JP4577156B2 - 無電解ニッケルめっき浴およびそれを用いた無電解めっき方法 - Google Patents
無電解ニッケルめっき浴およびそれを用いた無電解めっき方法 Download PDFInfo
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- JP4577156B2 JP4577156B2 JP2005245612A JP2005245612A JP4577156B2 JP 4577156 B2 JP4577156 B2 JP 4577156B2 JP 2005245612 A JP2005245612 A JP 2005245612A JP 2005245612 A JP2005245612 A JP 2005245612A JP 4577156 B2 JP4577156 B2 JP 4577156B2
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- electroless
- plating
- nickel plating
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 149
- 238000007747 plating Methods 0.000 title claims description 115
- 229910052759 nickel Inorganic materials 0.000 title claims description 75
- 238000000034 method Methods 0.000 title claims description 31
- 238000007772 electroless plating Methods 0.000 title claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 49
- 239000010949 copper Substances 0.000 claims description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 48
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 5
- 235000014655 lactic acid Nutrition 0.000 claims description 5
- 239000004310 lactic acid Substances 0.000 claims description 5
- 229940078494 nickel acetate Drugs 0.000 claims description 5
- 239000008139 complexing agent Substances 0.000 claims description 3
- 150000002815 nickel Chemical class 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000006179 pH buffering agent Substances 0.000 claims 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 26
- 229910052737 gold Inorganic materials 0.000 description 21
- 239000010931 gold Substances 0.000 description 21
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 19
- 239000003054 catalyst Substances 0.000 description 13
- 229910052763 palladium Inorganic materials 0.000 description 13
- 230000003197 catalytic effect Effects 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000004913 activation Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 150000001639 boron compounds Chemical class 0.000 description 3
- -1 chlorite compound Chemical class 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 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
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 238000005844 autocatalytic reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000006174 pH buffer Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- SDKPSXWGRWWLKR-UHFFFAOYSA-M sodium;9,10-dioxoanthracene-1-sulfonate Chemical compound [Na+].O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)[O-] SDKPSXWGRWWLKR-UHFFFAOYSA-M 0.000 description 1
- VMDSWYDTKFSTQH-UHFFFAOYSA-N sodium;gold(1+);dicyanide Chemical compound [Na+].[Au+].N#[C-].N#[C-] VMDSWYDTKFSTQH-UHFFFAOYSA-N 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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- Parts Printed On Printed Circuit Boards (AREA)
- Chemically Coating (AREA)
- Electrodes Of Semiconductors (AREA)
Description
以下、本発明の実施の形態1における無電解ニッケルめっき浴およびそれを用いた無電解ニッケルめっき方法について、プリント配線板などに形成した銅電極の上に無電解めっき方法によって所定のめっき電極パターンを形成する方法を一例として図面を用いて説明する。
酢酸ニッケル:35g/L
乳酸:62ml/L
EDTA:19g/L
ホウ酸:25g/L
ヒドラジン水和物:49ml/L
pH:11(水酸化ナトリウムで調整)
浴温:80℃
この無電解ニッケルめっき浴を用いて無電解ニッケルめっきを行うことによって銅電極2の表面のみに選択的にニッケルめっき膜4を製膜することが可能であった。特に、この無電解ニッケルめっき浴の特徴は銅電極2の表面のみにニッケルめっき膜4を選択的に形成することが可能となり、さらに無電解ニッケルめっき浴の組成を限定することによってニッケルめっき膜4の形成速度を11μm/hrという無電解めっきとしては高速のめっきレートで製膜できることを実現している。
2 銅電極
3 レジストパターン
4 ニッケルめっき膜
5 金めっき膜
Claims (2)
- 酢酸ニッケルからなる金属供給源としてのニッケル塩と、還元剤としてのヒドラジンと、錯化剤としてのEDTAおよび乳酸と、pH緩衝剤としてのホウ酸とからなり、前記酢酸ニッケルを30.3〜35.4g/L、前記ヒドラジンを24.3〜48.6ml/L、前記乳酸を49.3〜61.6ml/L、前記EDTAを9.5〜19g/L、前記ホウ酸を24.8〜37.2g/Lの浴組成とした無電解ニッケルめっき浴。
- 請求項1記載の無電解ニッケルめっき浴を用いて、絶縁基板上の銅電極上に無電解ニッケルめっき皮膜を形成する無電解めっき方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005245612A JP4577156B2 (ja) | 2005-08-26 | 2005-08-26 | 無電解ニッケルめっき浴およびそれを用いた無電解めっき方法 |
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JP2005245612A JP4577156B2 (ja) | 2005-08-26 | 2005-08-26 | 無電解ニッケルめっき浴およびそれを用いた無電解めっき方法 |
Publications (3)
Publication Number | Publication Date |
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JP2007056346A JP2007056346A (ja) | 2007-03-08 |
JP2007056346A5 JP2007056346A5 (ja) | 2008-08-14 |
JP4577156B2 true JP4577156B2 (ja) | 2010-11-10 |
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JP2005245612A Expired - Fee Related JP4577156B2 (ja) | 2005-08-26 | 2005-08-26 | 無電解ニッケルめっき浴およびそれを用いた無電解めっき方法 |
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JP (1) | JP4577156B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113678232B (zh) * | 2019-04-10 | 2024-08-23 | 三菱电机株式会社 | 半导体装置及其制造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001192850A (ja) * | 2000-01-11 | 2001-07-17 | Ebe Katsuo | 摺動部品用表面処理液及び摺動部品の表面処理方法及び摺動部品 |
JP2001214279A (ja) * | 2000-01-28 | 2001-08-07 | Kyocera Corp | 無電解ニッケルめっき浴 |
JP2003183845A (ja) * | 2001-10-24 | 2003-07-03 | Shipley Co Llc | 無電解めっき液用安定剤及びそれらの使用方法 |
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- 2005-08-26 JP JP2005245612A patent/JP4577156B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001192850A (ja) * | 2000-01-11 | 2001-07-17 | Ebe Katsuo | 摺動部品用表面処理液及び摺動部品の表面処理方法及び摺動部品 |
JP2001214279A (ja) * | 2000-01-28 | 2001-08-07 | Kyocera Corp | 無電解ニッケルめっき浴 |
JP2003183845A (ja) * | 2001-10-24 | 2003-07-03 | Shipley Co Llc | 無電解めっき液用安定剤及びそれらの使用方法 |
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