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. 16, 2011
Filed:
May. 24, 2010
Hee Bok Kang, Chungcheongbuk-do, KR;
Suk Kyoung Hong, Gyeonggi-do, KR;
Hee Bok Kang, Chungcheongbuk-do, KR;
Suk Kyoung Hong, Gyeonggi-do, KR;
Hynix Semiconductor Inc., Kyoungki-do, KR;
Abstract
A method for efficiently driving a phase change memory device is presented that includes the operational procedures of writing, reading, comparing and changing. The phase change memory device has a resistor configured to sense a crystallization state changed by currents so as to store data corresponding to the crystallization state. The writing operation writes data having a first state in a corresponding unit cell of the phase change memory device. The reading operation reads a cell data stored in the unit cell. The comparing operation compares the data having the first state with the cell data read from the unit cell to verify whether or not the data having the first state is the same as the cell data. The changing operation changes a write condition when the data having a first state is different from that of the cell data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile