151 deposition Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 229910052763 palladium Inorganic materials 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 239000002738 chelating agent Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229910001096 P alloy Inorganic materials 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000000536 complexating effect Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- QNAYBMKLOCPYGJ-UHFFFAOYSA-N Alanine Chemical compound CC([NH3+])C([O-])=O QNAYBMKLOCPYGJ-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- RJTANRZEWTUVMA-UHFFFAOYSA-N boron;n-methylmethanamine Chemical compound [B].CNC RJTANRZEWTUVMA-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229960002449 glycine Drugs 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 150000002763 monocarboxylic acids Chemical class 0.000 description 2
- 239000006174 pH buffer Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 150000000000 tetracarboxylic acids Chemical class 0.000 description 2
- 150000003628 tricarboxylic acids Chemical class 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- HOZBSSWDEKVXNO-DKWTVANSSA-N 2-aminobutanedioic acid;(2s)-2-aminobutanedioic acid Chemical compound OC(=O)C(N)CC(O)=O.OC(=O)[C@@H](N)CC(O)=O HOZBSSWDEKVXNO-DKWTVANSSA-N 0.000 description 1
- ULHLNVIDIVAORK-UHFFFAOYSA-N 2-hydroxybutanedioic acid Chemical compound OC(=O)C(O)CC(O)=O.OC(=O)C(O)CC(O)=O ULHLNVIDIVAORK-UHFFFAOYSA-N 0.000 description 1
- OORRCVPWRPVJEK-UHFFFAOYSA-N 2-oxidanylethanoic acid Chemical compound OCC(O)=O.OCC(O)=O OORRCVPWRPVJEK-UHFFFAOYSA-N 0.000 description 1
- FZIPCQLKPTZZIM-UHFFFAOYSA-N 2-oxidanylpropane-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O FZIPCQLKPTZZIM-UHFFFAOYSA-N 0.000 description 1
- KVZLHPXEUGJPAH-UHFFFAOYSA-N 2-oxidanylpropanoic acid Chemical compound CC(O)C(O)=O.CC(O)C(O)=O KVZLHPXEUGJPAH-UHFFFAOYSA-N 0.000 description 1
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
- 229910017262 Mo—B Inorganic materials 0.000 description 1
- 229910004803 Na2 WO4.2H2 O Inorganic materials 0.000 description 1
- 229910004616 Na2MoO4.2H2 O Inorganic materials 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
- 229910018536 Ni—P Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 235000004279 alanine Nutrition 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- GJYJYFHBOBUTBY-UHFFFAOYSA-N alpha-camphorene Chemical compound CC(C)=CCCC(=C)C1CCC(CCC=C(C)C)=CC1 GJYJYFHBOBUTBY-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000013905 glycine and its sodium salt Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- NWDRUZRGKVVHMP-UHFFFAOYSA-N n,n-diethylprop-1-yn-1-amine;sulfuric acid Chemical compound OS([O-])(=O)=O.CC[NH+](CC)C#CC NWDRUZRGKVVHMP-UHFFFAOYSA-N 0.000 description 1
- BEVGWNKCJKXLQC-UHFFFAOYSA-N n-methylmethanamine;hydrate Chemical compound [OH-].C[NH2+]C BEVGWNKCJKXLQC-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000002940 palladium Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000012688 phosphorus precursor Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 229910001380 potassium hypophosphite Inorganic materials 0.000 description 1
- CRGPNLUFHHUKCM-UHFFFAOYSA-M potassium phosphinate Chemical compound [K+].[O-]P=O CRGPNLUFHHUKCM-UHFFFAOYSA-M 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- JKANAVGODYYCQF-UHFFFAOYSA-N prop-2-yn-1-amine Chemical compound NCC#C JKANAVGODYYCQF-UHFFFAOYSA-N 0.000 description 1
- HJSRRUNWOFLQRG-UHFFFAOYSA-N propanedioic acid Chemical compound OC(=O)CC(O)=O.OC(=O)CC(O)=O HJSRRUNWOFLQRG-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- KOUDKOMXLMXFKX-UHFFFAOYSA-N sodium oxido(oxo)phosphanium hydrate Chemical compound O.[Na+].[O-][PH+]=O KOUDKOMXLMXFKX-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000008054 sulfonate salts Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
- C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
Description
(i)コバルトイオン源、
(ii)Mイオン源、
(iii)少なくとも1種の錯化剤、
(iv)次亜リン酸イオン及びボラン系還元剤からなる群から選択された少なくとも1種の還元剤、及び
(v)式(1):
Xは、O、及びNR4から選択されており、
nは、好ましくは1〜6、さらに好ましくは1〜4の範囲であり、
mは、好ましくは1〜8、さらに好ましくは1〜4の範囲であり;
R1、R2、R3及びR4は、無関係に、水素、及びC1〜C4アルキルから選択されており;
Yは、SO3R5、CO2R5、及びPO3R5 2から選択されており、
R5は、水素、ナトリウム、カリウム、及びアンモニウムから選択されている]
による安定剤
を含有していることを特徴とする、水性アルカリ性めっき浴組成物により解決される。
本発明の水性アルカリ性めっき浴は、水溶性コバルト塩をコバルトイオン源として含有している。好適なコバルトイオン源は、例えばCoCl2、及びCoSO4、並びにそのそれぞれの水和物、例えばCoSO4・7H2Oである。
Xは、O、及びNR4から選択されており、
nは、好ましくは1〜6、さらに好ましくは1〜4の範囲であり、
mは、好ましくは1〜8、さらに好ましくは1〜4の範囲であり;
R1、R2、R3及びR4は、無関係に、水素、及びC1〜C4アルキルから選択されており;
Yは、SO3R5、CO2R5、及びPO3R5 2から選択されており、
R5は、水素、ナトリウム、カリウム、及びアンモニウムから選択されている]
による化合物から選択されている。
3−(プロプ−2−イニルオキシ)−プロピル−1−スルホン酸ナトリウム塩(式(1)による化合物であり、ここで、n=3、m=3、R1、R2、及びR3=H、X=O、及びY=スルホネート、R4=ナトリウムである)の調製:
水素化ナトリウム1.997g(49.9mmol)を、アルゴン下にTHF70ml中に懸濁させた。この反応混合物に、プロプ−2−イン−1−オール2.830g(49.9mmol)を周囲温度で少量ずつ添加した。
3−(プロプ−2−イニルアミノ)−プロピル−1−スルホン酸ナトリウム塩(式(1)による化合物であり、ここで、n=3、m=3、R1、R2、及びR3=H、X=NH、及びY=SO3R5、R5=ナトリウムである)の調製:
プロプ−2−イン−1−アミン4g(71.2mmol)をTHF75ml中に溶解させ、0℃に冷却した。この混合物に、THF25ml中に溶解させた1,2−オキサチオラン2,2−ジオキシド8.87g(71.2mmol)を、0℃〜5℃で少量ずつ添加した。添加後、この反応混合物を室温に加熱し、12時間撹拌した。生じるベージュ色の結晶を濾過し、THF10ml及びエタノール10mlで洗浄した。固形物を真空下で乾燥させた。
当該のめっき浴250mlを、500mlガラスビーカー内で撹拌下に80±1℃に加熱した。次いで、パラジウム試験溶液(脱イオン水中のパラジウムイオン20mg/l)1mlを、このめっき浴に30秒毎に添加した。めっき浴の望ましくない分解を示す、気泡を伴った灰色の沈殿物がこのめっき浴中に生じたら、この試験を終了する。
CoSO4・7H2O 32.9g/l 0.1mol/l
Na2WO4・2H2O 32.9g/l 0.1mol/l
クエン酸三ナトリウム二水和物 58.8g/l 0.15mol/l
次亜リン酸ナトリウム一水和物 30g/l 0.22mol/l
いかなる安定剤をも含有しない水性めっき浴原液の安定性指数は6である。
鉛イオン0.4mg/lを安定剤としてめっき浴原液に添加した。鉛イオンは、無電解めっき浴において用いられる典型的な安定剤のうちの一つである。
調製例1から得られた3−(プロプ−2−イニルオキシ)−プロピル−1−スルホン酸ナトリウム塩140mg/lを安定剤として添加した。
(調製例2から得られた)3−(プロプ−2−イニルアミノ)−プロピル−1−スルホン酸ナトリウム塩50mg/lを安定剤として添加した。
Claims (9)
- 三元コバルト合金及び四元コバルト合金Co−M−P、Co−M−B、及びCo−M−B−Pの無電解めっき用の水性アルカリ性めっき浴組成物であって、ここで、Mは、Mn、Zr、Re、Mo、Ta及びWからなる群から選択されているものとする水性アルカリ性めっき浴組成物において、このめっき浴が、以下のもの:
(i)コバルトイオン源、
(ii)Mイオン源、
(iii)カルボン酸、ヒドロキシカルボン酸、アミノカルボン酸、及び前記のものの塩を含む群から選択された少なくとも1種の錯化剤であって、ここで、この少なくとも1種の錯化剤の濃度は0.01〜0.3mol/lの範囲であるものとする、
(iv)次亜リン酸イオン、ボラン系還元剤、及びそれらの混合物からなる群から選択された少なくとも1種の還元剤、及び
(v)式(1):
Xは、O、及びNR4から選択されており、
nは、1〜6の範囲であり、
mは、1〜8の範囲であり;
R1、R2、R3及びR4は、無関係に、水素、及びC1〜C4アルキルから選択されており;
Yは、SO3R5、CO2R5、及びPO3R5 2から選択されており、
R5は、水素、ナトリウム、カリウム、及びアンモニウムから選択されている]
による安定剤であって、ここで、この式(1)による安定剤の濃度は0.05〜5.0mmol/lの範囲であるものとする、
を含有していることを特徴とする、水性アルカリ性めっき浴組成物。 - YがSO3R5であり、R5が水素、ナトリウム、カリウム及びアンモニウムから選択されている、請求項1に記載の水性アルカリ性めっき浴組成物。
- めっき浴が7.5〜12のpH値を有している、請求項1又は2に記載の水性アルカリ性めっき浴組成物。
- コバルトイオンの濃度が0.01〜0.2mol/lの範囲である、請求項1から3までのいずれか1項に記載の水性アルカリ性めっき浴組成物。
- Mイオンの濃度が0.01〜0.2mol/lの範囲である、請求項1から4までのいずれか1項に記載の水性アルカリ性めっき浴組成物。
- MがMo及びWからなる群から選択されている、請求項1から5までのいずれか1項に記載の水性アルカリ性めっき浴組成物。
- 少なくとも1種の還元剤の濃度が0.01〜0.5mol/lの範囲である、請求項1から6までのいずれか1項に記載の水性アルカリ性めっき浴組成物。
- 少なくとも1種の還元剤が次亜リン酸イオンである、請求項1から7までのいずれか1項に記載の水性アルカリ性めっき浴組成物。
- 三元コバルト合金及び四元コバルト合金Co−M−P、Co−M−B、及びCo−M−B−Pの無電解めっき法であって、ここで、Mは、Mn、Zr、Re、Mo、Ta及びWからなる群から選択されているものとする方法において、この方法が、以下の工程:
(i)基板を準備する工程、
(ii)請求項1から8までのいずれか1項に記載の水性アルカリ性めっき浴中に基板を浸漬させ、それにより、三元コバルト合金又は四元コバルト合金Co−M−P、Co−M−B、及びCo−M−B−Pを基板上に析出させる工程であって、ここで、Mは、Mn、Zr、Re、Mo、Ta及びWからなる群から選択されているものとする、
を、この順序で含むことを特徴とする方法。
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