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:
Apr. 06, 2010
Filed:
Nov. 24, 2006
Shien-uang Jen, Taipei, TW;
Wen-chih Chen, Taipei, TW;
Yuan-tsung Chen, Taipei, TW;
Yeong-der Yao, Taipei, TW;
Shien-Uang Jen, Taipei, TW;
Wen-Chih Chen, Taipei, TW;
Yuan-Tsung Chen, Taipei, TW;
Yeong-Der Yao, Taipei, TW;
Academia Sinica, Taipei, TW;
Abstract
A strain sensor is provided including a substrate, and a sensing layer, including cobalt, provided on the substrate. A first electrode is coupled to the sensing layer, and a tunnel layer including aluminum oxide is provided on the sensing layer. In addition, a pinned layer, also including cobalt, is provided on the tunnel layer. An exchange biasing layer is provided on the pinned layer, and a second electrode is coupled to the exchange biasing layer. The strain sensor is configured such that, over a range of values of strain applied to the sensor, a resistance of the sensor is a linear function of the strain. A related method is also disclosed.