JP7324320B2 - 表面処理銅箔および銅クラッドラミネート - Google Patents
表面処理銅箔および銅クラッドラミネート Download PDFInfo
- Publication number
- JP7324320B2 JP7324320B2 JP2022003164A JP2022003164A JP7324320B2 JP 7324320 B2 JP7324320 B2 JP 7324320B2 JP 2022003164 A JP2022003164 A JP 2022003164A JP 2022003164 A JP2022003164 A JP 2022003164A JP 7324320 B2 JP7324320 B2 JP 7324320B2
- Authority
- JP
- Japan
- Prior art keywords
- copper foil
- treated
- layer
- treated copper
- porphyrin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 229
- 239000011889 copper foil Substances 0.000 title claims description 203
- 229910052802 copper Inorganic materials 0.000 title claims description 25
- 239000010949 copper Substances 0.000 title claims description 25
- 239000010410 layer Substances 0.000 claims description 172
- 239000000463 material Substances 0.000 claims description 44
- 239000000758 substrate Substances 0.000 claims description 37
- 239000002335 surface treatment layer Substances 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- 150000004032 porphyrins Chemical group 0.000 claims description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 15
- 239000011701 zinc Substances 0.000 claims description 15
- 229910052725 zinc Inorganic materials 0.000 claims description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 14
- -1 porphyrin macrocycle Chemical class 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000011135 tin Substances 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims 1
- 239000012964 benzotriazole Substances 0.000 claims 1
- REPFNYFEIOZRLM-UHFFFAOYSA-N chembl376444 Chemical compound C1=CC(N)=CC=C1C(C1=CC=C(N1)C(C=1C=CC(N)=CC=1)=C1C=CC(=N1)C(C=1C=CC(N)=CC=1)=C1C=CC(N1)=C1C=2C=CC(N)=CC=2)=C2N=C1C=C2 REPFNYFEIOZRLM-UHFFFAOYSA-N 0.000 claims 1
- 150000004696 coordination complex Chemical class 0.000 claims 1
- QZQIWEZRSIPYCU-UHFFFAOYSA-N trithiole Chemical compound S1SC=CS1 QZQIWEZRSIPYCU-UHFFFAOYSA-N 0.000 claims 1
- 229920002120 photoresistant polymer Polymers 0.000 description 31
- 238000005530 etching Methods 0.000 description 27
- 238000000034 method Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 22
- 238000004070 electrodeposition Methods 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 238000000151 deposition Methods 0.000 description 9
- 230000008021 deposition Effects 0.000 description 9
- 239000008151 electrolyte solution Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000002356 single layer Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000005498 polishing Methods 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229910000365 copper sulfate Inorganic materials 0.000 description 6
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 5
- 239000011162 core material Substances 0.000 description 5
- 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 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 3
- JLVSRWOIZZXQAD-UHFFFAOYSA-N 2,3-disulfanylpropane-1-sulfonic acid Chemical compound OS(=O)(=O)CC(S)CS JLVSRWOIZZXQAD-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000307 polymer substrate Polymers 0.000 description 2
- 229920006380 polyphenylene oxide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000600 sorbitol Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 1
- OXYZDRAJMHGSMW-UHFFFAOYSA-N 3-chloropropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCCl OXYZDRAJMHGSMW-UHFFFAOYSA-N 0.000 description 1
- URDOJQUSEUXVRP-UHFFFAOYSA-N 3-triethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CCO[Si](OCC)(OCC)CCCOC(=O)C(C)=C URDOJQUSEUXVRP-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- LVACOMKKELLCHJ-UHFFFAOYSA-N 3-trimethoxysilylpropylurea Chemical compound CO[Si](OC)(OC)CCCNC(N)=O LVACOMKKELLCHJ-UHFFFAOYSA-N 0.000 description 1
- DDVHXZANLAFDSZ-UHFFFAOYSA-N 8-triethoxysilyloctyl prop-2-enoate Chemical compound CCO[Si](CCCCCCCCOC(=O)C=C)(OCC)OCC DDVHXZANLAFDSZ-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- KXJLGCBCRCSXQF-UHFFFAOYSA-N [diacetyloxy(ethyl)silyl] acetate Chemical compound CC(=O)O[Si](CC)(OC(C)=O)OC(C)=O KXJLGCBCRCSXQF-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- JEZFASCUIZYYEV-UHFFFAOYSA-N chloro(triethoxy)silane Chemical compound CCO[Si](Cl)(OCC)OCC JEZFASCUIZYYEV-UHFFFAOYSA-N 0.000 description 1
- 229940117975 chromium trioxide Drugs 0.000 description 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004643 cyanate ester Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000005055 methyl trichlorosilane Substances 0.000 description 1
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 1
- KRTSDMXIXPKRQR-AATRIKPKSA-N monocrotophos Chemical compound CNC(=O)\C=C(/C)OP(=O)(OC)OC KRTSDMXIXPKRQR-AATRIKPKSA-N 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 230000024121 nodulation Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229950008882 polysorbate Drugs 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NQXGLOVMOABDLI-UHFFFAOYSA-N sodium oxido(oxo)phosphanium Chemical compound [Na+].[O-][PH+]=O NQXGLOVMOABDLI-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- CDMIYIVDILNBIJ-UHFFFAOYSA-N triazinane-4,5,6-trithione Chemical class SC1=NN=NC(S)=C1S CDMIYIVDILNBIJ-UHFFFAOYSA-N 0.000 description 1
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical compound CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 description 1
- 239000005051 trimethylchlorosilane Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-UHFFFAOYSA-L 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
- C25D7/0635—In radial cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
- H05K1/0298—Multilayer circuits
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- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
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- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/382—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
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- C25D3/00—Electroplating: Baths therefor
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- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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Description
(1)ステップA
ステップAを実施し、バルク銅箔を提供する。電析機器を使用して、電析プロセスによって電析銅箔(または裸銅箔と称される)が形成されてもよい。具体的には、電析機器は、少なくとも、カソードとしてのドラム、一組の不溶性金属アノード板、および電解質溶液用の入口マニホルドを有してもよい。特に、ドラムは、回転可能な金属ドラムであり、その表面は鏡面研磨面である。金属アノード板は、ドラムの下側半分から分離され、ドラムの下側半分に固定され、ドラムの下側半分が取り囲まれる。入口マニホルドは、ドラムの下側、および2つの金属アノード板の間に固定して配置されてもよい。
<1.1 裸銅箔の電解質溶液の組成と電解条件>
硫酸銅(CuSO4・5H2O):320g/L
硫酸:95g/L
塩化物イオン(RCl Labscan社製の塩酸から):30mg/L(ppm)
液温:52℃
電流密度:50A/dm2
バルク銅箔の厚さ:18μm
ポリオキシエチレンソルビトール脂肪酸エステルの濃度:6.5~12.5ppm
2,3ジメルカプトプロパンスルホン酸(DMPS)の濃度:4~8ppm
<1.2 カソードドラム>
回転速度:1.0m/分
<1.3 研磨バフ>
種類(日本特殊化学株式会社):#2000
回転速度:300~600rpm。
ステップBでは、バルク銅箔に対して表面洗浄プロセスが実施され、バルク銅箔の表面が確実に汚染物質(油汚れおよび酸化物など)を含まないようにされる。製造パラメータは、以下の通りである:
<2.1 洗浄液の組成および洗浄条件>
硫酸銅(CuSO4・5H2O):130g/L
硫酸:50g/L
液温:27℃
浸漬時間:30秒。
ステップCでは、前述のバルク銅箔の成膜側に、粗面化層が形成される。例えば、電析プロセスにより、バルク銅箔の成膜側に、ノジュールが形成されてもよい。また、ノジュールが落下することを防止するため、さらに、ノジュールの上に被覆層が形成されてもよい。粗面化層(ノジュールおよび被覆層を含む)の製造パラメータは、以下の通りである:
<3.1 ノジュール形成のパラメータ>
硫酸銅(CuSO4・5H2O):70g/L
硫酸:100g/L
液温:25℃
電流密度:34A/dm2
処理時間:10秒
<3.2 被覆層を形成するパラメータ>
硫酸銅(CuSO4・5H2O):320g/L
硫酸:100g/L
液温:40℃
電流密度:9A/dm2
処理時間:10秒。
工程Dでは、例えば、電析プロセスにより、バルク銅箔の各側にバリア層が形成され、粗面化層を有するバルク銅箔の側に、二重層スタック構造(例えば、これに限られるものではないが、ニッケル含有層/亜鉛含有層)を有するバリア層が形成される一方、粗面化層を有しないバルク銅箔の側には、単一層構造(例えば、これに限られるものではないが、亜鉛含有層)を有するバリア層が形成される。その製造パラメータは、以下の通りである:
<4.1 ニッケル含有層を形成する電解質組成および電析条件>
硫酸ニッケル(NiSO4・7H2O):180g/L
ホウ酸(H3BO3):30g/L
次亜リン酸ナトリウム(NaH2PO2):3.6g/L
液温:20℃
電流密度:0.4A/dm2
処理時間:3秒
<4.2 亜鉛含有層を形成するための電解質組成および電析条件>
硫酸亜鉛(ZnSO4・7H2O):9g/L
バナジン酸アンモニウム((NH4)3VO4):0.3g/L
液温:20℃
電流密度:0.4A/dm2
処理時間:3秒。
ステップEでは、前述のバルク銅箔の各側のバリア層上に、クロム含有層のような防錆層が形成される。製造パラメータは、以下の通りである:
<5.1 クロム含有層を形成するための電解質組成および電析条件>
三酸化クロム(CrO3):5g/L
液温:30℃
電流密度:1A/dm2
処理時間:3秒。
ステップFでは、粗面化層、バリア層、および防錆層を有するバルク銅箔の側に、カップリング層が形成される。例えば、前述の電析プロセスの完了後、バルク銅箔は、水により洗浄され、バルク銅箔の表面は、乾燥プロセスに晒されない。その後、バルク銅箔の粗面化層を有する側の防錆層上に、シランカップリング剤を含む水溶液が噴霧され、防錆層の表面にシランカップリング剤が吸着される。次に、バルク銅箔がオーブン中で乾燥されてもよい。製造パラメータは、以下の通りである:
<6.1 シランカップリング剤を製造するためのパラメータ>
シランカップリング剤:3-アミノプロピルトリエトキシシラン(S-330)
水溶液中のシランカップリング剤の濃度:0.25重量%
噴霧時間:3秒。
実施例1~8は、表面処理銅箔であり、製造プロセスは、前述の製造プロセスにおけるステップAからFを有する。表1には、前述の製造プロセスのものと異なる製造パラメータを示す。具体的には、実施例1~8の表面処理銅箔の構造を図4に示す。図において、粗面化層が成膜側に配置され、ニッケル含有層、亜鉛含有層、クロム含有層、およびカップリング層が、順次粗面化層上に形成される。カップリング層の最外表面は、表面処理銅箔の処理表面である。粗面化層を有しないバルク銅箔の側に、亜鉛含有層およびクロム含有層が続けて形成され、クロム含有層の最外表面は、表面処理銅箔の反対表面である。表面処理銅箔の厚さは、18μmである。
比較例1~8の製造プロセスは、前述の製造プロセスにおけるステップA~Fに対応する。表1には、前述の製造プロセスとは異なる製造パラメータを示す。具体的には、比較例1~8の表面処理銅箔の構造を図4に示す。図において、成膜側に粗面化層が配置され、該粗面化層上に、ニッケル含有層、亜鉛含有層、クロム含有層、およびカップリング層が順次形成される。カップリング層の最外表面は、表面処理銅箔の処理表面である。亜鉛含有層およびクロム含有層は、粗面化層を有しないバルク銅箔の側に順次形成され、クロム含有層の最外表面は、表面処理銅箔の反対表面である。
以下、<材料体積(Vm)>、<5点ピーク高さ(S5p)>、<エッチングファクター(EF)>、<剥離強度>、<ドライフィルムフォトレジストの接着強度>のような、前述の実施例1~8および比較例1~8の試験結果をさらに詳述する。結果を表2に示す。
表面処理銅箔の処理表面の材料体積(Vm)および5点ピーク高さ(S5p)は、ISO 25178-2:2012に準拠して定められ、レーザ顕微鏡(オリンパス社製LEXT OLS5000-SAF)の表面テクスチャ分析を用いて取得される。具体的な測定条件は以下の通りである:
光源の波長:405nm
対物レンズ倍率:100倍、対物レンズ(MPLAPON-100x LEXT、オリンパス社製)
光学ズーム:1.0×
画像面積:129μm×129μm
解像度:1024画素×1024画素
モード:自動傾斜除去
フィルタ:Sフィルタ=2.5μm。
表面処理銅箔および樹脂板のような基板が、表面処理銅箔の処理表面が基板と面するようにして、ラミネートされる。次に、表面処理銅箔の反対表面(すなわち、処理表面とは反対側の表面)に、ドライフィルムフォトレジスト層がラミネートされ、ラミネート基板が形成される。次に、露光マスク(L/S=1/1、線形パターンレイアウト、各線幅は30μm)を用いて、ラミネート基板の表面が被覆される。露光マスクの被覆下で、露光機を用いてラミネート基板を15分間露光し、ドライフィルムフォトレジスト層の一部を硬化した。
表面処理銅箔および厚さが0.09mmの市販の樹脂シート(メグトロン6、パナソニック株式会社製)を、表面処理銅箔の処理面が市販の樹脂シートと対向するようにラミネートし、ラミネート基板を形成した。次に、ラミネート板を125mm(L)×10mm(W)のサンプルサイズに切断する。対応するパラメータおよび圧縮条件は、以下の通りであり、測定結果を表2に示す:
サンプルサイズ:125mm(L)×10mm(W)
樹脂シート:メガトロン6、パナソニック
加圧温度:190℃
圧力:427psi
プレス時間:120分
その後、万能試験機を使用し、JIS C6471規格に従い、表面処理銅箔を銅クラッドラミネートから90°の角度で剥離した。剥離条件は以下の通りである:
剥離設備:万能試験機、島津AG-I
剥離角:90°。
表面処理銅箔および樹脂シート(メグトロン6、パナソニック株式会社製)を、表面処理銅箔の処理面が樹脂シートに対向するようにラミネートする。次に、表面処理銅箔の反対表面(すなわち、処理表面とは反対側の表面)と、ドライフィルムフォトレジスト層(FF-9030A、Chang Chunプラスチックス社)をラミネートし、ラミネート基板を形成する。特に、ドライフィルムフォトレジスト層をラミネートするプ際の加圧条件は、温度65℃、圧力3.0kg/cm2、プレス時間3秒である。
クラスA:線幅≦30μmの特定のグループにおいて、グループの5つのサンプル全てのパターン化フォトレジスト層が、パターン化表面処理銅箔の表面から剥離しないこと、
クラスB:線幅≦30μmの特定のグループにおいて、グループの5つのサンプルのパターン化フォトレジスト層の一部がパターン化表面処理銅箔の表面から剥離する。ただし、線幅>30μmの特定のグループにおいては、グループの5つのサンプル全てのパターン化フォトレジスト層が、パターン化表面処理銅箔の表面から剥離しないこと。
表2の実施例1~8では、表面処理銅箔の処理表面の材料体積(Vm)は、0.06から1.45μm3/μm2の範囲であり、処理表面の5点のピーク高さ(S5p)が0.15から2.00μmの範囲である場合、表面処理銅箔のエッチングファクターは2.8より大きく、これにより剥離強度は、0.55N/mmよりも大きい。一方、比較例1~8では、表面処理銅箔の処理表面の材料体積(Vm)および5点ピーク高さ(S5p)の一方が前述の範囲に入らない場合、表面処理銅箔のエッチングファクターは、2.8未満であり、または剥離強度は、0.55N/mm未満となる。
100A 処理表面
110 バルク銅箔
110A 第1の表面
110B 第2の表面
112a 第1の表面処理層
Claims (9)
- 表面処理銅箔であって、
第1の表面を有するバルク銅箔と、
前記第1の表面に配置され、粗面化層を有する第1の表面処理層であって、最外表面が当該表面処理銅箔の処理表面であり、前記処理表面の材料体積(Vm)は、0.06から1.45μm3/μm2の範囲であり、前記処理表面の5点ピーク高さ(S5p)は、0.15から2.00μmの範囲である、第1の表面処理層と、
を有する、表面処理銅箔。 - さらに、前記処理表面と対向する反対表面を有し、
該反対表面は、当該表面処理銅箔の最外表面であり、
前記反対表面の5点のピーク高さ(S5p)は、0.55から1.50μmの範囲である、請求項1に記載の表面処理銅箔。 - 前記第1の表面処理層は、さらに、バリア層、防錆層、およびカップリング層の少なくとも1つを有する、請求項1に記載の表面処理銅箔。
- さらに、前記第1の表面と対向する前記バルク銅箔の第2の表面に配置された、第2の表面処理層を有し、
前記第2の表面処理層は、バリア層および防錆層の少なくとも1つを有する、請求項1に記載の表面処理銅箔。 - 前記第2の表面処理層の最外表面の5点のピーク高さ(S5p)は、0.55から1.50μmの範囲である、請求項4に記載の表面処理銅箔。
- 前記防錆層の最外表面は、前記第2の表面処理層の前記最外表面である、請求項5に記載の表面処理銅箔。
- 前記バリア層の組成は、ニッケル、亜鉛、クロム、コバルト、モリブデン、鉄、スズ、バナジウム、タングステンまたはチタンを含み、
前記防錆層の組成は、ニッケル、亜鉛、クロム、コバルト、モリブデン、鉄、スズ、バナジウム、タングステン、チタン、ポルフィリン基、ベンゾトリアゾール、トリチオール、またはこれらの組み合わせを含み、
前記ポルフィリン基は、ポルフィリン、ポルフィリンマクロ環、拡張ポルフィリン、収縮ポルフィリン、線状ポルフィリンポリマー、ポルフィリンサンドイッチ配位複合体、ポルフィリンアレイ、または5,10,15,20-テトラキス(4-アミノフェニル)-ポルフィリン-亜鉛(II)を含み、
前記バリア層の組成は、前記防錆層の組成とは異なる、請求項4に記載の表面処理銅箔。 - 銅クラッドラミネートであって、
基板と、
請求項1乃至7のいずれか一項に記載の電析銅箔と、
を有し、
前記処理表面は、前記基板に取り付けられる、銅クラッドラミネート。 - 前記処理表面は、前記基板と直接接触している、請求項8に記載の銅クラッドラミネート。
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