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. 22, 2014
Filed:
Jul. 23, 2012
Tyler Lowrey, West Augusta, VA (US);
Ward D. Parkinson, Boise, ID (US);
Ferdinando Bedeschi, Milan, IT;
Claudio Resta, Pavia, IT;
Roberto Gastaldi, Agrate Brianza, IT;
Giulio Casagrande, Milan, IT;
Tyler Lowrey, West Augusta, VA (US);
Ward D. Parkinson, Boise, ID (US);
Ferdinando Bedeschi, Milan, IT;
Claudio Resta, Pavia, IT;
Roberto Gastaldi, Agrate Brianza, IT;
Giulio Casagrande, Milan, IT;
Ovonyx, Inc., Sterling Heights, MI (US);
Abstract
A voltage derived from accessing a selected bit using one read current may be utilized to read a selected bit of an untriggered phase change memory after the read current is changed. As a result, different reference voltages may be used to sense the state of more resistive versus a less resistive selected cells. The resulting read window or margin may be improved in some embodiments.