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:
Sep. 14, 2010
Filed:
Jun. 19, 2008
Pei-chia Chiang, Taipei, TW;
Shyh-shyuan Sheu, Taichung, TW;
Lieh-chiu Lin, Kaohsiung, TW;
Wen-pin Lin, Changhua County, TW;
Pei-Chia Chiang, Taipei, TW;
Shyh-Shyuan Sheu, Taichung, TW;
Lieh-Chiu Lin, Kaohsiung, TW;
Wen-Pin Lin, Changhua County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
Devices controlling a phase change storage element and methods for increasing reliability of a phase change storage element. The invention introduces a first operation mode and a second operation mode. A reference phase change storage element is forced a write current for an ideal conduction period in the first operation mode. In the second operation mode, the invention generates a proper conduction period based on the resistance of the reference phase change storage element, and forces the write current into the controlled phase change storage element for the proper conduction period.