SEMICONDUCTOR DEVICE, METHOD FOR MOUNTING SEMICONDUCTOR DEVICE, AND MOUNTING STRUCTURE OF SEMICONDUCTOR DEVICE

A semiconductor device of the present invention includes a semiconductor substrate on which an electrode and a Cu bump are stacked, and on the electrode and the Cu bump, a metal bump layer is provided, in which (i) a solder layer via which the semiconductor device is bonded and electrically connecte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	OHNISHI YUYA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	A semiconductor device of the present invention includes a semiconductor substrate on which an electrode and a Cu bump are stacked, and on the electrode and the Cu bump, a metal bump layer is provided, in which (i) a solder layer via which the semiconductor device is bonded and electrically connected to the mounting substrate by metal bonding and (ii) a Cu layer, an intermetallic compound being formed by interdiffusion of the Cu layer and the solder layer are included. Hence, the present semiconductor device can be mounted with a high bonding strength while avoiding a decrease in mounting reliability, by flip chip mounting by means of metal bonding.