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. 10, 2010
Filed:
Jul. 01, 2008
Shyh-shyuan Sheu, Taichung, TW;
Lieh-chiu Lin, Kaohsiung, TW;
Pei-chia Chiang, Taipei, TW;
Wen-pin Lin, Changhua County, TW;
Shyh-Shyuan Sheu, Taichung, TW;
Lieh-Chiu Lin, Kaohsiung, TW;
Pei-Chia Chiang, Taipei, TW;
Wen-Pin Lin, Changhua County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An embodiment of a writing system for a phase change memory based on a present application is disclosed. The writing system comprises a first phase change memory (PCM) cell, a second PCM cell, a first writing circuit and a verifying circuit. The first writing circuit executes a writing procedure, receives and writes a first data to the first PCM cell. The verifying circuit executes a verifying procedure and the circuit further comprises a processing unit and a second writing circuit. The processing unit reads and compares the data stored in the second PCM cell with a second data. The second writing circuit writes the second data to the second PCM cell when the data stored in the second PCM cell and the second data are not matched.