JP6976028B2 - 混合された合金フィラーを含む伝導性組成物 - Google Patents
混合された合金フィラーを含む伝導性組成物 Download PDFInfo
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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- H01B1/026—Alloys based on copper
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- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
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- 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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits by conductive adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0221—Insulating particles having an electrically conductive coating
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- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0263—Details about a collection of particles
- H05K2201/0272—Mixed conductive particles, i.e. using different conductive particles, e.g. differing in shape
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Description
本出願は米国特許法第119条の規定に基づき、2009年4月2日に出願した米国仮出願第61/166,015の優先権の利益を請求する。その全体の開示は本明細書中に参考として援用する。
本発明は金属組成物、その調製方法および用途に関する。より詳細には、本発明は混合された合金フィラーを利用する伝導性金属組成物に関する。
発明の背景
本発明は300℃以下の温度で加工できる冶金学的な組成物であって、冶金学的な成分選択が特異的である、金属間化合物(intermetallic)製品およびそれらの相互接続ネットワークも同様に特異的な組成物に関する。組成物は、熱力学的応力に高度耐性を持ち、熱的に安定したバルクと、インターフェイスの電気的および熱的抵抗を有する。組成物は、任意に鉛を含まず、さらに、接着体と周囲物質の用途特異的材料である有機化合物を含むことができる。
約10質量%から約60質量%の、反応性の低融点金属とキャリア金属との合金を含む第2の金属粒子、ここで該反応性の低融点金属は、高融点金属と反応して金属間化合物を形成することができる;
約25質量%から約75質量%の、少なくとも40質量%の反応性の低融点金属を含む第3の金属粒子;および
有機バインダ、を含む。
いくつかの態様では、反応性の低融点金属は、第2の金属粒子の約35質量%と約50質量%の間を構成し、たとえば第2の金属粒子の約40質量%であることができる。いくつかの態様で、反応性LMP金属は第3の金属粒子の少なくとも90質量%を構成する。
ある態様では、反応性金属はSnであり、キャリヤー金属はBiである。
“約”という本明細書に使用される用語は、“約”が付された数が、示された数字のプラスマイナス1−10%を含むことを意味する。たとえば「約」100℃は、状況に応じて、95−105℃、または99−101℃を意味する。
本発明は有機バインダ中に以下の3つのタイプの金属粒子を含む組成物を提供する:
高融点金属粒子、低融点金属合金粒子、たとえば低融点金属の元素状または富化された形態の、低融点金属を高率で含む粒子。ある実施態様では、組成物は以下の成分を含む:
(A)少なくとも1つのHMP金属(すなわち、高融点金属微粒子またはHMP金属微粒子)を含む第1の金属粒子の約30質量%から約70質量%;
(B)反応性LMP金属合金(すなわち、低融点金属合金粒子またはLMP金属合金粒子)を含む第2の金属粒子の約10質量%から約60質量%;および
(C)LMP金属(すなわち、低融点金属が富化されるか、または低融点金属の実質的に純粋な元素状の形態を含むことができる低融点の金属富化粒子またはLMP金属富化粒子)の少なくとも40質量%を含む第3の金属粒子成分の約25質量%から約75質量%。
さらに以下の非限定的な例を参照して本発明がさらに説明される。
本発明の先に説明された特徴を例示するために、二以上の異なる、相溶性の合金が混合されて組み合わされ、標準的でないかまたは「ブレンドされた」合金をその場(in situ)で形成した。少なくとも1つの金属合金粉末が溶融状態であり、そして、非溶融合金成分が溶融状態の成分に非常に可溶性であれば、合金粉末配合成分のすべてが希望の処理温度で溶融状態でなければならないというわけではない。例えば、伝導性組成物中のBiの潜在的に有害な特性を緩和する1つの方法は、Biの割合が実質的に低下されたSnとBiの合金を使うことである。そのような合金は一般的に利用可能でない。しかしながら、共晶のSn−Bi合金粉末、およびSnを支配的に含む合金は、容易に利用可能である。
***表1および以下において、有機バインダは、メチルテトラヒドロフタル酸無水物モノグリセリンエステル(1.35g);トリエタノールアミン(1.00g);ブチルカルビトール(2.96g)との50重量%のビスフェノールA溶液;アラルダイトMY721エポキシ樹脂(0.74g)、およびブチルカルビトール(0.2g)を含む。
二以上の異なる、相溶性合金が組み合わされた。以下に示す材料を一緒に混合することによって組成物を調製した:Biの約58質量%とSnの約42質量%を含むBi/Sn合金の約4.0g;実施例1で記載されたSAC305の約8.5g;Inの約58質量%とSnの約42質量%を含む共晶In/Sn合金の約4.0g;約30.0gのCu;および有機バインダの約5.0g。
様々な組成物は、以下の表3に示した量で化合物を混合することによって調製された。
追加組成物は、表6に示された量の化合物を混合することによって調製された。
さらなる追加の組成物は表9に示された量の化合物を混合することによって調製された。
従って、表5、8および11に示された抵抗値は、低融点合金とスズ富化合金の間の温度で処理される本発明の配合物がよく焼結されていることを示す。
Claims (1)
- 以下を含む粒子混合物組成物:
a) Cu、Ag、Al、Au、Pt、Pd、Be、Rh、Ni、Co、Fe、Moおよびそれらの組み合わせから選択される少なくとも1つの高融点金属を含む第1の金属粒子であって、組成物中の総金属成分の30質量%から70質量%を構成する第1の金属粒子;
b) Sn、Zn、Ga、In、Te、Hg、Tl、Sb、Se、Poおよびそれらの組み合わせから選択される反応性低融点金属と、Bi、In、Pb、Sbおよびそれらの組み合わせから選択されるキャリヤー金属の合金を含む第2の金属粒子であって、組成物中の総金属成分の10質量%から60質量%を構成する第2の金属粒子;
c) 少なくとも40質量%で該反応性低融点金属を含む第3の金属粒子であって、組成物中の総金属成分の25質量%から75質量%を構成する第3の金属粒子;および
d) 有機バインダ、を含み、
Biは組成物中の総金属成分の21質量%以下の量で存在し、
該選択された反応性低融点金属は該選択された高融点金属と反応して金属間化合物を形成することができ、
該選択された反応性低融点金属は該選択された高融点金属を金属間化合物に変換するに必要な量よりも過剰な量で存在する。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021126418A JP2021178366A (ja) | 2009-04-02 | 2021-08-02 | 混合された合金フィラーを含む伝導性組成物 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16601509P | 2009-04-02 | 2009-04-02 | |
| US61/166,015 | 2009-04-02 | ||
| JP2014059793A JP2014167915A (ja) | 2009-04-02 | 2014-03-24 | 混合された合金フィラーを含む伝導性組成物 |
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| JP2014059793A Division JP2014167915A (ja) | 2009-04-02 | 2014-03-24 | 混合された合金フィラーを含む伝導性組成物 |
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| Publication Number | Publication Date |
|---|---|
| JP2017039167A JP2017039167A (ja) | 2017-02-23 |
| JP6976028B2 true JP6976028B2 (ja) | 2021-12-01 |
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| JP2014059793A Pending JP2014167915A (ja) | 2009-04-02 | 2014-03-24 | 混合された合金フィラーを含む伝導性組成物 |
| JP2016158377A Active JP6976028B2 (ja) | 2009-04-02 | 2016-08-12 | 混合された合金フィラーを含む伝導性組成物 |
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| US (1) | US8221518B2 (ja) |
| JP (4) | JP2012523091A (ja) |
| KR (2) | KR102089843B1 (ja) |
| TW (1) | TWI555032B (ja) |
| WO (1) | WO2010114874A2 (ja) |
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- 2010-03-31 WO PCT/US2010/029330 patent/WO2010114874A2/en not_active Ceased
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| JP2017039167A (ja) | 2017-02-23 |
| WO2010114874A3 (en) | 2011-03-03 |
| TWI555032B (zh) | 2016-10-21 |
| KR20120032463A (ko) | 2012-04-05 |
| JP2012523091A (ja) | 2012-09-27 |
| JP2021178366A (ja) | 2021-11-18 |
| JP2014167915A (ja) | 2014-09-11 |
| KR20170059019A (ko) | 2017-05-29 |
| TW201108248A (en) | 2011-03-01 |
| WO2010114874A2 (en) | 2010-10-07 |
| KR102089843B1 (ko) | 2020-03-17 |
| US20100252616A1 (en) | 2010-10-07 |
| US8221518B2 (en) | 2012-07-17 |
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