JP2021075785A - 無電解銅めっき及び不動態化の阻止 - Google Patents
無電解銅めっき及び不動態化の阻止 Download PDFInfo
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- 0 *C1N(*)*=NC1* Chemical compound *C1N(*)*=NC1* 0.000 description 2
- XWXMGTIHBYFTIE-UHFFFAOYSA-N Oc(cccc1)c1-c1nc2ccccc2[nH]1 Chemical compound Oc(cccc1)c1-c1nc2ccccc2[nH]1 XWXMGTIHBYFTIE-UHFFFAOYSA-N 0.000 description 1
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Abstract
【解決手段】銅を含有する基材上の無電解銅めっきの前に、選択されたイミダゾール化合物を含有する水性組成物を基材に適用する。選択されたイミダゾール化合物を含有する水性組成物は、基材上の銅の不動態化を阻止し、無電解銅めっきプロセスを改善する。
【選択図】なし
Description
a)銅を含む基材を提供することと、
b)基材の銅に触媒を適用することと、
c)イミダゾール化合物を含む水性組成物で、基材の触媒された銅を処理することであって、イミダゾール化合物が、式:
を有することと、
d)基材の処理された銅に、無電解銅めっき浴を適用することと、
e)無電解銅めっき浴で、基材の処理された銅上に、銅を無電解めっきすることと、
を含む方法に関する。
a)銅を含む基材を提供することと、
b)基材の銅に触媒を適用することと、
c)還元剤及びイミダゾール化合物を含む水性組成物で、基材の触媒された銅を処理することであって、イミダゾール化合物が、式:
を有することと、
d)基材の処理された銅に、無電解銅めっき浴を適用することと、
e)無電解銅めっき浴で、基材の処理された銅上に、銅を無電解めっきすることと、
を含む方法に関する。
a)銅を含む基材を提供することと、
b)基材の銅に触媒を適用することと、
c)基材の触媒された銅に、還元剤を適用することと、
d)イミダゾール化合物を含む水性組成物で、基材の触媒された銅を処理することであって、イミダゾール化合物が、式:
を有することと、
e)基材の処理された銅に、無電解銅めっき浴を適用することと、
f)無電解銅めっき浴で、基材の処理された銅上に、銅を無電解めっきすることと、
を含む方法に関する。
を有するイミダゾール化合物である。
を有する。
式:
式:
式:
式:
式:
式:
式:
式:
式:
銅の不動態化防止
不動態化防止添加剤の、酒石系無電解銅めっき浴で処理された銅張積層板(CCL)の表面に対する影響は、以下に開示されているプロセスフローでドリルされたフィーチャのない厚さ200μmの銅張積層板を処理することによって評価された。濃度範囲が0.5mg/L、2mg/L、及び5mg/Lの不動態化防止添加剤を含む還元剤浴を、還元剤浴中に不動態化防止添加剤を含まない対照(実施例1)で得られた結果と比較した。無電解銅めっきの開始は、特定の条件下で、不動態化防止添加剤の非存在下で観察された。
1.各CCLを、20体積%のCIRCUPOSIT(商標)Conditioner 8512アルカリコンディショナー溶液で、約45℃にて1.5分間処理した;
2.次いで、各CCLを、水道水で、室温にて30秒間すすいだ;
3.次いで、各CCLを、CIRCUPOSIT(商標)6520Aプレディップ溶液で、pH=2、約28℃にて30秒間処理した;
4.次いで、各CCLを、9〜9.5の触媒pHを達成するように、触媒が、十分な量の炭酸ナトリウム、水酸化ナトリウム又は硝酸で緩衝されている、イオン水性アルカリパラジウム触媒濃縮物である20体積%のCIRCUPOSIT(商標)6530触媒(DuPontから入手可能)中に約50℃で60秒間浸漬させた;
5.次いで、各CCLを、水道水で、室温にて30秒間すすいだ;
6.次いで、各CCLを、0.6g/Lのジメチルアミンボラン、7〜7.5のpH範囲の5g/Lのホウ酸、及び表1で示された不動態化防止添加剤のうちの1つを表1に示された濃度で含む水溶液中に、約34℃にて1分間浸漬させ、パラジウムイオンをパラジウム金属に還元し、同時に各CCLの銅を不動態化した;
7.次いで、各CCLを、水道水で、30秒間すすいだ;
8.次いで、各CCLを、表2のアルカリ無電解銅めっき浴に浸漬し、約34℃にて5分間銅めっきした。
銅の不動態化
還元剤浴に含まれる添加剤及び添加剤の量が表3に開示されたものであることを除いて、実施例1〜16で上記に開示された手順及び配合を繰り返した。
Claims (9)
- 無電解銅めっきの方法であって:
a)銅を含む基材を提供することと、
b)前記基材の前記銅に触媒を適用することと、
c)イミダゾール化合物を含む水性組成物で、前記基材の前記触媒された銅を処理することであって、前記イミダゾール化合物が、式:
を有することと、
d)前記基材の前記処理された銅に、無電解銅めっき浴を適用することと、
e)前記無電解銅めっき浴で、前記基材の前記処理された銅上に、銅を無電解めっきすることと、
を含む方法。 - 無電解銅めっきの方法であって:
a)銅を含む基材を提供することと、
b)前記基材の前記銅に触媒を適用することと、
c)還元剤及びイミダゾール化合物を含む水性組成物で、前記基材の前記触媒された銅を処理することであって、前記イミダゾール化合物が、式:
を有することと、
d)前記基材の前記処理された銅に、無電解銅めっき浴を適用することと、
e)前記無電解銅めっき浴で、前記基材の前記処理された銅上に、銅を無電解めっきすることと、
を含む方法。 - 前記触媒を適用する前に、前記銅を含む前記基材に、コンディショナーを適用することを更に含む、請求項2に記載の方法。
- 前記還元剤及び前記イミダゾール化合物を含む前記水性組成物で処理した後の前記触媒された銅を有する前記基材をすすぎ水溶液ですすぐことを更に含む、請求項2に記載の方法。
- 前記すすぎ水溶液が、式:
を有するイミダゾール化合物を含む、請求項4に記載の方法。 - 前記イミダゾール化合物が、0.1mg/L〜100mg/Lの濃度である、請求項2に記載の無電解銅めっきの方法。
- 前記水性組成物が、1つ以上の酸を更に含む、請求項2に記載の無電解銅めっきの方法。
- 前記イミダゾール化合物が、式:
を有する、請求項2に記載の無電解銅めっきの方法。 - 前記イミダゾール化合物が、2,2’−ビス(4,5−ジメチルイミダゾール)、2−グアニジノベンゾイミダゾール、2−(アミノメチル)ベンズイミダゾールジヒドロクロリド、2−(2−アミノフェニル)−1H−ベンズイミダゾール、2−(2−ヒドロキシフェニル)−1H−ベンズイミダゾール、及びこれらの混合物からなる群から選択される、請求項8に記載の無電解銅めっきの方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/679,373 US20210140052A1 (en) | 2019-11-11 | 2019-11-11 | Electroless copper plating and counteracting passivation |
US16/679,373 | 2019-11-11 |
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JP2021075785A true JP2021075785A (ja) | 2021-05-20 |
JP7012135B2 JP7012135B2 (ja) | 2022-01-27 |
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JP2020178245A Active JP7012135B2 (ja) | 2019-11-11 | 2020-10-23 | 無電解銅めっき及び不動態化の阻止 |
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US (1) | US20210140052A1 (ja) |
EP (1) | EP3819397A1 (ja) |
JP (1) | JP7012135B2 (ja) |
KR (1) | KR102515750B1 (ja) |
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WO2022092090A1 (ja) | 2020-10-29 | 2022-05-05 | 日東電工株式会社 | 粘着シート用樹脂および粘着シート |
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- 2019-11-11 US US16/679,373 patent/US20210140052A1/en not_active Abandoned
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- 2020-10-12 TW TW109135203A patent/TWI769549B/zh active
- 2020-10-15 CN CN202011101918.7A patent/CN112779524A/zh active Pending
- 2020-10-23 JP JP2020178245A patent/JP7012135B2/ja active Active
- 2020-10-26 EP EP20203894.9A patent/EP3819397A1/en not_active Withdrawn
- 2020-10-28 KR KR1020200141152A patent/KR102515750B1/ko active IP Right Grant
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JPH08269724A (ja) * | 1995-03-22 | 1996-10-15 | Macdermid Inc | 選択的めっき用組成物及び方法 |
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TWI769549B (zh) | 2022-07-01 |
US20210140052A1 (en) | 2021-05-13 |
JP7012135B2 (ja) | 2022-01-27 |
CN112779524A (zh) | 2021-05-11 |
KR102515750B1 (ko) | 2023-03-29 |
TW202118899A (zh) | 2021-05-16 |
EP3819397A1 (en) | 2021-05-12 |
KR20210056902A (ko) | 2021-05-20 |
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