JP5773451B2 - 無鉛高温用化合物 - Google Patents
無鉛高温用化合物 Download PDFInfo
- Publication number
- JP5773451B2 JP5773451B2 JP2012520948A JP2012520948A JP5773451B2 JP 5773451 B2 JP5773451 B2 JP 5773451B2 JP 2012520948 A JP2012520948 A JP 2012520948A JP 2012520948 A JP2012520948 A JP 2012520948A JP 5773451 B2 JP5773451 B2 JP 5773451B2
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- Prior art keywords
- substrate
- copper
- paste solder
- electronic component
- weight
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
- B23K35/025—Pastes, creams, slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B23K35/262—Sn as the principal constituent
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
Description
a)接合するべき第1の表面を有する電子部品および接合するべき第2の表面を有する基板を準備する工程と;
b)ペーストはんだを、接合するべき表面のうちの少なくとも1つに付与する工程と;
c)接合するべき第1の電子部品表面および接合するべき第2の基板表面が、当該ペーストはんだによって互いに接触するように、当該電子部品および基板を配置する工程と;
d)この電子部品と基板との間に強固に結合された接合を生成するために、工程c)からの構成物をはんだ付けする工程と、
を含み、当該ペーストはんだは、(i)10〜30重量%の銅粒子、(ii)60〜80重量%の、スズおよびスズ−銅合金からなる群から選択される少なくとも1つの物質の粒子、ならびに(iii)3〜30重量%の、はんだフラックスを含有し、当該銅粒子ならびにスズおよびスズ−銅合金からなる群から選択される物質から作製される粒子の平均粒径は15μm以下であり、かつペーストはんだの付与された層の厚さは少なくとも20μmである、方法によって満足される。
(i)10〜30重量%の銅粒子と、
(ii)60〜80重量%の、スズおよびスズ−銅合金からなる群から選択される少なくとも1つの物質の粒子と、
(iii)3〜30重量%のはんだフラックスと、
を含有し、この銅粒子およびスズおよびスズ−銅合金からなる群から選択される少なくとも1つの物質から作製された粒子の平均粒径は15μm以下である、ペーストはんだの使用を伴う。
74重量%の、5〜15μmの範囲にある平均粒径を有するスズ−銅合金(SnCu0.7)の粒子、15重量%の、5μmまでの平均粒径を有する銅粒子、および11重量%の、コロホニーに基づくはんだフラックス系を含有するペーストはんだを調製した。
87重量%の、5〜15μmの範囲にある平均粒径を有するスズ−銅合金(SnCu0.7)の粒子、および13重量%の、コロホニーに基づくはんだフラックス系を含有するペーストはんだを調製した。
Claims (7)
- 基板への、電子部品の強固に結合された接合のための方法であって、
a)接合するべき第1の表面を有する電子部品および接合するべき第2の表面を有する基板を準備する工程と;
b)ペーストはんだを、接合するべき前記表面のうちの少なくとも1つに付与する工程と;
c)接合するべき前記第1の電子部品表面および接合するべき前記第2の基板表面が、前記ペーストはんだを介して互いに接触するように、前記電子部品および基板を配置する工程と;
d)前記電子部品と前記基板との間に強固に結合された接合を生成するために、工程c)からの構成物をはんだ付けする工程と
を含み、
前記ペーストはんだは、(i)99.9%以上の純度の銅からなる10〜30重量%の銅粒子、(ii)60〜80重量%のスズ−銅合金の粒子、ならびに(iii)3〜30重量%の、はんだフラックスを含有し、
前記銅粒子およびスズ−銅合金から作製された前記粒子の平均粒径は15μm以下であり、
ペーストはんだの付与された層の厚さは少なくとも20μmであることを特徴とする、方法。 - 工程d)からの前記構成物は、さらなる工程e)において、少なくとも40〜217℃の温度で、1分間〜24時間の範囲の時間、熱処理にかけられる、請求項1に記載の方法。
- 前記基板は、プリント配線基板、リードフレーム、およびダイレクトボンドカッパー基板からなる群から選択される、請求項1または請求項2に記載の方法。
- 前記スズ−銅合金の銅分率は0.3〜5重量%の範囲にある、請求項1から請求項3のいずれか1項に記載の方法。
- ペーストはんだであって、
(i)99.9%以上の純度の銅からなる10〜30重量%の銅粒子と、
(ii)60〜80重量%のスズ−銅合金の粒子と、
(iii)3〜30重量%のはんだフラックスと、
を含み、
前記銅粒子およびスズ−銅合金から作製された前記粒子の平均粒径は15μm以下であることを特徴とする、ペーストはんだ。 - 前記スズ−銅合金の銅分率は0.3〜5重量%の範囲にある、請求項5に記載のペーストはんだ。
- 電子部品と、基板と、前記電子部品および前記基板を、強固に結合された態様で接合する介在する、請求項5又は6のペーストはんだからなる接触層とを含む構成物であって、前記接触層は、共晶相分率および金属間相分率を含み、前記共晶相分率は、共晶相および金属間相の総重量に対して5〜50重量%の範囲にあることを特徴とする、構成物。
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| DE102009034483.7 | 2009-07-22 | ||
| DE102009034483A DE102009034483A1 (de) | 2009-07-22 | 2009-07-22 | Bleifreie Hochtemperaturverbindung für die AVT in der Elektronik |
| PCT/EP2010/004447 WO2011009597A1 (de) | 2009-07-22 | 2010-07-21 | Bleifreie hochtemperaturverbindung |
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| EP (1) | EP2456589B1 (ja) |
| JP (1) | JP5773451B2 (ja) |
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| DE102011083931A1 (de) * | 2011-09-30 | 2013-04-04 | Robert Bosch Gmbh | Schichtverbund aus einem elektronischen Substrat und einer Schichtanordnung umfassend ein Reaktionslot |
| EP2874780B1 (en) * | 2012-07-18 | 2019-05-15 | Lumileds Holding B.V. | Method of soldering an electronic component with a high lateral accuracy |
| US8872315B2 (en) * | 2012-08-09 | 2014-10-28 | Infineon Technologies Ag | Electronic device and method of fabricating an electronic device |
| CN105307812B (zh) | 2013-04-09 | 2018-03-27 | 千住金属工业株式会社 | 焊膏 |
| EP2886244A1 (de) * | 2013-12-17 | 2015-06-24 | Heraeus Deutschland GmbH & Co. KG | Verfahren zur Befestigung eines Bauteils auf einem Substrat |
| US10456870B2 (en) * | 2014-08-27 | 2019-10-29 | Heraeus Deutschland GmbH & Co. KG | Method for producing a soldered connection |
| US10456871B2 (en) | 2014-08-27 | 2019-10-29 | Heraeus Deutschland GmbH & Co. KG | Solder paste |
| CN104588906A (zh) * | 2014-11-26 | 2015-05-06 | 东北大学 | 一种Sn-Cu高温无铅焊膏及其制备方法和使用方法 |
| CN105290651B (zh) * | 2015-12-02 | 2017-11-10 | 苏建林 | 一种环保抗菌助焊剂及其制备方法 |
| WO2020131360A1 (en) | 2018-12-17 | 2020-06-25 | Heraeus Precious Metals North America Conshohocken Llc | Process for forming an electric heater |
| CN112775580A (zh) * | 2019-11-07 | 2021-05-11 | 罗伯特·博世有限公司 | 焊料、基板组件及其装配方法 |
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| US20050029666A1 (en) * | 2001-08-31 | 2005-02-10 | Yasutoshi Kurihara | Semiconductor device structural body and electronic device |
| WO2006075459A1 (ja) * | 2005-01-11 | 2006-07-20 | Murata Manufacturing Co., Ltd | はんだペースト、及び電子装置 |
| EP3590653B1 (en) * | 2005-08-12 | 2023-10-18 | Aptiv Technologies Limited | Solder composition |
| CN1799756A (zh) * | 2006-01-12 | 2006-07-12 | 上海大学 | 一种新型Sn-Co-Cu三元系无铅焊料 |
| US20070205253A1 (en) * | 2006-03-06 | 2007-09-06 | Infineon Technologies Ag | Method for diffusion soldering |
| KR101233926B1 (ko) * | 2006-04-26 | 2013-02-15 | 센주긴조쿠고교 가부시키가이샤 | 솔더 페이스트 |
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| CN102470472B (zh) | 2017-08-25 |
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| WO2011009597A1 (de) | 2011-01-27 |
| SG177546A1 (en) | 2012-03-29 |
| DE102009034483A1 (de) | 2011-01-27 |
| EP2456589B1 (de) | 2016-05-18 |
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| CN102470472A (zh) | 2012-05-23 |
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