JP2008135719A - 半導体モジュール、半導体モジュールの製造方法および携帯機器 - Google Patents
半導体モジュール、半導体モジュールの製造方法および携帯機器 Download PDFInfo
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Abstract
【解決手段】表面S1に電極2aおよび保護膜3を有する半導体基板1がマトリクス状に形成された半導体ウエハを用意する。次に、半導体ウエハ(半導体基板1)の表面S1において、半導体基板1と、先端部に塑性領域4bを含む突起部4aが一体的に形成された銅板4z(金属板)との間に絶縁層7を挟持する。このように挟持した上で、プレス装置を用いて加圧成形して、半導体基板1、絶縁層7、及び銅板4zを一体化する。これにより、突起部4aが絶縁層7を貫通するとともに、先端部の塑性領域4bが電極2aとの接触面で塑性変形し、突起部4aと電極2aとが電気的に接続される。
【選択図】図5
Description
図1は本発明の第1実施形態に係る半導体モジュールの概略断面図である。図2は図1に示した半導体モジュールの電極部(図1のXで示した断面部分)を拡大した断面図である。図1および図2に基づいて第1実施形態の半導体モジュールについて説明する。
図3は先端部の塑性領域を含む突起部を有する銅板の形成方法を説明するための断面図である。図4は複数のスクライブラインにより区画された半導体基板がマトリクス状に配置された半導体ウエハを示す平面図である。図5および図6は図1に示した第1実施形態に係る半導体モジュールの製造プロセスを説明するための概略断面図である。次に、図3〜図6を参照して、第1実施形態に係る半導体モジュールの製造プロセスについて説明する。
図9は本発明の第2実施形態に係る半導体モジュールを説明するための概略断面図である。図10は図9に示した半導体モジュールの電極部(図9のXで示した断面部分)を拡大した断面図である。第1実施形態と異なる箇所は、圧着後における突起部4a(塑性領域4cを含む突起部4a)の形状であり、塑性領域4cが塑性変形する際に電極2aとの接触面に沿うように横方向にも広がって変形し、突起部4aの先端の形状が逆メサ構造となっていることである。ここで、逆メサ構造とは、突起部の塑性領域近傍の部分の径に比べ塑性領域部分で少なくともその径が大きくなっている状態を示す。
上述した第1実施形態では、RTA法により突起部4aに塑性領域4bを形成したが、本実施形態のようにして塑性領域4dを形成してもよい。以下に本実施形態における塑性
領域4dの形成方法を説明する。
次に、本発明の実施形態に係る半導体モジュールを備えた携帯機器について説明する。なお、携帯機器として携帯電話に搭載する例を示すが、たとえば、個人用携帯情報端末(PDA)、デジタルビデオカメラ(DVC)、及びデジタルスチルカメラ(DSC)といった電子機器であってもよい。
Claims (13)
- 絶縁層と、この絶縁層の一方の面に設けられた第1の電極と、
前記絶縁層の他方の面に設けられた第2の電極と、
前記第1の電極と一体的に設けられ、前記絶縁層を貫通して前記第2の電極と電気的に接続された突起部と、
を備え、
前記突起部はその先端部に塑性領域を有し、この塑性領域が塑性変形して前記第2の電極と接続していることを特徴とした半導体モジュール。 - 前記突起部と前記第2の電極とは同一の金属からなることを特徴とした請求項1に記載の半導体モジュール。
- 前記第1の電極と前記突起部とは圧延金属からなることを特徴とした請求項1または2に記載の半導体モジュール。
- 前記塑性領域は前記突起部の先端部に形成された微細凹凸からなることを特徴とする請求項1ないし3のいずれか1項に記載の半導体モジュール。
- 前記塑性領域は前記突起部よりも塑性変形しやすい金属からなることを特徴とした請求項1ないし4のいずれか1項に記載の半導体モジュール。
- 前記塑性領域は金からなることを特徴とした請求項5に記載の半導体モジュール。
- 前記突起部は前記塑性領域の塑性変形により先端部が逆メサ構造となっていることを特徴とした請求項1ないし6のいずれか1項に記載の半導体モジュール。
- 請求項1ないし7のいずれか1項に記載の半導体モジュールを搭載したことを特徴とする携帯機器。
- 表面に電極を有する半導体基板を準備する第1の工程と、
先端部に塑性領域を有する突起部が一体的に設けられた金属板を形成する第2の工程と、
前記金属板と前記半導体基板とを絶縁層を介して圧着し、前記突起部が前記絶縁層を貫通するとともに前記塑性領域を塑性変形させることにより前記突起部と前記電極とを電気的に接続する第3の工程と、
を備える、半導体モジュールの製造方法。 - 前記第2の工程において、板状金属の一方の表面に前記塑性領域としての微細凹凸を形成した後、前記一方の表面を選択的に除去して前記突起部を形成することを特徴とした請求項9に記載の半導体モジュールの製造方法。
- 前記第2の工程において、板状金属の一方の表面を選択的に除去して前記突起部を形成した後、前記突起部の先端部に前記塑性領域としての微細凹凸を形成することを特徴とした請求項9に記載の半導体モジュールの製造方法。
- 前記第2の工程において、前記塑性領域を電解めっき法もしくは無電解めっき法により金を用いて形成することを特徴とした請求項9に記載の半導体モジュールの製造方法。
- 前記第2の工程において、前記突起部の形状を先端部に近づくにつれて径を細くなるように形成し、
前記第3の工程において、前記突起部の先端の形状が逆メサ構造となるように前記塑性領域を塑性変形させていることを特徴とした請求項9ないし12のいずれか1項に記載の半導体モジュールの製造方法。
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JP5134899B2 (ja) * | 2007-09-26 | 2013-01-30 | 三洋電機株式会社 | 半導体モジュール、半導体モジュールの製造方法および携帯機器 |
EP2402985A4 (en) | 2009-02-27 | 2014-01-22 | Sony Chem & Inf Device Corp | METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE |
JP2010238996A (ja) * | 2009-03-31 | 2010-10-21 | Sanyo Electric Co Ltd | 半導体モジュールの製造方法 |
JP2010262992A (ja) * | 2009-04-30 | 2010-11-18 | Sanyo Electric Co Ltd | 半導体モジュールおよび携帯機器 |
WO2011136363A1 (ja) * | 2010-04-28 | 2011-11-03 | 三洋電機株式会社 | 回路装置の製造方法 |
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