JP2009283484A - 半導体装置、半導体装置の実装方法、および半導体装置の実装構造 - Google Patents
半導体装置、半導体装置の実装方法、および半導体装置の実装構造 Download PDFInfo
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Abstract
【解決手段】金属接合による接合および電気的接続に使用される半田層100と、半田層100との相互拡散により金属間化合物を形成するためのCu層30と、を備えるメタルバンプ層が、半導体基板1に設けられた、電極2およびCuバンプ4に堆積されている。
【選択図】図1
Description
2 電極(半導体基板に設けられた電極)
4 Cuバンプ(半導体基板に設けられた電極)
5 実装基板
6 電極(実装基板に設けられた電極)
30〜39 Cu層(金属材料、金属材料の層、銅)
70 Cu3Sn層(金属間化合物)
71 Cu6Sn5層(金属間化合物)
100〜103、106〜109、111、112、114〜116、118、119
半田層(接合材料、接合材料の層、錫)
117、120〜122 金属間化合物層
Claims (13)
- 金属接合により、実装基板と、接合および電気的に接続される半導体装置であって、
上記接合および電気的接続に使用される接合材料と、該接合材料との相互拡散により金属間化合物を形成するための金属材料と、を備えるメタルバンプが、半導体基板に設けられた電極に堆積されていることを特徴とする半導体装置。 - 上記メタルバンプは、上記接合材料の層に上記金属材料の層が積層されたメタルバンプ層であることを特徴とする請求項1に記載の半導体装置。
- 上記メタルバンプ層が、2層以上5層以下で積層されていることを特徴とする請求項2に記載の半導体装置。
- 上記メタルバンプ層に、上記接合材料の層がさらに積層されていることを特徴とする請求項2または3に記載の半導体装置。
- 少なくとも1層の、上記接合材料の層の厚みは、3μm以上12μm以下であることを特徴とする請求項2〜4のいずれか1項に記載の半導体装置。
- 上記接合材料の層および上記金属材料の層の、少なくとも一方は、めっき法により形成された膜であることを特徴とする請求項2〜5のいずれか1項に記載の半導体装置。
- 複数の上記接合材料の層が、一体的に形成されていることを特徴とする請求項3または4に記載の半導体装置。
- 上記接合材料は錫であり、上記金属材料は銅であることを特徴とする請求項1〜7のいずれか1項に記載の半導体装置。
- 金属接合による接合および電気的接続に使用される接合材料と、該接合材料との相互拡散により金属間化合物を形成するための金属材料と、を備えるメタルバンプを、半導体基板に設けられた電極に堆積し、
上記金属材料で構成されていると共に実装基板に設けられた電極に、プリコート法またはめっき法により、上記接合材料を堆積し、
上記実装基板に設けられた電極に堆積された接合材料と、上記メタルバンプと、により上記金属接合を行うことを特徴とする半導体装置の実装方法。 - 金属接合による接合および電気的接続に使用される接合材料の層に、該接合材料の層との相互拡散により金属間化合物を形成するための金属材料の層を積層したメタルバンプ層を、半導体基板に設けられた電極に積層し、
上記金属材料で構成されていると共に実装基板に設けられた電極に、プリコート法またはめっき法により、上記接合材料を堆積し、
上記実装基板に設けられた電極に堆積された接合材料と、上記メタルバンプ層と、により上記金属接合を行うことを特徴とする半導体装置の実装方法。 - 金属接合による接合および電気的接続に使用される接合材料の層に、該接合材料の層との相互拡散により金属間化合物を形成するための金属材料の層を積層したメタルバンプ層を、半導体基板に設けられた電極に積層し、
上記メタルバンプ層に、上記接合材料の層をさらに積層し、
上記金属材料で構成されていると共に実装基板に設けられた電極と、上記メタルバンプ層に積層された接合材料の層と、により上記金属接合を行うことを特徴とする半導体装置の実装方法。 - 上記実装基板は、セラミック基板、有機基板、およびシリコンインターポーザ基板のいずれかであることを特徴とする請求項9〜11のいずれか1項に記載の半導体装置の実装方法。
- 請求項9〜12のいずれか1項に記載の半導体装置の実装方法により、上記実装基板と上記半導体装置とが実装されたことを特徴とする半導体装置の実装構造。
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