WO2022162512A1 - Composition stable pour dépôt catalytique d'argent - Google Patents
Composition stable pour dépôt catalytique d'argent Download PDFInfo
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- WO2022162512A1 WO2022162512A1 PCT/IB2022/050577 IB2022050577W WO2022162512A1 WO 2022162512 A1 WO2022162512 A1 WO 2022162512A1 IB 2022050577 W IB2022050577 W IB 2022050577W WO 2022162512 A1 WO2022162512 A1 WO 2022162512A1
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- WIPO (PCT)
- Prior art keywords
- groups
- carbon atoms
- solution according
- solution
- metal salt
- Prior art date
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- 229910052709 silver Inorganic materials 0.000 title claims description 19
- 239000004332 silver Substances 0.000 title claims description 19
- 239000000203 mixture Substances 0.000 title description 14
- 230000008021 deposition Effects 0.000 title description 7
- 230000003197 catalytic effect Effects 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 48
- 150000003839 salts Chemical class 0.000 claims abstract description 38
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 33
- 239000000654 additive Substances 0.000 claims abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 20
- 230000000996 additive effect Effects 0.000 claims abstract description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 14
- 150000001345 alkine derivatives Chemical class 0.000 claims abstract description 11
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 11
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 18
- 238000001465 metallisation Methods 0.000 claims description 11
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 7
- 150000001413 amino acids Chemical class 0.000 claims description 6
- 150000001449 anionic compounds Chemical class 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 5
- 229910001412 inorganic anion Inorganic materials 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 150000001868 cobalt Chemical class 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 150000002891 organic anions Chemical class 0.000 claims 2
- 150000001879 copper Chemical class 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 abstract description 4
- 230000003019 stabilising effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 55
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 17
- 239000010410 layer Substances 0.000 description 15
- 238000000151 deposition Methods 0.000 description 9
- 239000004094 surface-active agent Substances 0.000 description 9
- 238000005234 chemical deposition Methods 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 235000001014 amino acid Nutrition 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 150000002823 nitrates Chemical class 0.000 description 3
- 239000012088 reference solution Substances 0.000 description 3
- 150000003378 silver Chemical class 0.000 description 3
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- NYPYHUZRZVSYKL-UHFFFAOYSA-N -3,5-Diiodotyrosine Natural products OC(=O)C(N)CC1=CC(I)=C(O)C(I)=C1 NYPYHUZRZVSYKL-UHFFFAOYSA-N 0.000 description 1
- NYPYHUZRZVSYKL-ZETCQYMHSA-N 3,5-diiodo-L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC(I)=C(O)C(I)=C1 NYPYHUZRZVSYKL-ZETCQYMHSA-N 0.000 description 1
- HBEMYXWYRXKRQI-UHFFFAOYSA-N 3-(8-methoxyoctoxy)propyl-methyl-bis(trimethylsilyloxy)silane Chemical compound COCCCCCCCCOCCC[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C HBEMYXWYRXKRQI-UHFFFAOYSA-N 0.000 description 1
- 238000010146 3D printing Methods 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000002355 alkine group Chemical group 0.000 description 1
- 150000001371 alpha-amino acids Chemical class 0.000 description 1
- 235000008206 alpha-amino acids Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- QDWJUBJKEHXSMT-UHFFFAOYSA-N boranylidynenickel Chemical compound [Ni]#B QDWJUBJKEHXSMT-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229960000415 diiodotyrosine Drugs 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229940094506 lauryl betaine Drugs 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical group CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 description 1
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001992 poloxamer 407 Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 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
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002987 primer (paints) Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- -1 silver nitrate AgNCh Chemical class 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 239000002888 zwitterionic surfactant 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
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
- C23C18/40—Coating with copper using reducing agents
-
- 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
- C23C18/1675—Process conditions
- C23C18/1687—Process conditions with ionic liquid
-
- 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
- C23C18/31—Coating with metals
- C23C18/42—Coating with noble metals
- C23C18/44—Coating with noble metals using reducing agents
Definitions
- the present invention relates to a composition for depositing metals, in particular silver or copper, according to a non-electrolytic and non-electrochemical process.
- the present invention relates in particular to stable compositions comprising a metal in solution, a reducing agent and one or more additives, making it possible to stabilize the composition.
- the present invention also covers a method of metal deposition, in particular a method of depositing silver under non-electrolytic conditions.
- Non-electrolytic metallic deposition is commonly used for the metallic coating of surfaces, in various applications including the decoration of surfaces, optical uses, the application of an electrically conductive layer, a primer coating between a surface and a final coating, or an over-coating such as those applied in the manufacture of printed circuits.
- a non-electrolytic metal deposit is made from one or more metal salts kept in solution and at least one suitable reducing agent making it possible to reduce the metal salt or salts in solution.
- a metallic layer thus appears on the surfaces to be coated. This is an exclusively chemical deposit which does not involve electric current or electrodes.
- an autocatalytic bath is prepared in advance and used for chemical deposition on several parts immersed in turn in the autocatalytic bath.
- silver baths are prepared from two separate baths, one comprising the silver salt and the other the reducing agent.
- the two solutions are combined at the time of deposit. They are preferably sprayed simultaneously on the surface to be coated, so that the chemical reaction takes place as much as possible on the surface.
- This method of chemical coating leads to silver coatings of low quality, in particular as regards their roughness or their homogeneity.
- the thickness of such a coating most often remains less than one micrometer.
- additives such as complexing agents, surfactants or other stabilizing elements are added thereto to maintain its stability. This is particularly the case when using cobalt salts as a reducing agent for the silver salts. In this case, the bath can be stabilized for several hours under very specific conditions. It should be noted that the additives must be specifically adapted to the reducing agent and to the possible other constituents of the solution.
- An object of the present invention is to provide a composition allowing the deposition of metal, in particular silver or copper, on surfaces under non-electrolytic and non-electrochemical conditions.
- the object here is to provide chemical deposition solutions that are stable over time, at least several days.
- the object is also to provide chemical deposition solutions, and in particular of silver, which allow uniform deposits with thicknesses of more than one micrometer, or even more than 5 to more than 10 micrometers.
- Another object of the present invention is to provide a method suitable for depositing metal, in particular silver or copper, under non-electrolytic and non-electrochemical conditions, which are less expensive than the known methods.
- the object of the proposed method is also to allow metal deposits of better quality than those currently obtained, in particular with silver salts.
- Figure 1 Schematic view of the main steps of the method according to the present invention.
- the solutions S according to the present invention contain at least one metal salt M in solution intended to be deposited on a surface P at coat with a metal layer C.
- the metal salts M include in particular the combination of inorganic anions with the metal cation. Such inorganic anions are preferably selected from sulphates, nitrates, phosphates and halides. Organic salts can optionally be considered, such as acetates.
- the solutions S according to the present invention preferably comprise metal salts M based on nitrate.
- the metal constituting the metal salt M can be selected from several elements such as copper, platinum, silver, gold and other metals, depending on the applications and the properties required.
- the metal salts M of the solutions prepared according to the present invention are based on silver or copper, more preferably based on silver.
- Metal salts such as silver nitrate AgNCh, silver sulfate Ag2S ⁇ 4, copper nitrate Cu(NOs)2 and copper sulfate CuS ⁇ 4 are advantageously used in the present solutions S.
- the concentration of metal salts M is preferably between 0.01 mole/liter and 0.5 mole/liter, preferably between 0.03 mole/liter and 0.1 mole/liter.
- the solution S according to the present invention comprises at least one reducing agent R.
- the reducing agent is a metal salt selected according to its redox potential so as to be able to reduce the metal salt M in solution.
- the reducing element in this case comprises an inorganic anion selected from sulphates, nitrates, phosphates and halides.
- the reducing agent R may for example be based on cobalt.
- the reducing agent R is a hydrated cobalt sulphate, such as COSO4-7H2O.
- the concentration of the reducing agent R is preferably higher than that of the metal salt M. It can be of the order of 2 to 10 times that of the metal salt M.
- the concentration of the reducing agent R can be for example between 0.04 mol/liter and 1 mol/liter, or between 0.08 mol/liter and 0.2 mol/liter approximately.
- the solutions S according to the present invention may comprise one or more other non-metallic salts such as sulphates or nitrates.
- they may contain ammonium sulphate SOzICNHZi in varying concentrations of between 0.1 mol/litre and 2 mol/litre.
- the solutions S according to the present invention may also comprise aqueous ammonia NH3. In variable concentrations between approximately 1 mole/litre and 5 moles/litre.
- the solutions according to the present invention may also comprise one or more amino acids.
- the solutions according to the present invention comprise one or more alpha amino acids.
- the amino acid(s) can be selected from the natural amino acids known to those skilled in the art. Alternatively or in addition, the amino acid(s) may be mono-, di- or tri-substituted by substituents selected from halogen, amino, alcohol, thiol or nitro groups.
- the solution according to the present invention comprises the diiodotyrosine of formula below:
- the total concentration of the amino acid(s) in the solution may be between about 1106 and 1104 moles per liter. It is preferably of the order of 1 to 8 10 5 moles per litre.
- the solutions S are essentially aqueous, which means that the elements in solution are dissolved in water. This does not exclude that a small proportion of an organic solvent is added.
- organic solvents include, for example, ethanol, methanol, or other more or less polar solvents.
- a stabilizing additive T is preferably selected from zwitterionic organic compounds, comprising two opposite charges.
- Zwitterionic compounds are known to those skilled in the art to contain a negative charge and a positive charge at the same time.
- Such a zwitterionic compound preferably comprises a polar part combining the two opposite charges, and an apolar part, so that it exhibits amphiphilic properties.
- the zwitterionic compounds used in the present invention therefore have surfactant properties. However, these properties are not sufficient to stabilize the solutions S of the present invention. It has in fact been observed that surfactants of the anionic or cationic type do not produce the expected effects. Neutral surfactants, without ionic charges, are also judged to be generally unsatisfactory in the case of the present solutions.
- the stabilizing additives T are zwitterionic surfactants.
- the polar part comprising the two opposite charges, is preferably of the betaine type, the structure of which corresponds to the formula F0 below:
- the stabilizing additive T according to the present invention is of formula F1:
- Ra, Rb, Rc are independently of each other a carbon chain comprising from 1 to 20 carbon atoms, saturated, unsaturated or pluri-unsaturated.
- Ra, Rb, Rc are in particular independently selected from the group consisting of an alkane, an aene, and an alkyne, which may be linear, branched or cyclic without distinction and comprising from 1 to 20 carbon atoms.
- At least one of the groups Ra, Rb, Rc denotes a methyl group and the two other groups among Ra, Rb, Rc independently denote an alkyl, akene or alkyne chain, linear, branched or cyclic, comprising from 2 to 20 carbon atoms.
- at least two of the groups Ra, Rb, Rc denote a methyl CH3 group and the third an alkyl, aene or linear, branched or cyclic alkyne chain and comprising from 2 to 20 carbon atoms .
- the three groups Ra, Rb, Rc each denote a methyl CH3 or ethyl, C2H5, preferably methyl group.
- the Rd and Re groups independently denote a hydrogen atom or a carbon chain comprising from 1 to 20 carbon atoms, saturated, unsaturated or pluri-unsaturated.
- Rd and Re are in particular independently of one another selected from the group consisting of a hydrogen atom of an alkane, an akene, and an alkyne, each of which may be linear, branched or cyclic and containing from 1 to 20 carbon atoms.
- one of the two groups Rd and Re is a hydrogen atom.
- one of the two groups Rd and Re is a hydrogen atom and the other is an alkyl, akene or alkyne group, linear, branched or cyclic and comprising from 3 to 18 atoms. carbon, preferably 4 to 10 carbon atoms.
- one or more, preferably just one, of the groups Ra, Rb and Rc denotes a linear, branched or cyclic alkyl, akene or alkyne chain and comprising from 2 to 20 carbon atoms, the others of the Ra, Rb and Rc groups being methyl or ethyl groups, and/or one of the two groups Rd and Re denotes a hydrogen atom and the other a linear, branched or cyclic and comprising from 2 to 20 carbon atoms, preferably between 3 and 18 carbon atoms or between 4 and 10 carbon atoms.
- one or more, preferably just one, of the groups Ra, Rb and Rc denotes a linear, branched or cyclic alkyl, aene or alkyne chain and comprising from 2 to 20 carbon atoms.
- the others of the Ra, Rb and Rc groups being methyl groups
- the two groups Rd and Re each denote a hydrogen atom.
- the three groups Ra, Rb and Rc each denote a methyl or ethyl group
- one of the two groups Rd and Re denotes a linear, branched or cyclic alkyl, akene or alkyne chain and comprising from 2 to 20 carbon atoms, preferably between 3 and 18 carbon atoms, or between 4 and 10 carbon atoms, the other of the two groups Rd and Re being a hydrogen atom.
- the Ra, Rb, Rc, Rd and Re groups may be independently unsubstituted or else substituted by one or more halogens, in particular by one or more fluorine atoms.
- the terms “unsubstituted” designate the corresponding groups containing exclusively carbon and hydrogen atoms.
- the term “substituted” denotes the corresponding groups in which one or more of the hydrogen atoms are replaced by said substituents.
- One or more of the Ra, Rb, Rc, Rd and Re groups may be totally substituted, in particular by fluorine atoms. According to one embodiment, at least one of the Ra, Rb, Rc, Rd and Re groups is mono-fluorinated or perfluorinated.
- a single stabilizer additive T is added to the solution S.
- two or more than two different stabilizing additives T are added to the solution S. It is understood that each of the additives T added to the solution correspond to the formula F1 described above.
- At least one of the groups Ra, Rb, Rc, Rd, and Re denotes a pelargonyl-type carbon chain with 9 atoms. of carbon, capric with 10 carbon atoms, lauryl with 12 carbon atoms, myristyl with 14 carbon atoms, palmytyl with 16 carbon atoms and stearyl with 18 carbon atoms, the others of the groups Ra, Rb and Rc each being a methyl or ethyl group and the others of the Rd and Re groups being a hydrogen atom.
- the stabilizing additive T is lauryl betaine.
- the stabilizing additive T has the following formula:
- the stabilizing additive T is a compound of formula F1', corresponding to formula F1 in which at least one of the groups Ra, Rb and Rc represents a perfluorinated alkane or a perfluorinated alkene , linear or branched, containing from 1 to 20 carbon atoms, preferably between 3 and 18 carbon atoms or between 4 and 10 carbon atoms, and the other of these groups, where appropriate, as well as the groups Rd and Re, are as defined in one or the other of the embodiments of the present description, or in which at least one of the groups Rd and Re represents a perfluorinated alkane or a perfluorinated alkene, linear or branched comprising from 1 to 20 carbon atoms, preferably between 3 and 18 carbon atoms or between 4 and 10 carbon atoms, and the other of these groups, if any, as well as the groups Ra, Rb and Rc, are as defined in either of the embodiments of this description.
- the stabilizing additive is for example of the Capstone FS® type.
- the solutions according to the present description may also comprise one or more inorganic salts of the XY type, where X denotes a cation and Y denotes an anion.
- X preferably denotes a cation selected from potassium K + , sodium Na + and ammonium NHs + .
- Y preferably denotes an anion selected from chlorine, iodine, bromine, fluorine.
- an inorganic salt such as KBr or KCl can be included in the solutions at a concentration of between about 3 millimoles and about 50 millimoles per liter, or of the order of 5 to 20 millimoles per liter.
- the inorganic salts are selected so as to accelerate the deposition of silver without altering either the quality of the deposit or the stability of the bath.
- the addition of such salts is particularly advantageous for compensating for any slowing down of the deposit due to the presence of an additive such as the stabilizing additive T.
- the solutions comprise the combination of a fluorinated T stabilizing additive such as a component of formula F1′ or a mixture of components of formula F1′, with an inorganic salt of type XY described above. -above.
- a fluorinated T stabilizing additive such as a component of formula F1′ or a mixture of components of formula F1′
- FIG. 1 schematizes the essential steps of the chemical deposition according to the present invention.
- a solution S is prepared, which comprises at least one metal salt M and at least one reducing agent R.
- the solution S further comprises at least one stabilizing additive T making it possible to maintain the solution S homogeneous for at least 24 hours, preferably several days, or even more than a week.
- stabilizing additives T selected and other parameters such as temperature and pH, solution S can be stable for several weeks.
- the metal salt(s) M, the reducing agent R and the stabilizing element(s) T are those described above.
- the components can be dissolved one by one in water to form the solution S.
- the components can individually solubilized in water so as to form intermediate solutions which are then combined to lead to the solution S.
- the solution S is stored in an open container so as to form a bath.
- the size of the container is preferably adapted to the dimensions of the surface P to be coated.
- a second metallization step E2 comprises the immersion of a surface P to be metallized in the bath of solutions S.
- the immersion can be maintained for a variable duration depending on the thickness of the desired metallized layer C. In particular, the immersion can last from a few minutes to several hours, it is typically maintained for approximately 1 hour to 3 hours.
- the thickness of the metallized layer C which is deposited on the surface P during the first hour is preferably greater than 3 micrometers, preferably greater than 5 micrometers.
- the thickness of the metal layer can be between 3 and 8 micrometers from the first hour. Alternatively or additionally, the thickness of the final metallized layer C is between approximately 3 and 12 micrometers.
- the bath temperature can be controlled during the metallization step E2. It can for example be kept constant at a value between approximately 30°C and more than 80°C. Other parameters such as the pH can be checked or adjusted. When the immersion time is deemed sufficient, or when the required thickness of the metallized layer C is reached, the surface P is extracted from the bath.
- the metallization step E2 can be repeated several times with other surfaces P to be coated.
- the method according to the present invention makes it possible in this case to operate the chemical deposition bath for a period of at least two days, preferably for a period of at most one week.
- the surfaces P to be coated can be immersed and held static in the bath for a predetermined period before being extracted. Alternatively, they can be conveyed continuously through the bath so as to stay there long enough to obtain the required metallized coating layer C.
- the metallization step E2 may further comprise a step of controlling the thickness or the quality of the coating layer obtained, so as to evaluate the performance of the solution S.
- the quality of the deposit deteriorates over -beyond a certain point, or the thickness of the deposit no longer corresponds to a range of predetermined values, it may be decided to replace the solution S with a new solution S according to step E1.
- the residence times of the surfaces P to be coated can be lengthened.
- stable means in particular that the metal salts M remain in solution and do not precipitate, or not significantly, and that the reduction reaction of the metal salt M by the reducing agent R does not occur or not significantly, so that a metal deposit can be made on a surface.
- the duration of stability of a solution comprising all the components necessary for the chemical deposition of the metal salt M can be determined, for example, by immersing a surface to be metallized therein at increasing times after its preparation. When the speed or the quality of the metallic deposit becomes lower than a predetermined threshold, the solution S is considered to be degraded. Its duration of stability will correspond to the time during which it is still possible to deposit a metallic coating on a surface P at a speed and at a correspondingly acceptable quality.
- compositions are shown in Table 1 below.
- the volumes prepared are 300 mL.
- the deposition of the silver salt is carried out in all cases at a temperature of 50° C. at a pH of the order of 9.4.
- the rate of coating deposition on a surface is determined for the first hour by measuring the thickness of the deposit.
- the reference solution 50 comprises a silver salt as a metallizing agent and a cobalt salt as a reducing agent.
- the solutions S1, S2, S3 and S4 contain the same basic components as the reference solution S0 in the same proportions, and also contain at least one surfactant such as those described above.
- the stability of the solutions tested demonstrates the positive effect of the surfactants used compared with the reference solution.
- the surface P on which the metal deposit is made designates the surface of any part to be treated, whatever its material or shape.
- the part may for example be a plastic or polymer part, or else a metal or metal alloy part.
- the part can be of homogeneous composition or on the contrary comprise a mixture or a combination of several materials. It may for example comprise an additional layer of a material different from its main composition.
- the part to be treated can thus designate a polymer part covered with a metal layer.
- the surface P then denotes the metallic layer which covers the part.
- the manufacturing processes of the part and/or of its surface P are of little importance in the context of the present description.
- the part can for example result from a process of molding, machining or three-dimensional printing.
- the metallized layer can result from an electrolytic or non-electrolytic process.
- the metallic layer representing the surface P can for example comprise gold, palladium, nickel phosphorus, nickel boron, platinum.
- One layer or several metal layers can make it possible to improve the adhesion of the deposit described here, to protect the part against corrosion, to improve the surface quality, in particular in terms of roughness.
- the part can itself be made of metal, such as aluminum.
- the part to be treated is involved in the emission or reception of radio frequencies.
- the effective electrical conductivity which depends on the state of its surface and the electrical conductivity of the deposited metal, must be as high as possible. It is important that the deposit made according to the present description on the surface P be homogeneous and reproducible both in terms of thickness and quality.
- betaine-type surfactants can be used, either alone or in combination with other elements. Certain surfactants can however have negative effects on the stability of autocatalytic solutions or on the quality of silver deposits, which can appear porous or uneven, when present in certain concentration ranges.
- surfactants such as sodium dodecyl sulphate (SDS), cetyltrimetylammonium bromide (CTAB), potassium salt of perfluorooctane sulphonic acid (PFOSP), and the perfluorooctanoic acid (PFOA) can be excluded from the compositions, or limited to certain concentration ranges.
- commercial products such as silwet L77®, triton x100®, pluronic F-127® can also be excluded from the compositions or limited to certain concentration ranges.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CA3206610A CA3206610A1 (fr) | 2021-01-28 | 2022-01-24 | Composition stable pour depot catalytique d'argent |
KR1020237028239A KR20230131275A (ko) | 2021-01-28 | 2022-01-24 | 은을 촉매 침착시키기 위한 안정한 조성물 |
JP2023545755A JP2024504757A (ja) | 2021-01-28 | 2022-01-24 | 銀の触媒的堆積のための安定な組成物 |
EP22701064.2A EP4284962A1 (fr) | 2021-01-28 | 2022-01-24 | Composition stable pour dépôt catalytique d'argent |
IL304790A IL304790A (en) | 2021-01-28 | 2023-07-27 | The composition is stable for catalytic precipitation of silver |
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FRFR2100838 | 2021-01-28 | ||
FR2100838A FR3119172A1 (fr) | 2021-01-28 | 2021-01-28 | Composition stable pour dépôt catalytique d’argent |
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PCT/IB2022/050577 WO2022162512A1 (fr) | 2021-01-28 | 2022-01-24 | Composition stable pour dépôt catalytique d'argent |
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EP (1) | EP4284962A1 (fr) |
JP (1) | JP2024504757A (fr) |
KR (1) | KR20230131275A (fr) |
CA (1) | CA3206610A1 (fr) |
FR (1) | FR3119172A1 (fr) |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115986A (ja) * | 1984-06-29 | 1986-01-24 | Nobuyuki Koura | 安定な銀の無電解めつき液 |
US20080038449A1 (en) * | 2006-07-07 | 2008-02-14 | Rohm And Haas Electronic Materials Llc | Electroless copper and redox couples |
JP2010118334A (ja) * | 2008-10-14 | 2010-05-27 | Nippon Chem Ind Co Ltd | 導電性粉体及びそれを含む導電性材料並びに導電性粒子の製造方法 |
JP2013095956A (ja) * | 2011-10-31 | 2013-05-20 | Shinko Electric Ind Co Ltd | 無電解銅めっき浴 |
JP2014013660A (ja) * | 2012-07-03 | 2014-01-23 | Nippon Chem Ind Co Ltd | 導電性粒子及びそれを含む導電性材料 |
EP2975159A1 (fr) * | 2014-07-15 | 2016-01-20 | Rohm and Haas Electronic Materials LLC | Compositions de dépôt autocatalytique de cuivre |
US20160168715A1 (en) * | 2014-12-11 | 2016-06-16 | The Research Foundation For The State University Of New York | Electroless copper plating polydopamine nanoparticles |
-
2021
- 2021-01-28 FR FR2100838A patent/FR3119172A1/fr active Pending
-
2022
- 2022-01-24 EP EP22701064.2A patent/EP4284962A1/fr active Pending
- 2022-01-24 CA CA3206610A patent/CA3206610A1/fr active Pending
- 2022-01-24 JP JP2023545755A patent/JP2024504757A/ja active Pending
- 2022-01-24 WO PCT/IB2022/050577 patent/WO2022162512A1/fr active Application Filing
- 2022-01-24 KR KR1020237028239A patent/KR20230131275A/ko active Search and Examination
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2023
- 2023-07-27 IL IL304790A patent/IL304790A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115986A (ja) * | 1984-06-29 | 1986-01-24 | Nobuyuki Koura | 安定な銀の無電解めつき液 |
US20080038449A1 (en) * | 2006-07-07 | 2008-02-14 | Rohm And Haas Electronic Materials Llc | Electroless copper and redox couples |
JP2010118334A (ja) * | 2008-10-14 | 2010-05-27 | Nippon Chem Ind Co Ltd | 導電性粉体及びそれを含む導電性材料並びに導電性粒子の製造方法 |
JP2013095956A (ja) * | 2011-10-31 | 2013-05-20 | Shinko Electric Ind Co Ltd | 無電解銅めっき浴 |
JP2014013660A (ja) * | 2012-07-03 | 2014-01-23 | Nippon Chem Ind Co Ltd | 導電性粒子及びそれを含む導電性材料 |
EP2975159A1 (fr) * | 2014-07-15 | 2016-01-20 | Rohm and Haas Electronic Materials LLC | Compositions de dépôt autocatalytique de cuivre |
US20160168715A1 (en) * | 2014-12-11 | 2016-06-16 | The Research Foundation For The State University Of New York | Electroless copper plating polydopamine nanoparticles |
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CA3206610A1 (fr) | 2022-08-04 |
JP2024504757A (ja) | 2024-02-01 |
FR3119172A1 (fr) | 2022-07-29 |
KR20230131275A (ko) | 2023-09-12 |
EP4284962A1 (fr) | 2023-12-06 |
IL304790A (en) | 2023-09-01 |
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