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:
Jan. 05, 2010
Filed:
Nov. 21, 2007
Applicants:
Shyh-shyuan Sheu, Taichung City, TW;
Lieh-chiu Lin, Kaohsiung City, TW;
Pei-chia Chiang, Taipei City, TW;
Wen-han Wang, Hsinchu City, TW;
Inventors:
Shyh-Shyuan Sheu, Taichung City, TW;
Lieh-Chiu Lin, Kaohsiung City, TW;
Pei-Chia Chiang, Taipei City, TW;
Wen-Han Wang, Hsinchu City, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An embodiment of a method for driving a phase change memory, comprising counting an access number of a phase change memory, wherein the access number is the number of times that the phase change memory has been accessed; refreshing the phase change memory when the number of times is large than a predetermined number.