The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2019
Filed:
May. 03, 2016
Freescale Semiconductor, Inc., Austin, TX (US);
Chad Dawson, Queen Creek, AZ (US);
Keith Kraver, Gilbert, AZ (US);
Shiraz Contractor, Phoenix, AZ (US);
NXP USA, Inc., Austin, TX (US);
Abstract
A pressure sensor device and a method for testing the pressure sensor device is provided. The pressure sensor device includes a first pressure sensor cell having a first capacitance value, and a second pressure sensor cell having a second capacitance value, the second capacitance value being different from the first capacitance value. In one embodiment, the method includes determining a temperature coefficient offset to test for faults in the pressure sensor device. In another embodiment, the method includes determining a differential mode calculation and a common mode calculation. A fault exists if the differential and common mode calculations do not agree.