Integrated digital force sensors and related methods of manufacture

A Foughi, R Diestelhorst, D Benjamin, JM Tsai… - US Patent …, 2022 - Google Patents
In one embodiment, a ruggedized wafer level microelectro mechanical (“MEMS”) force
sensor includes a base and a cap. The MEMS force sensor includes a flexible membrane …

Integrated piezoresistive and piezoelectric fusion force sensor

JM Tsai, R Diestelhorst, D Benjamin - US Patent 11,243,125, 2022 - Google Patents
Described herein is a ruggedized microelectromechanical (“MEMS”) force sensor including
both piezoresistive and piezoelectric sensing elements and integrated with comple mentary …

Integrated fingerprint and force sensor

JM Tsai, D Benjamin - US Patent 11,423,686, 2022 - Google Patents
Described herein is a ruggedized microelectromechanical (“MEMS”) sensor including both
fingerprint and force sensing elements and integrated with complementary metal-oxide …

Wafer bonded piezoresistive and piezoelectric force sensor and related methods of manufacture

A Bergemont, JM Tsai - US Patent 11,243,126, 2022 - Google Patents
Described herein is a ruggedized microelectromechanical (“MEMS”) force sensor. The
sensor employs piezoresistive or piezoelectric sensing elements for force sensing where the …

Temperature coefficient of offset compensation for force sensor and strain gauge

JM Tsai, D Benjamin - US Patent 11,579,028, 2023 - Google Patents
MEMS force sensors for providing temperature coefficient of offset (TCO) compensation are
described herein. An example MEMS force sensor can include a TCO compensation layer to …

Vibrissa sensor

WN Martin, JH Wasko, JM Lapseritis… - US Patent …, 2018 - Google Patents
A vibration sensor for a fluid environment includes a vibrissa that can be positioned in the
fluid environment. The vibrissa is joined to a cantilever body having magnets positioned …

Integrated piezoresistive and piezoelectric fusion force sensor

JM Tsai, R Diestelhorst, D Benjamin - US Patent 11,604,104, 2023 - Google Patents
Described herein is a ruggedized microelectromechanical (“MEMS”) force sensor including
both piezoresistive and piezoelectric sensing elements and integrated with complementary …

Wafer bonded piezoresistive and piezoelectric force sensor and related methods of manufacture

A Bergemont, JM Tsai - US Patent 11,609,131, 2023 - Google Patents
4, 842685 4,849,730 49 14624 49 18.262 4933660 4,983,786 5095401 5,159,159 5,
166612 5,237,879 5,291,795 5,320,705 5,333,505 5,343.220 5,349,746 5,351,550 5 …

Microelectromechanical force sensor having a strain transfer layer arranged on the sensor die

JM Tsai, D Benjamin - US Patent 11,221,263, 2022 - Google Patents
Described herein is a ruggedized microelectromechanical (“MEMS”) force sensor including
a sensor die and a strain transfer layer. The MEMS force sensor employs piezoresis tive or …

Temperature coefficient of offset compensation for force sensor and strain gauge

JM Tsai, D Benjamin - US Patent App. 18/535,230, 2024 - Google Patents
MEMS force sensors for providing temperature coefficient of offset (TCO) compensation are
described herein. An example MEMS force sensor can include a TCO compensation layer to …