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:
Dec. 22, 2020
Filed:
Nov. 19, 2018
Applicant:
Honeywell International Inc., Morris Plains, NJ (US);
Inventors:
Romney R. Katti, Shorewood, MN (US);
Edward F. Ambrose, Inver Grove Heights, MN (US);
Assignee:
Honeywell International Inc., Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); G11C 11/16 (2006.01); H01F 10/32 (2006.01); H01L 43/08 (2006.01);
U.S. Cl.
CPC ...
G01R 33/098 (2013.01); G11C 11/1673 (2013.01); H01F 10/3254 (2013.01); H01L 43/08 (2013.01);
Abstract
A magnetic tunnel junction (MTJ) based sensor device includes a MTJ element and processing circuitry. The MTJ element includes a free layer, a pinned layer, an elastic layer, and a tunnel barrier. The free layer is spaced apart from the pinned layer by the tunnel barrier and the elastic layer. The processing circuitry is configured to measure a resistance at the MTJ element and determine whether mechanical shock and vibration has occurred based on the resistance at the MTJ element.