Invention Grant
- Patent Title: Temperature coefficient of offset compensation for force sensor and strain gauge
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Application No.: US18535230Application Date: 2023-12-11
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Publication No.: US12203819B2Publication Date: 2025-01-21
- Inventor: Julius Minglin Tsai , Dan Benjamin
- Applicant: NextInput, Inc.
- Applicant Address: US CA Mountain View
- Assignee: NextInput, Inc.
- Current Assignee: NextInput, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: G01L1/22
- IPC: G01L1/22 ; G01L1/16 ; G01L1/18

Abstract:
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 minimize the TCO of the force sensor. The bottom side of the force sensor can be electrically and mechanically mounted on a package substrate while the TCO compensation layer is disposed on the top side of the sensor. It is shown the TCO can be reduced to zero with the appropriate combination of Young's modulus, thickness, and/or thermal coefficient of expansion (TCE) of the TCO compensation layer.
Public/Granted literature
- US20240133755A1 TEMPERATURE COEFFICIENT OF OFFSET COMPENSATION FOR FORCE SENSOR AND STRAIN GAUGE Public/Granted day:2024-04-25
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