JP2020528214A - プリント回路基板用のセミアディティブ法 - Google Patents
プリント回路基板用のセミアディティブ法 Download PDFInfo
- Publication number
- JP2020528214A JP2020528214A JP2020500792A JP2020500792A JP2020528214A JP 2020528214 A JP2020528214 A JP 2020528214A JP 2020500792 A JP2020500792 A JP 2020500792A JP 2020500792 A JP2020500792 A JP 2020500792A JP 2020528214 A JP2020528214 A JP 2020528214A
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- JP
- Japan
- Prior art keywords
- foil
- copper
- thin
- catalyst
- exposed
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 51
- 239000000654 additive Substances 0.000 title description 2
- 239000011888 foil Substances 0.000 claims abstract description 156
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 133
- 239000010949 copper Substances 0.000 claims abstract description 111
- 229910052802 copper Inorganic materials 0.000 claims abstract description 107
- 238000007772 electroless plating Methods 0.000 claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000005530 etching Methods 0.000 claims abstract description 36
- 238000009713 electroplating Methods 0.000 claims abstract description 29
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000007747 plating Methods 0.000 claims abstract description 23
- 239000003054 catalyst Substances 0.000 claims description 116
- 239000002245 particle Substances 0.000 claims description 72
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 33
- 239000011889 copper foil Substances 0.000 claims description 26
- 230000003197 catalytic effect Effects 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 19
- 229910052763 palladium Inorganic materials 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 239000010948 rhodium Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000001166 ammonium sulphate Substances 0.000 claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 238000000059 patterning Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 85
- 239000000463 material Substances 0.000 description 28
- 238000012545 processing Methods 0.000 description 23
- 229920002120 photoresistant polymer Polymers 0.000 description 22
- 239000011347 resin Substances 0.000 description 18
- 229920005989 resin Polymers 0.000 description 18
- 238000000151 deposition Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- 230000008021 deposition Effects 0.000 description 10
- 238000000608 laser ablation Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- 230000007717 exclusion Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 239000011256 inorganic filler Substances 0.000 description 5
- 229910003475 inorganic filler Inorganic materials 0.000 description 5
- 210000002381 plasma Anatomy 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 4
- 231100001010 corrosive Toxicity 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000010954 inorganic particle Substances 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 239000002355 dual-layer Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000002638 heterogeneous catalyst Substances 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012766 organic filler Substances 0.000 description 2
- 150000002940 palladium Chemical class 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000007261 regionalization Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910002676 Pd(NO3)2·2H2O Inorganic materials 0.000 description 1
- 101150003085 Pdcl gene Proteins 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 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
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 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
- 239000004643 cyanate ester Substances 0.000 description 1
- -1 cyanide ester Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052621 halloysite Inorganic materials 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
- 239000002815 homogeneous catalyst Substances 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 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 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- 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
- H05K3/421—Blind plated via connections
-
- 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
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1653—Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
-
- 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
- C23C18/1689—After-treatment
-
- 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
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1813—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by radiant energy
- C23C18/182—Radiation, e.g. UV, laser
-
- 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
-
- 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
- C23C28/02—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 only coatings only including layers of metallic material
- C23C28/023—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 only coatings only including layers of metallic material only coatings of metal elements only
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/30—Electroplating: Baths therefor from solutions of tin
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
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- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
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- H05K2201/09—Shape and layout
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Abstract
Description
頂面および底面に薄い導電層を有する誘電体から内側層を形成するステップであって、導電層の各表面に与えられる比較的厚い箔があり、頂面から比較的厚い箔を除去し、レーザなどによって最上部の箔および誘電体を通して穴あけし、レーザ穴あけによるビア開口が最下部の箔に侵入するのを、底面の比較的厚い箔の放熱能力によって防ぎながら、ビア開口を形成する、ステップと、底面の比較的厚い箔を除去するステップと、露出した誘電体表面および箔表面に無電解めっきするステップと、頂面および底面にレジストパターンを与えるステップと、少なくとも1つのビア開口が充填されるまで、レジストによって覆われていない露出した銅表面に電気めっきするステップと、レジストによって覆われていない露出した銅表面にスズめっきするステップと、フォトレジストを取り除くステップと、露出した銅表面を十分に高速エッチングして、以前にフォトレジストによって覆われた銅を除去するステップと、任意選択でスズめっきをエッチングするステップと、内側層に1つまたは複数の対の外側層を付加するステップであって、各外側層が、片面が箔で覆われた誘電体の箔がない面を内側層に重ねることによって形成される、ステップと、その後、内側層の充填されたビアの実質的に上にある少なくとも1つの外側層上に少なくとも1つのビア開口を穴あけするステップと、その後、ビア開口および露出した箔表面に無電解めっきするステップと、その後、パターンマスクを与えるステップと、その後、ビア開口および露出した箔表面に電気めっきするステップと、その後、露出した銅表面にスズめっきするステップと、その後、パターンマスクを取り除くステップと、その後、パターンマスクの下にあった箔および無電解めっきが除去されるまで箔および無電解めっきを高速エッチングするステップと、その後、任意選択で、スズを取り除くことにより、後続の外側層を与えるために新規の内側層を形成するステップと
によって形成される多層回路基板である。
104 銅
104A 頂面箔、最上部の箔、第2の箔、箔層、頂面、箔表面
104B 底面箔、最下部の箔、底面、第1の箔、第1の銅表面、箔層、底面
106 触媒樹脂混合物、開口、レーザ穴あけ、レーザ穴あけステップ、穴、ビア
108 無電解めっきの厚さ
110A レジスト
110A−1 レジスト
110B レジスト、ブランケットレジスト、底面レジスト
112 銅堆積
112−1 点ビア、高みの点ビア領域
114 元の層
116 スルーホール、穴
118 パターンレジスト
120 スルーホール、ビア
202 誘電体、積層板
203 裏打ち箔、積層板
204A 最上部の薄箔、銅箔
204B 最下部の箔、銅箔
205 裏打ち箔
206 行き止まりのビア
207 詳細な領域
210A フォトレジスト
210B フォトレジスト
216 スルーホール
217 無電解の銅
220 点ビア
302 新規の最上層、最上層誘電体
304 中央コア、2層コア、コア(中央)回路層
306 新規の最下層、最下層誘電体
308 誘電体
310 最上部の箔、層
312 誘電体
314 最下部の箔
320 ビア
322 ビア
324 ビア
326 ビア
328 ビアの内表面
330 無電解めっき堆積、層
340 パターンレジスト
342 電気めっき堆積、層
402 触媒積層板、触媒積層板基板
404B 薄い銅箔、薄箔、箔導体
405 厚い裏打ち箔
406 ビア開口、穴、ビア
407 チャネル、頂面チャネル
410 最下部側レジスト、ドライフィルム
411 最上部側レジスト、ドライフィルム
416 スルーホール
417 無電解めっきされた領域、銅堆積
502 追加された層
504 コア、コア(中央)回路層
506 追加された層
508 触媒積層板、触媒プリプレグ、表面層
510 触媒積層板、触媒プリプレグ、表面層
512 チャネル
520 ビア
522 ビア
524 ビア
526 ビア
530 導電パターン、銅
Claims (21)
- 積層板に接合された最下部の薄箔と、前記最下部の薄箔に隣接した比較的厚い裏打ち箔と、任意選択の薄い最上部の箔とを有する前記積層板上に微細ピッチ点ビアを形成するための方法であって、
前記積層板の頂面から前記最下部の薄箔まで行き止まりのビアをレーザ穴あけし、任意選択で前記積層板、前記最下部の薄箔、および前記裏打ち箔を通るスルーホールも穴あけするステップと、
前記裏打ち箔を除去するステップと、
前記レーザ穴あけされたビアおよび穴あけされた穴の表面を触媒で処置するステップと、
前記任意選択の最上部の箔表面および最下部の箔表面と、前記ビアの内表面と、前記任意選択であけられたスルーホールの内表面とを無電解めっきするステップと、
前記頂面および底面に、パターニングされたレジストを与えるステップと、
前記パターニングされたレジストより下のレベルまで銅が堆積するまで、前記回路基板に電気めっきするステップと、
前記回路基板の露出した銅領域をスズめっきするステップと、
前記パターニングされたレジストを取り除くステップと、
前記露出した銅領域を下にある前記積層板まで高速エッチングするステップと、
任意選択で前記スズめっきをエッチングするステップとを含む方法。 - 前記最下部の薄箔または前記任意選択の最上部の薄箔が約0.12mil〜0.15milの厚さの銅箔である、請求項1に記載の方法。
- 前記レーザで穴あけされたビアの直径が5mil未満である、請求項1に記載の方法。
- 前記無電解めっきおよび前記電気めっきが銅を堆積する、請求項1に記載の方法。
- 前記触媒が、パラジウム(Pd)、白金(Pt)、ロジウム(Rh)、イリジウム(Ir)、ニッケル(Ni)、金(Au)、銀(Ag)、コバルト(Co)、銅(Cu)、鉄(Fe)、マンガン(Mn)、クロム(Cr)、モリブデン(Mo)、タングステン(W)、チタン(Ti)、またはスズ(Sn)のうち少なくとも1つである、請求項1に記載の方法。
- 前記レーザ穴あけされたビアおよび前記穴あけされた穴の前記表面を触媒で処置する前記ステップが、前記レーザ穴あけステップ中に露出された触媒粒子を有する誘電体を含む、請求項1に記載の方法。
- 前記無電解めっきのステップが、前記最下部の薄箔または前記任意選択の最上部の薄箔の上に約0.06mil〜0.12milの厚さの銅を堆積する、請求項1に記載の方法。
- 前記パターニングされたレジストが、光学的に露出したドライフィルムである、請求項1に記載の方法。
- 前記高速エッチングのステップが、塩化アンモニウムまたは硫酸アンモニウムのうちの少なくとも1つを含むアンモニウムベースの腐食液を使用する、請求項1に記載の方法。
- 最下部の薄箔が接合された触媒積層板と、前記最下部の薄箔に与えられた取り外し可能な比較的厚い裏打ち箔と、任意選択の最上部の箔とを備える回路基板上に、ビアおよびパターンを形成するための方法であって、前記触媒積層板は、穴あけされている表面上の無電解めっきを可能にする触媒の粒子を備え、前記方法が、
前記触媒積層板の頂面から前記最下部の薄箔まで、前記最下部の薄箔に侵入しない行き止まりのビアをレーザ穴あけし、任意選択で前記積層板、前記最下部の薄箔、および前記最下部の裏打ち箔を通るスルーホールも穴あけするステップと、
前記最下部の裏打ち箔を除去するステップと、
前記最下部の薄箔と、任意選択の最上部の箔と、ビアの表面と、スルーホールの表面とに無電解めっきして、電気的に連続した導電層を形成するステップと、
前記頂面および底面に、パターニングされたレジストを与えるステップと、
露出した銅領域内で前記パターニングされたレジストより下のレベルまで銅が堆積するまで、前記回路基板を電気めっきするステップと、
前記回路基板の前記露出した銅領域をスズめっきするステップと、
前記パターニングされたレジストを取り除くステップと、
前記電気めっきされた銅および下にある薄箔が除去されるまで、前記露出した銅領域をエッチングするステップと、
任意選択で前記スズめっきをエッチングするステップと、
前記回路基板の前記頂面または前記底面に対して、任意選択で追加の誘電体層および箔層を積層するステップとを含む方法。 - 前記最下部の薄箔または前記任意選択の最上部の薄の厚さが約0.12〜0.15milである、請求項10に記載の方法。
- 前記レーザ穴あけされたビアおよび穴あけされた穴の前記表面を触媒で処置する前記ステップが、前記レーザ穴あけステップ中に露出された触媒粒子を有する誘電体を含む、請求項10に記載の方法。
- 前記触媒粒子が、パラジウム(Pd)、白金(Pt)、ロジウム(Rh)、イリジウム(Ir)、ニッケル(Ni)、金(Au)、銀(Ag)、コバルト(Co)、銅(Cu)、鉄(Fe)、マンガン(Mn)、クロム(Cr)、モリブデン(Mo)、タングステン(W)、チタン(Ti)、またはスズ(Sn)のうち少なくとも1つを含む、請求項10に記載の方法。
- 前記レジストが、前記パターニングされたレジストを形成するように光学的に露出されたドライフィルムである、請求項10に記載の方法。
- 内部コアと外側層の1つまたは複数の対とを有する多層基板を形成するための方法であって、
前記内部コアは、頂面に薄い最上部の箔が与えられている誘電体上に形成され、前記薄い最上部の箔の反対側の面が、任意選択で、比較的厚い取り外し可能な裏打ち箔を有し、前記誘電性の底面に、薄い最下部の箔が与えられ、前記薄い最下部の箔の反対側の面が、取り外し可能な比較的厚い裏打ち箔に接触しており、前記内部コアが、
前記誘電体を通して、前記薄い最下部の箔の深さまで、少なくとも1つのビアを、前記薄い最下部の箔に侵入させることなくレーザ穴あけし、任意選択で少なくとも1つのスルーホールを穴あけするステップであって、
前記レーザ穴あけされたビアおよび前記任意選択のスルーホールが露出した触媒粒子を伴う表面を有する、ステップと、
その後、露出した触媒粒子、前記最上部の薄い銅箔、および前記薄い最下部の銅箔に無電解めっきするステップと
その後、パターニングされたレジストを与えて、露出した銅領域および隠蔽された銅領域を生成するステップと、
その後、前記露出した銅領域に電気めっきするステップと、
その後、前記露出した銅領域にスズめっきするステップと、
その後、前記パターニングされたレジストを取り除くステップと、
その後、前記内部コアを、以前に隠蔽されていた銅領域から銅がエッチングされてなくなるまで高速エッチングするステップとによって形成され、
前記外側層の対は、前記内部コアの両側に誘電体層を与えることによって形成され、各誘電体層の前記反対側の面が薄箔を有し、それぞれの外側層の対について、
前記誘電体層を通して下にある銅層まで少なくとも1つのビアおよび任意選択のスルーホールをレーザ穴あけするステップであって、
前記レーザ穴あけされた穴が露出した触媒粒子を有する、ステップと、
前記露出した薄い銅箔および露出した触媒粒子を無電解めっきするステップと、
少なくとも1つの表面に対してパターニングされたレジストを与えるステップと、
前記露出した表面に電気めっきするステップと、
前記電気めっきされた領域上にスズをめっきするステップと、
前記パターニングされたレジストを取り除くステップと、
前記露出した銅を高速エッチングするステップとによって形成される、方法。 - 前記箔層のうち少なくとも1つの厚さが約0.12〜0.15milである、請求項15に記載の方法。
- 前記外側層のビアのうちの少なくとも1つが、対応する内側層のビアの上に積み重ねられる、請求項15に記載の方法。
- 前記エッチングがアンモニアベースの腐食液を用いて遂行される、請求項15に記載の方法。
- 前記アンモニアベースの腐食液が塩化アンモニウムまたは硫酸アンモニウムのうち少なくとも1つを含む、請求項18に記載の方法。
- 厚い裏打ち箔に隣接した薄箔が底面に積層されている触媒積層板を有する回路基板コアを形成するための方法であって、
前記触媒積層板の頂面に、前記薄箔に到達するが前記薄箔に侵入はしないビアを形成するステップであって、前記厚い裏打ち箔が、前記薄箔の溶融を防止するのに十分に厚いステップと、前記触媒積層板の前記頂面にパターンチャネルを形成するステップであって、前記パターンチャネルが、前記触媒積層板において下にある触媒粒子を露出するのに十分な深さを有する、ステップと、
前記厚い裏打ち箔を除去するステップと、
前記露出した触媒粒子を伴う領域における露出した銅表面および触媒積層板に無電解めっきするステップと、
前記頂面の全体に対してブランケットレジストマスクを与え、前記底面に対してパターニングされたレジストマスクを与えるステップと、
レジストマスクによって覆われていない前記底面の露出した領域をエッチングするステップと、
前記レジストマスクを取り除くステップとを含む方法。 - 充填されたビアおよびパターンを有する中央コアから多層回路基板を形成するための方法であって、
前記中央コアの各表面に触媒積層板を積層するステップと、
前記触媒積層板の外表面に、下にある触媒粒子を露出させるチャネルを形成するステップと、下にあるビアの軸と同心のビアも形成するステップであって、前記ビアが、前記触媒積層板に形成されて前記下にある充填されたビアを露出する、ステップと、
前記触媒積層板を無電解めっきすることにより、前記チャネルにパターンを形成するとともに前記触媒積層板の前記ビアを充填して、前記コアの充填されたビアと電気的に連続させるステップとを含む方法。
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KR102553641B1 (ko) | 2023-07-10 |
US10765012B2 (en) | 2020-09-01 |
TW201909265A (zh) | 2019-03-01 |
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WO2019014129A1 (en) | 2019-01-17 |
US11638354B2 (en) | 2023-04-25 |
EP3652359A4 (en) | 2021-04-14 |
EP3652359A1 (en) | 2020-05-20 |
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US20190014667A1 (en) | 2019-01-10 |
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US20200389983A1 (en) | 2020-12-10 |
US20230247774A1 (en) | 2023-08-03 |
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