JP2018049735A - 導電性ペースト及びそれを用いた配線板 - Google Patents
導電性ペースト及びそれを用いた配線板 Download PDFInfo
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Abstract
Description
本実施形態に係る導電性ペーストは、アミノ基を含有する有機化合物で保護され、平均粒子径が30nm〜400nmである金属ナノ粒子と、高級脂肪酸で保護され、平均粒子径が1μm〜5μmである金属粒子とを含有している。
本実施形態に係る配線板は、上述の導電性ペーストより得られる導体を備えている。上述のように、本実施形態の導電性ペーストより得られる導体は、膜厚が30μm以上であり、かつ、比抵抗が5.0×10−6Ω・cm以下である。そのため、流れる電流量を高めることができ、得られる配線板を自動車用として好適に用いることができる。
まず、表1乃至表3に示すように、メディアン径が30nm、70nm、150nm、240nm、310nm、600nmである銀ナノ粒子と、n−ヘキシルアミン又はn−ブチルアミンとを混合することにより、アルキルアミンで保護された銀ナノ粒子を得た。なお、銀ナノ粒子とn−ヘキシルアミン又はn−ブチルアミンとの質量比は、1:1とした。また、メディアン径が310nmである銀ナノ粒子と、n−ヘキシルアミン及びn−ブチルアミンとを混合することにより、アルキルアミンで保護された銀ナノ粒子を得た。なお、銀ナノ粒子とn−ヘキシルアミンとn−ブチルアミンとの質量比は、1:0.5:0.5とした。
・テキサノール(2,2,4-トリメチルペンタン-1,3-ジオールモノイソブチラート) イーストマンケミカル社製
・ターピネオール(2-(4-メチルシクロヘキサ-3-エニル)プロパン-2-オール) 米山薬品工業株式会社製
・シクロヘキサン 出光興産株式会社製
・メチルエチルケトン 丸善石油化学株式会社製
(樹脂成分)
・エチルセルロース ダウ・ケミカル・カンパニー製、エトセル(登録商標)STD10
・エポキシ樹脂 三菱化学株式会社製、jER(登録商標)主剤828/硬化剤ST11
・ウレタン樹脂 荒川化学工業株式会社製、ユリアーノ(登録商標)
上述のようにして得られた実施例1〜12及び比較例1〜5の導電性ペーストを焼成して得られた導体の膜厚及び比抵抗、並びに導電性ペーストの粘度及び塗布した際の外観を下記のように評価した。評価結果を表1乃至表3に合わせて示す。
導体の膜厚は、日本工業規格JIS H8501(めっきの厚さ試験方法)を参考に、触針走査法により測定を行った。なお、装置は、接触式膜厚測定器(KLA Tencor社製Alpha-Step D-500)を用いた。
導体の比抵抗は、JIS K7194(導電性プラスチックの4探針法による抵抗率試験方法)を参考に測定を行った。装置は、4探針抵抗測定器(エヌピイエス株式会社製 抵抗率測定器Sigma-5+)を用いた。
導電性ペーストの粘度は、JIS K5600−2−3(塗料一般試験方法−第2部:塗料の性状・安定性−第3節:粘度(コーン・プレート粘度計法))を参考に測定を行った。装置は、回転式粘度計(HAKKE社製 レオメータRS100-CS)を用いた。
上述の導体の膜厚を測定する際、スクリーン印刷後において、導電性ペーストに擦れ等が無く、均一に塗布されているか否かを目視で確認した。そして、導電性ペーストの擦れが無く、均一に塗布されている場合を「○」と評価した。
Claims (7)
- アミノ基を含有する有機化合物で保護され、平均粒子径が30nm〜400nmである金属ナノ粒子と、
高級脂肪酸で保護され、平均粒子径が1μm〜5μmである金属粒子と、
有機溶剤と、
樹脂成分と、
を含有する導電性ペーストであって、
前記導電性ペーストを焼成してなる導体は、膜厚が30μm以上であり、かつ、比抵抗が5.0×10−6Ω・cm以下である、導電性ペースト。 - 前記有機化合物は、炭素総数が4〜16の直鎖状又は分岐状アルキル基である脂肪族炭化水素基と、一つ又は二つのアミノ基とを有する脂肪族炭化水素アミンである、請求項1に記載の導電性ペースト。
- 前記高級脂肪酸は、炭素総数が12〜24である飽和脂肪酸及び不飽和脂肪酸の少なくとも一方である、請求項1又は2に記載の導電性ペースト。
- 前記金属ナノ粒子の平均粒子径が70nm〜310nmであり、前記金属粒子の平均粒子径が1μm〜3μmである、請求項1乃至3のいずれか一項に記載の導電性ペースト。
- 前記有機溶剤は、炭素総数が8〜16であり、ヒドロキシル基を有し、さらに沸点が280℃以下である、請求項1乃至4のいずれか一項に記載の導電性ペースト。
- 前記樹脂成分は熱可塑性樹脂からなる、請求項1乃至5のいずれか一項に記載の導電性ペースト。
- 請求項1乃至6のいずれか一項に記載の導電性ペーストより得られる導体を備える配線板。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016184242A JP6574746B2 (ja) | 2016-09-21 | 2016-09-21 | 導電性ペースト及びそれを用いた配線板 |
PCT/JP2017/021608 WO2018055848A1 (ja) | 2016-09-21 | 2017-06-12 | 導電性ペースト及びそれを用いた配線板 |
DE112017004749.8T DE112017004749T5 (de) | 2016-09-21 | 2017-06-12 | Elektrisch leitfähige Paste und Leiterplatte damit |
CN201780052618.4A CN109643590B (zh) | 2016-09-21 | 2017-06-12 | 导电性涂胶和使用该导电性涂胶的布线板 |
US16/284,659 US20190185684A1 (en) | 2016-08-21 | 2019-02-25 | Electrically conductive paste and wiring board using the same |
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Cited By (2)
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WO2020262119A1 (ja) * | 2019-06-27 | 2020-12-30 | Dowaエレクトロニクス株式会社 | 銀粉およびその製造方法 |
US20210238442A1 (en) * | 2020-02-04 | 2021-08-05 | Yazaki Corporation | Printed wiring board, printed circuit board, and method of manufacturing printed wiring board |
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JP7156831B2 (ja) * | 2017-09-20 | 2022-10-19 | 矢崎総業株式会社 | 導電性組成物及びそれを用いた配線板 |
WO2019058727A1 (ja) * | 2017-09-20 | 2019-03-28 | 矢崎総業株式会社 | 導電性組成物及びそれを用いた配線板 |
WO2021025003A1 (ja) * | 2019-08-07 | 2021-02-11 | 株式会社ダイセル | 接合性導体ペースト |
FR3110581B1 (fr) * | 2020-05-20 | 2023-05-19 | Valerie Bensoussan | Procédé d’obtention d’un matériau polymérique incorporant des particules métalliques |
US11932771B2 (en) * | 2020-09-18 | 2024-03-19 | Namics Corporation | Stretchable conductive paste and film |
CN114456516A (zh) * | 2022-01-24 | 2022-05-10 | 深圳市红旗电工科技有限公司 | 一种网络组合线缆及其制备工艺 |
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Also Published As
Publication number | Publication date |
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CN109643590A (zh) | 2019-04-16 |
WO2018055848A1 (ja) | 2018-03-29 |
JP6574746B2 (ja) | 2019-09-11 |
CN109643590B (zh) | 2020-06-23 |
DE112017004749T5 (de) | 2019-06-27 |
US20190185684A1 (en) | 2019-06-20 |
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