JP2009246166A - 電子部品パッケージおよび基板ユニット並びにプリント配線板およびその製造方法 - Google Patents
電子部品パッケージおよび基板ユニット並びにプリント配線板およびその製造方法 Download PDFInfo
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- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
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- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/16227—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation the bump connector connecting to a bond pad of the item
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- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
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- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
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- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
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Abstract
【解決手段】電子部品パッケージはプリント配線板に実装される。パッケージ基板16の導電パッド28にははんだ片17が接合される。はんだ片17はプリント配線板14の導電パッド28に接合される。導電パッド28には凹凸形状の接触面が区画される。パッケージ基板16とプリント配線板14との間には熱膨張差が生じる。はんだ片17では剪断応力が発生する。電子部品の発熱および冷却が繰り返されると、熱膨張差に応じてはんだ片17にはクラック35が生じていく。クラック35は凹凸形状の接触面に沿って成長していく。クラック35の成長は凹凸形状の働きで蛇行する。クラック35の成長は阻害される。
【選択図】図4
Description
Claims (10)
- 複数の入出力端子を有する電子部品と、
第1の面で前記電子部品を受け止め、前記電子部品の入出力端子に接続される配線を有する配線基板と、
前記第1の面とは異なる前記配線基板の第2の面に形成されて前記配線に接続される複数の接続端子とを備え、
前記接続端子のうち、少なくとも1以上の接続端子には、はんだ材を受け止める凹凸形状を有する接触面が形成されることを特徴とする電子部品パッケージ。 - 前記電子部品パッケージにおいて、
前記接触面が有する前記凹凸形状は、前記第2の面に対して傾斜する傾斜面により形成されることを特徴とする請求項1記載の電子部品パッケージ。 - 前記電子部品パッケージにおいて、
前記接触面が有する前記凹凸形状は、突起により形成されることを特徴とする請求項1記載の電子部品パッケージ。 - 複数の入出力端子を有する電子部品と、
第1の面で前記電子部品を受け止め、前記電子部品の入出力端子に接続される配線を有する配線基板と、
前記第1の面とは異なる前記配線基板の第2の面に所定の配列で形成されて前記配線に接続される複数の接続端子とを備え、
前記接続端子のうち、前記配列の最外周に配置される第1の接続端子には、はんだ材を受け止める凹凸形状を有する接触面が形成され、前記第1の接続端子以外の第2の接続端子には、はんだ材を受け止める平坦な接触面が形成されることを特徴とする電子部品パッケージ。 - 複数の入出力端子を有する電子部品と、
第1の面で前記電子部品を受け止め、前記電子部品の入出力端子に接続される配線を有する配線基板と、
前記第1の面のとは異なる前記配線基板の第2の面に形成されて前記配線に接続され、多角形の輪郭で仕切られる配列に配置される複数の接続端子とを備え、
前記接続端子のうち、前記多角形の角に配置される第1の接続端子には、はんだ材を受け止める凹凸形状を有する接触面が形成され、前記第1の接続端子以外の第2の接続端子には、はんだ材を受け止める平坦な接触面が形成されることを特徴とする電子部品パッケージ。 - 複数の入出力端子を有する電子部品と、
第1の面で前記電子部品を受け止め、前記電子部品の入出力端子に接続される配線を有する配線基板と、
前記第1の面とは異なる前記配線基板の第2の面に形成されて前記配線に接続され、空間の周囲で一周にわたって1列に配列される複数の第1の接続端子と、
第1の接続端子の周囲に配列される第2の接続端子とを備え、
前記第1の接続端子には、はんだ材を受け止める凹凸形状を有する接触面が形成され、前記第2の接続端子には、はんだ材を受け止める平坦な接触面が形成されることを特徴とする電子部品パッケージ。 - 基板と、
前記基板の表面に形成されて、所定の配列で配置される複数の導電材製パッドとを備え、前記導電材製パッドのうち、少なくとも1以上の導電材製パッドには、はんだ材を受け止める凹凸形状を有する接触面が区画されることを特徴とするプリント配線板。 - 複数の入出力端子を有する電子部品と、
第1の面で前記電子部品を受け止め、前記電子部品の入出力端子に接続される配線を有する配線基板と、
前記第1の面とは異なる前記配線基板の第2の面に形成されて前記配線に接続される複数の第1接続端子と、
前記複数の第1接続端子にそれぞれ接合される複数のはんだ片と、個々の前記第1接続端子に対応して前記複数のはんだ片にそれぞれ接合される複数の第2接続端子を含む配線を有するプリント配線板とを備え、
前記複数の第1接続端子および対応する前記複数の第2接続端子のうち、少なくとも1以上の第1接続端子および第2接続端子の組には、はんだ材を受け止める凹凸形状を有する接触面がそれぞれ形成されることを特徴とする基板ユニット。 - 配線基板素材の表面に形成される導電材のべた膜上で所定の入出力用パッドに対応する位置に導電材の突起を形成する工程と、
前記べた膜上に、前記突起を覆いつつ、前記入出力用パッドを含む配線パターンを象ったレジスト膜を形成する工程と、
前記レジスト膜の周囲で前記導電材のべた膜を除去し、前記導電材の配線パターンを残存させる工程とを備えることを特徴とするプリント配線板の製造方法。 - 絶縁性基板の表面に所定の配列で配置される複数の導電材製パッドを有する配線基板を用意する工程と、
前記導電材製パッドの表面に導電ペーストを盛る工程と、
前記導電ペーストを固化する工程とを備えることを特徴とするプリント配線板の製造方法。
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JP2008091507A JP2009246166A (ja) | 2008-03-31 | 2008-03-31 | 電子部品パッケージおよび基板ユニット並びにプリント配線板およびその製造方法 |
US12/414,535 US8264850B2 (en) | 2008-03-31 | 2009-03-30 | Electronic device package with connection terminals including uneven contact surfaces |
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JP2008091507A JP2009246166A (ja) | 2008-03-31 | 2008-03-31 | 電子部品パッケージおよび基板ユニット並びにプリント配線板およびその製造方法 |
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US20090242258A1 (en) | 2009-10-01 |
US8264850B2 (en) | 2012-09-11 |
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