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:
May. 15, 2007
Filed:
Jun. 08, 2005
Applicants:
Cheng-hsing Hsu, Hsinchu, TW;
Chao-i Wu, Hsinchu, TW;
Hao-ming Lien, Hsinchu, TW;
Ming-hsiang Hsueh, Hsinchu, TW;
Inventors:
Cheng-Hsing Hsu, Hsinchu, TW;
Chao-I Wu, Hsinchu, TW;
Hao-Ming Lien, Hsinchu, TW;
Ming-Hsiang Hsueh, Hsinchu, TW;
Assignee:
MACRONIX International Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of using a non-volatile memory that utilizes a charge-trapping layer for data storage is described. A refresh step is performed, after the non-volatile memory is subject to multiple write/erase cycles causing hard-to-erase electrons in the charge-trapping layer, to eliminate the hard-to-erase electrons. After the refresh step, the non-volatile memory is used again.