Pressure detection structure and electronic device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12209922
APP PUB NO 20230055731A1
SERIAL NO

17794123

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Abstract

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A pressure detection structure and an electronic device are provided that improve sensitivity and accuracy of pressure detection. The pressure detection structure includes: N piezo-resistors connected at the first dielectric layer to form a Wheatstone bridge, where an opening of a first cavity is provided on the first surface of the substrate. The two ends, in a first direction, of the vertical projection of a first piezo-resistor among the N piezo-resistors on a contact surface between the N piezo-resistors and the first dielectric layer are located respectively on the two sides, in the first direction, of the vertical projection of the first cavity on the contact surface. The long side of a second piezo-resistor among the N piezo-resistors is perpendicular to the first direction, and the vertical projection of the second piezo-resistor on the contact surface does not overlap with the vertical projection of the first cavity.

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Patent Owner(s)

Patent OwnerAddress
HUAWEI TECHNOLOGIES CO LTD518129 BANTIAN HUAWEI HEADQUARTERS OFFICE BUILDING LONGGANG DISTRICT GUANGDONG SHENZHEN SHENZHEN CITY GUANGDONG PROVINCE 518129

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Wenbo Shanghai, CN 248 1080
Xu, Xinyu Shanghai, CN 47 423

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