BGA semiconductor device having a dummy bump

A BGA semiconductor device includes a semiconductor package and a mounting board mounting thereon the semiconductor package, wherein an array of signal electrodes of the semiconductor package and an array of signal electrodes of the mounting board are coupled together via signal bumps. The BGA semic...

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Bibliographische Detailangaben
Hauptverfasser: Watanabe, Yuji, Tanie, Hisashi, Hosokawa, Koji, Katagiri, Mitsuaki, Anjo, Ichiro
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A BGA semiconductor device includes a semiconductor package and a mounting board mounting thereon the semiconductor package, wherein an array of signal electrodes of the semiconductor package and an array of signal electrodes of the mounting board are coupled together via signal bumps. The BGA semiconductor device also includes a dummy bump, which reinforces the bending strength of the BGA semiconductor device and is broken by a shearing force caused by thermal expansion to alleviate the stress for the signal bumps.