ELASTIC WAVE DEVICE AND MANUFACTURING METHOD THEREFOR

An elastic wave device includes an interdigital transducer electrode and a wiring electrode made of metal and provided on a first main surface of a piezoelectric substrate. Via hole electrodes penetrate the piezoelectric substrate. Each via hole electrode is connected to an external connection termi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SEKIYA, Daisuke, KIKUCHI, Taku
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	An elastic wave device includes an interdigital transducer electrode and a wiring electrode made of metal and provided on a first main surface of a piezoelectric substrate. Via hole electrodes penetrate the piezoelectric substrate. Each via hole electrode is connected to an external connection terminal. A cover member defines a hollow space in which the interdigital transducer electrode is sealed, together with the first main surface of the piezoelectric substrate. A heat dissipating member is provided on the wiring electrode to extend from the wiring electrode toward the cover member and penetrate the cover member.