Semiconductor device and method of manufacturing the same

An imaging device includes a first semiconductor element including at least one bump pad that has a concave shape. The at least one bump pad includes a first metal layer and a second metal layer on the first metal layer. The imaging device includes a second semiconductor element including at least o...

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Bibliographische Detailangaben
Hauptverfasser: Wakiyama, Satoru, Jyo, Naoki, Nakamura, Takuya, Hayashi, Toshihiko, Shimizu, Kan
Format: Patent
Sprache:eng
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Zusammenfassung:An imaging device includes a first semiconductor element including at least one bump pad that has a concave shape. The at least one bump pad includes a first metal layer and a second metal layer on the first metal layer. The imaging device includes a second semiconductor element including at least one electrode. The imaging device includes a microbump electrically connecting the at least one bump pad to the at least one electrode. The microbump includes a diffused portion of the second metal layer, and first semiconductor element or the second semiconductor element includes a pixel unit.