CN113463074A - 一种沉铜组合物及沉铜方法 - Google Patents
一种沉铜组合物及沉铜方法 Download PDFInfo
- Publication number
- CN113463074A CN113463074A CN202110618998.1A CN202110618998A CN113463074A CN 113463074 A CN113463074 A CN 113463074A CN 202110618998 A CN202110618998 A CN 202110618998A CN 113463074 A CN113463074 A CN 113463074A
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- Prior art keywords
- copper
- copper deposition
- substrate
- deposition composition
- deposition
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 255
- 239000010949 copper Substances 0.000 title claims abstract description 255
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 255
- 230000008021 deposition Effects 0.000 title claims abstract description 192
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 238000000151 deposition Methods 0.000 title abstract description 184
- 239000003381 stabilizer Substances 0.000 claims abstract description 29
- 238000007747 plating Methods 0.000 claims abstract description 20
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 239000000758 substrate Substances 0.000 claims description 85
- 239000003638 chemical reducing agent Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 239000004094 surface-active agent Substances 0.000 claims description 18
- -1 sulfydryl Chemical group 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 239000005749 Copper compound Substances 0.000 claims description 9
- 150000001880 copper compounds Chemical class 0.000 claims description 9
- 239000002736 nonionic surfactant Substances 0.000 claims description 8
- 239000003945 anionic surfactant Substances 0.000 claims description 7
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 7
- 125000000623 heterocyclic group Chemical group 0.000 claims description 7
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 125000003172 aldehyde group Chemical group 0.000 claims description 6
- 125000003342 alkenyl group Chemical group 0.000 claims description 6
- 125000003368 amide group Chemical group 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 125000003282 alkyl amino group Chemical group 0.000 claims description 3
- 125000004429 atom Chemical group 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 3
- 229940116318 copper carbonate Drugs 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 claims description 3
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 238000005137 deposition process Methods 0.000 abstract description 8
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000008399 tap water Substances 0.000 description 27
- 235000020679 tap water Nutrition 0.000 description 27
- 239000003795 chemical substances by application Substances 0.000 description 25
- 239000000243 solution Substances 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- 239000000126 substance Substances 0.000 description 17
- 235000010855 food raising agent Nutrition 0.000 description 16
- 238000001556 precipitation Methods 0.000 description 16
- 239000002202 Polyethylene glycol Substances 0.000 description 15
- 229920001223 polyethylene glycol Polymers 0.000 description 15
- 230000003213 activating effect Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 14
- 101100165186 Caenorhabditis elegans bath-34 gene Proteins 0.000 description 13
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- 230000003750 conditioning effect Effects 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 6
- 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 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 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 6
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- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 6
- ICCLGNPZARKJKF-UHFFFAOYSA-N 3-[amino(azaniumylidene)methyl]sulfanylpropanoate Chemical compound NC(=N)SCCC(O)=O ICCLGNPZARKJKF-UHFFFAOYSA-N 0.000 description 5
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- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 5
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- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- DWPCPZJAHOETAG-IMJSIDKUSA-N L-lanthionine Chemical compound OC(=O)[C@@H](N)CSC[C@H](N)C(O)=O DWPCPZJAHOETAG-IMJSIDKUSA-N 0.000 description 4
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- DWPCPZJAHOETAG-UHFFFAOYSA-N meso-lanthionine Natural products OC(=O)C(N)CSCC(N)C(O)=O DWPCPZJAHOETAG-UHFFFAOYSA-N 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
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- 229910019142 PO4 Inorganic materials 0.000 description 3
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- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 3
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- IQCOJHLXUZMKBM-UHFFFAOYSA-N 2-sulfanylbenzimidazole-2-carboxylic acid Chemical compound C1=CC=CC2=NC(C(=O)O)(S)N=C21 IQCOJHLXUZMKBM-UHFFFAOYSA-N 0.000 description 2
- 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 description 2
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- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
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- HXYXDTAROKJMBO-UHFFFAOYSA-N benzimidazol-1-amine Chemical compound C1=CC=C2N(N)C=NC2=C1 HXYXDTAROKJMBO-UHFFFAOYSA-N 0.000 description 2
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- ZIWRUEGECALFST-UHFFFAOYSA-M sodium 4-(4-dodecoxysulfonylphenoxy)benzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCOS(=O)(=O)c1ccc(Oc2ccc(cc2)S([O-])(=O)=O)cc1 ZIWRUEGECALFST-UHFFFAOYSA-M 0.000 description 2
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- NCLUCMXMAPDFGT-UHFFFAOYSA-L n,n-diethylcarbamodithioate;nickel(2+) Chemical compound [Ni+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S NCLUCMXMAPDFGT-UHFFFAOYSA-L 0.000 description 1
- LSCYTCMNCWMCQE-UHFFFAOYSA-N n-methylpyridin-4-amine Chemical class CNC1=CC=NC=C1 LSCYTCMNCWMCQE-UHFFFAOYSA-N 0.000 description 1
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 1
- VNYOIRCILMCTHO-UHFFFAOYSA-L nickel(2+);oxalate;dihydrate Chemical compound O.O.[Ni+2].[O-]C(=O)C([O-])=O VNYOIRCILMCTHO-UHFFFAOYSA-L 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- IBBMAWULFFBRKK-UHFFFAOYSA-N picolinamide Chemical class NC(=O)C1=CC=CC=N1 IBBMAWULFFBRKK-UHFFFAOYSA-N 0.000 description 1
- 230000007505 plaque formation Effects 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- UBQKCCHYAOITMY-UHFFFAOYSA-N pyridin-2-ol Chemical class OC1=CC=CC=N1 UBQKCCHYAOITMY-UHFFFAOYSA-N 0.000 description 1
- NWELCUKYUCBVKK-UHFFFAOYSA-N pyridin-2-ylhydrazine Chemical class NNC1=CC=CC=N1 NWELCUKYUCBVKK-UHFFFAOYSA-N 0.000 description 1
- MIROPXUFDXCYLG-UHFFFAOYSA-N pyridine-2,5-diamine Chemical compound NC1=CC=C(N)N=C1 MIROPXUFDXCYLG-UHFFFAOYSA-N 0.000 description 1
- FVGUUJNEJJPLCS-UHFFFAOYSA-N pyridine-3-carboximidamide Chemical class NC(=N)C1=CC=CN=C1 FVGUUJNEJJPLCS-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
- 239000004308 thiabendazole Substances 0.000 description 1
- 235000010296 thiabendazole Nutrition 0.000 description 1
- 229960004546 thiabendazole Drugs 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 1
Images
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
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
- C23C18/40—Coating with copper using reducing agents
- C23C18/405—Formaldehyde
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/422—Plated through-holes or plated via connections characterised by electroless plating method; pretreatment therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemically Coating (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
浴30 | 浴31 | 浴32 | |
沉铜速率(um/h) | 0.68 | 0.60 | 0.88 |
沉铜浴33 | 沉铜浴34 | |
A | 10g/L | 10g/L |
B | 40g/L | 40g/L |
C | 8g/L | 8g/L |
D | 4g/L | 4g/L |
E | 0.5ppm | / |
F | / | 0.5ppm |
G | 10ppm | / |
H | / | 10ppm |
I | 余量 | 余量 |
Claims (10)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115739110A (zh) * | 2022-11-04 | 2023-03-07 | 湖州美奇医疗器械有限公司 | 基于铂的催化剂制备方法及其应用 |
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WO2016126212A1 (en) * | 2015-02-04 | 2016-08-11 | Agency For Science, Technology And Research | A process for plating a metal on a textile fiber |
JP2018119209A (ja) * | 2017-01-23 | 2018-08-02 | ローム アンド ハース エレクトロニック マテリアルズ エルエルシーRohm and Haas Electronic Materials LLC | 無電解銅めっき組成物 |
CN109628915A (zh) * | 2017-10-06 | 2019-04-16 | 罗门哈斯电子材料有限责任公司 | 稳定的化学镀铜组合物和在衬底上化学镀铜的方法 |
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CN111893466A (zh) * | 2020-08-05 | 2020-11-06 | 广州皓悦新材料科技有限公司 | 一种水平沉铜液及其制备方法 |
CN113463075A (zh) * | 2021-06-04 | 2021-10-01 | 广东硕成科技有限公司 | 一种化学镀铜液及其制备方法 |
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2021
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Patent Citations (10)
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JPS58217669A (ja) * | 1982-06-14 | 1983-12-17 | Toshiba Corp | 化学銅めつき液 |
CN103388138A (zh) * | 2012-05-07 | 2013-11-13 | 上村工业株式会社 | 非电解镀铜浴和非电解镀铜方法 |
CN104651814A (zh) * | 2014-11-28 | 2015-05-27 | 广东致卓精密金属科技有限公司 | 一种化学镀铜溶液及化学镀铜方法 |
WO2016126212A1 (en) * | 2015-02-04 | 2016-08-11 | Agency For Science, Technology And Research | A process for plating a metal on a textile fiber |
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CN115739110A (zh) * | 2022-11-04 | 2023-03-07 | 湖州美奇医疗器械有限公司 | 基于铂的催化剂制备方法及其应用 |
CN115739110B (zh) * | 2022-11-04 | 2024-01-30 | 湖州美奇医疗器械有限公司 | 基于铂的催化剂制备方法及其应用 |
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Address after: 512000 chlor alkali characteristic industrial base of hougongdu Economic Development Zone, Rucheng Town, Ruyuan County, Shaoguan City, Guangdong Province Applicant after: Guangdong Shuocheng Technology Co.,Ltd. Address before: 512000 chlor alkali characteristic industrial base of hougongdu Economic Development Zone, Rucheng Town, Ruyuan County, Shaoguan City, Guangdong Province Applicant before: GUANGDONG SHUOCHENG TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A copper sinking composite and copper sinking method Granted publication date: 20220614 Pledgee: Guangdong Ruyuan Rural Commercial Bank Co.,Ltd. Pledgor: Guangdong Shuocheng Technology Co.,Ltd. Registration number: Y2024980013062 |