JP6189886B2 - はんだ付け可能な導電性ポリマー厚膜組成物 - Google Patents
はんだ付け可能な導電性ポリマー厚膜組成物 Download PDFInfo
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Description
有機ビヒクルは、導電性の成分を基板に適用する媒体を提供する。有機ビヒクルは、所望の粘度及びレオロジーをポリマー組成物に付与し、それにより、既知の適用方法を介して組成物が基板に適用され、種々の所望のパターンが形成される。導電性PTF組成物に使われる有機ビヒクルは通常、少なくとも1つの樹脂及び少なくとも1つの溶剤を含む。有機ビヒクルは、その他の添加剤も任意に含んでよい。
PTF組成物は、導電性成分をさらに含む。導電性の成分は、当業者に既知の例えば、導電性の金属粒子などのいずれの導電性粒子を含んでもよい。当該技術分野において既知の全ての金属粒子、及び本発明の状況において適切であると考えられる金属粒子をPTF組成物中の金属粒子として採用できる。好ましい金属粒子は、高伝導率を示し、鉛系の及び/又は鉛フリーはんだを使ってはんだ付け可能なものである。好ましい金属粒子は、元素金属、合金、金属誘導体、少なくとも2つの金属の混合物、少なくとも2つの合金の混合物、又は少なくとも1つの金属と少なくとも1つの合金との混合物である。
導電性PTF組成物を形成するために、当該技術分野において既知の任意の方法を使用して有機ビヒクルの成分を混合し、導電性PTF組成物が調製される。該方法は、好ましくは、均質に分散した組成物を生ずる。一実施形態では、導電性の金属粒子が有機ビヒクルに加えられ、当該技術分野において既知の任意の方法、例えば、ミキサーを使って混合され、好ましくはその後粉砕されて、例えば、三本ロールミルを通して分散された均一な組成物が形成される。
本発明の導電性PTF組成物は、鉛フリーはんだ付け技術に有用であるが、鉛系のはんだ付けにも同様に使用可能である。
10種のはんだ付け可能なPTF組成物を下表1に記述の材料を使って調製した。各組成物のフェノール樹脂は、Vaccum29112(Durez Corporation(Addison,Texas)から市販)、溶剤は市販の酢酸ブチルカルビトールを使用した。全ての量は、合計PTF組成物の重量パーセントで示される。各PTF組成物には、種々の中央粒子径d50及び比表面積(SSA)を有する銀粉末又は銀フレークを含めた。
導電性PTF組成物を下表3に記載の出発材料を使って調製した。使用成分は次の通り:フェノール樹脂及び溶剤#1は、実施例1で使用したものと同じとした;ポリイミド樹脂は、Alfa Aesar(Ward Hill,Massachusetts)で市販の14%のポリイミド樹脂と、26%のガンマブチロラクトンと、60%のテトラメチレンスルホンの混合物とした;エポキシは、Epoxy Technology,Inc.(Billerica,Massachusetts)から市販されている未充填エポキシEpo−Tek(登録商標)H61−110とした;溶剤#2は、ガンマブチロラクトンとした;硬化剤は、三フッ化ホウ素・モノエチルアミンとした;希釈剤は、Emerald Performance Materials(Moorestown,New Jersey)から市販されているErisys(商標)GE−21とした;及びチキソトロープ剤は、BYK Additives,Inc.(Austin,Texas)から市販されているBYK(登録商標)−410とした。銀フレーク及びポリイミド/エポキシ樹脂を含む対照を配合し、また、全ての例示組成物を、銀粉末及び銀フレーク、ならびにフェノール樹脂を組み合わせて配合した。全ての量は、合計PTF組成物の重量パーセントで示される。
Claims (18)
- 鉛フリーはんだに用いる導電性ポリマー厚膜組成物であって、
前記組成物の100%合計重量をベースに、50〜90wt%の銀粉と1〜30wt%の少なくとも1m 2 /gで、かつ、3m 2 /g以下の比表面積を有する銀フレークを含む金属粒子と、
少なくとも1つのフェノール樹脂及び溶剤を含む有機ビヒクルと
を含む、組成物。 - 前記金属粒子が、少なくとも0.1μmで、かつ、10μm以下の中央粒子径d50を有する請求項1に記載の導電性ポリマー厚膜組成物。
- 前記金属粒子が、少なくとも、0.01m2/gで、かつ、10m2/g以下の比表面積を有する請求項1又は2に記載の導電性ポリマー厚膜組成物。
- 前記組成物が、前記組成物の100%合計重量をベースに、少なくとも60wt%の金属粒子で、かつ、95wt%以下の金属粒子を含む請求項1〜3のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記金属粒子が、銀、金、白金、ニッケル、銅、それらの合金類、及びこれらの任意の組み合わせを含む請求項1〜4のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記金属粒子が、少なくとも1つのタイプの銀粉末及び少なくとも1つのタイプの銀フレークを含む請求項1〜5のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記少なくとも1つのタイプの銀粉末が、少なくとも2μmで、かつ、4μm以下の中央粒子径d50と、少なくとも0.1m2/gで、かつ、0.5m2/g以下の比表面積とを有する請求項6に記載の導電性ポリマー厚膜組成物。
- 前記少なくとも1つのタイプの銀フレークが、少なくとも2μmで、かつ、4μm以下の中央粒子径d50と、少なくとも1m2/gで、かつ、3m2/g以下の比表面積とを有する請求項6又は7に記載の導電性ポリマー厚膜組成物。
- 前記組成物が、前記組成物の100%合計重量をベースに、少なくとも50wt%の銀粉末で、かつ、90wt%以下の銀粉末を含む請求項1〜8のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記組成物が、前記組成物の100%合計重量をベースに、少なくとも1wt%の銀フレークで、かつ、30wt%以下の銀フレークを含む請求項1〜9のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記組成物が、前記組成物の100%合計重量をベースに、少なくとも0.1wt%のフェノール樹脂で、かつ、40wt%以下のフェノール樹脂を含む請求項1〜10のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記組成物が、前記組成物の100%合計重量をベースに、少なくとも0.1wt%の溶剤で、かつ、40wt%以下の溶剤を含む請求項1〜11のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 前記有機ビヒクルが、チキソトロープ剤をさらに含む請求項1〜12のいずれか1項に記載の導電性ポリマー厚膜組成物。
- 導電性ポリマーにはんだ付けする方法であって、
少なくとも1つの基板の表面に、導電性ポリマー厚膜組成物を適用するステップであって、前記導電性ポリマー厚膜組成物が、
前記組成物の100%合計重量をベースに、50〜90wt%の銀粉と1〜30wt
%の少なくとも1m 2 /gで、かつ、3m 2 /g以下の比表面積を有する銀フレークを含む金属粒子と、
少なくとも1つのフェノール樹脂及び溶剤を含む有機ビヒクルと
を含むステップと、
前記ポリマー厚膜組成物を硬化して硬化膜を形成するステップと、
鉛フリーはんだを使って前記硬化膜の露出表面にはんだ付けするステップと
を含む、方法。 - 前記硬化が、少なくとも100℃で、かつ、200℃以下の温度で行われる請求項14に記載の方法。
- 前記はんだ付けが、少なくとも230℃で、かつ、250℃以下の温度で行われる請求項14に記載の方法。
- 前記硬化膜が、少なくとも15ミクロンの厚さを有する請求項14又は15に記載の方法。
- 少なくとも1つの表面を有する基板と、
前記少なくとも1つの基板の表面に適用された硬化ポリマー膜と
を含み、前記硬化ポリマー膜が、
前記組成物の100%合計重量をベースに、50〜90wt%の銀粉と1〜30wt%の少なくとも1m 2 /gで、かつ、3m 2 /g以下の比表面積を有する銀フレークを含む金属粒子と、
少なくとも1つのフェノール樹脂及び溶剤を含む有機ビヒクルと
を含む、導電性ポリマー厚膜組成物から形成される物品。
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US201461947643P | 2014-03-04 | 2014-03-04 | |
US61/947,643 | 2014-03-04 | ||
EP14000869.9A EP2918371A1 (en) | 2014-03-11 | 2014-03-11 | Solderable conductive polymer thick film composition |
EP14000869.9 | 2014-03-11 |
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JP6189886B2 true JP6189886B2 (ja) | 2017-08-30 |
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US (1) | US9986650B2 (ja) |
EP (1) | EP2918371A1 (ja) |
JP (1) | JP6189886B2 (ja) |
KR (1) | KR20150104053A (ja) |
CN (1) | CN105176174A (ja) |
TW (1) | TWI555034B (ja) |
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WO2018018136A1 (en) | 2016-07-28 | 2018-02-01 | National Research Council Of Canada | Copper ink and conductive solderable copper traces produced therefrom |
US20180063967A1 (en) * | 2016-08-26 | 2018-03-01 | Tyco Electronics Corporation | Interconnections Formed with Conductive Traces Applied onto Substrates Having Low Softening Temperatures |
EP3296054B1 (de) * | 2016-09-19 | 2020-12-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur herstellung eines mikrobearbeiteten werkstücks mittels laserabtrag |
TW201842087A (zh) | 2017-02-08 | 2018-12-01 | 加拿大國家研究委員會 | 具改良之熱穩定性的分子油墨 |
TWI842668B (zh) | 2017-02-08 | 2024-05-21 | 加拿大國家研究委員會 | 具低黏度與低加工溫度之銀分子油墨 |
TW201842088A (zh) | 2017-02-08 | 2018-12-01 | 加拿大國家研究委員會 | 可印刷分子油墨 |
KR102115188B1 (ko) | 2018-06-22 | 2020-05-26 | 엘지전자 주식회사 | 반도체 발광소자를 이용한 디스플레이 장치 |
CN113932699A (zh) * | 2021-09-23 | 2022-01-14 | 浦江荣达量具有限公司 | 一种数显卡尺容栅传感器制造工艺 |
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JPS5842651A (ja) * | 1981-09-07 | 1983-03-12 | Toshiba Corp | 導電性ペ−スト |
US4595606A (en) * | 1984-07-18 | 1986-06-17 | Rohm And Haas Company | Solderable conductive compositions having high adhesive strength |
JPS62164757A (ja) | 1986-01-14 | 1987-07-21 | Shinto Paint Co Ltd | 導電性回路を形成する方法 |
US5068150A (en) * | 1988-02-01 | 1991-11-26 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Copper powder for electroconductive paints and electroconductive paint compositions |
JPH0753843B2 (ja) * | 1988-07-05 | 1995-06-07 | タツタ電線株式会社 | 半田付可能な導電塗料 |
JP2619289B2 (ja) * | 1989-06-20 | 1997-06-11 | 三井金属鉱業株式会社 | 銅導電性組成物 |
JP2514516B2 (ja) * | 1992-02-05 | 1996-07-10 | タツタ電線株式会社 | 半田付け可能な導電性ペ―スト |
JP4266840B2 (ja) | 2004-01-29 | 2009-05-20 | 三洋電機株式会社 | 太陽電池モジュール |
JP2011524068A (ja) * | 2008-05-28 | 2011-08-25 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 光電池の導体に使用されるサブミクロン粒子を含む組成物 |
EP2638990B1 (en) * | 2010-11-08 | 2019-05-08 | Namics Corporation | Manufacturing method for metal particles |
US20120119163A1 (en) | 2010-11-17 | 2012-05-17 | E. I. Du Pont De Nemours And Company | Solderable polymer thick film silver electrode composition for use in thin-film photovoltaic cells and other applications |
US8704087B2 (en) * | 2011-06-01 | 2014-04-22 | E I Du Pont De Nemours And Company | Solderable polymer thick film conductive electrode composition for use in thin-film photovoltaic cells and other applications |
US8771554B2 (en) * | 2011-10-20 | 2014-07-08 | E I Du Pont De Nemours And Company | Thick film silver paste containing Al2O3 and lead-tellurium—oxide and its use in the manufacture of semiconductor devices |
US9023254B2 (en) * | 2011-10-20 | 2015-05-05 | E I Du Pont De Nemours And Company | Thick film silver paste and its use in the manufacture of semiconductor devices |
US20130160830A1 (en) * | 2011-12-21 | 2013-06-27 | E.I. Du Pont De Nemours And Company | Thick-film conductive paste composition |
US8956557B2 (en) * | 2012-01-24 | 2015-02-17 | E I Du Pont De Nemours And Company | Thick film silver paste containing copper and lead—tellurium—oxide and its use in the manufacture of semiconductor devices |
EP2820656A1 (en) * | 2012-02-27 | 2015-01-07 | E. I. Du Pont de Nemours and Company | Silver paste and use thereof in the production of solar cells |
US20140018482A1 (en) * | 2012-03-26 | 2014-01-16 | E I Du Pont De Nemours And Company | Polymer thick film solder alloy/metal conductor compositions |
US9034417B2 (en) * | 2012-08-20 | 2015-05-19 | E I Du Pont De Nemours And Company | Photonic sintering of polymer thick film conductor compositions |
US9236161B2 (en) * | 2012-09-06 | 2016-01-12 | E I Du Pont De Nemours And Company | Conductive paste composition and semiconductor devices made therewith |
JP5859949B2 (ja) * | 2012-09-27 | 2016-02-16 | 三ツ星ベルト株式会社 | 導電性組成物 |
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JP2015168825A (ja) | 2015-09-28 |
US9986650B2 (en) | 2018-05-29 |
EP2918371A1 (en) | 2015-09-16 |
CN105176174A (zh) | 2015-12-23 |
TW201541468A (zh) | 2015-11-01 |
US20150257279A1 (en) | 2015-09-10 |
TWI555034B (zh) | 2016-10-21 |
KR20150104053A (ko) | 2015-09-14 |
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