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:
Aug. 18, 2009
Filed:
Oct. 01, 2007
Shine Chung, Sanchong, Taipei, Hsien, TW;
Denny Tang, Saratoga, CA (US);
Fu-lung Hsueh, Hsinchu, TW;
Shine Chung, Sanchong, Taipei, Hsien, TW;
Denny Tang, Saratoga, CA (US);
Fu-Lung Hsueh, Hsinchu, TW;
Other;
Abstract
A method for reading two or more magnetic tunnel junctions (MTJs) which are serially connected with a select transistor to form a memory string, the method comprises turning on the select transistor, measuring a first resistance of the memory string, storing the first resistance, toggling a predetermined one of the MTJs, measuring a second resistance of the memory string after the toggling, toggling back the predetermined one of the MTJs and comparing the first and second resistances with a plurality of predetermined resistance values, wherein the comparison result leads to a determination of the data stored in the MTJs.