Piezoelectric accelerometer with wake function

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United States of America Patent

PATENT NO 11892466
APP PUB NO 20220317148A1
SERIAL NO

17807310

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A sensor device that senses proper acceleration. The sensor device includes a substrate, a spacer layer supported over a first surface of the substrate, at least a first tapered cantilever beam element having a base and a tip, the base attached to the spacer layer, and which is supported over and spaced from the substrate by the spacer layer. The at least first tapered cantilever beam element tapers in width from the base portion to the tip portion. The at least first cantilever beam element further including at least a first layer comprised of a piezoelectric material, a pair of electrically conductive layers disposed on opposing surfaces of the first layer, and a mass supported at the tip portion of the at least first tapered cantilever beam element.

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Patent Owner(s)

Patent OwnerAddress
QUALCOMM TECHNOLOGIES INC5775 MOREHOUSE DRIVE SAN DIEGO CA 92121

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Littrell, Robert J Boston, US 29 245

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