SELF-POWERED PIEZOELECTRIC ENERGY HARVESTING MICROSYSTEM

A self-powered piezoelectric energy harvesting microsystem device has CMOS integrated circuit elements, contacts and interconnections formed at a proof mass portion of a die region of a semiconductor wafer. Piezoelectric energy harvesting unit components connected to the integrated circuit elements...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Gong Cuiling, Wang Jianbai Jenn
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A self-powered piezoelectric energy harvesting microsystem device has CMOS integrated circuit elements, contacts and interconnections formed at a proof mass portion of a die region of a semiconductor wafer. Piezoelectric energy harvesting unit components connected to the integrated circuit elements are formed at a thinned beam portion of the die region that connects the proof mass portion for vibration relative to a surrounding anchor frame portion. A battery provided on the proof mass portion connects to the integrated circuit elements. In a cantilever architectural example, the battery is advantageously located at a distal end of the proof mass portion, opposite the joinder with frame portion via the beam portion.