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:
Jul. 08, 2008
Filed:
Feb. 01, 2007
Chun Jen Huang, Tainan, TW;
Chung Kuang Chen, Pan Chiao, TW;
Hsin Yi Ho, HsinChu, TW;
Macronix International Co., Ltd., Hsinchu, TW;
Abstract
A method for operating a charge-trapping multi-level cell ('MLC') memory array comprises programming a first plurality of charge-trapping sites to a preliminary first-level value, programming a second plurality of charge-trapping sites to a preliminary second-level value, and programming a third plurality of charge-trapping sites to a final third-level value using a first programming scheme. Then, the first plurality of charge-trapping sites is programmed to a final first-level value and the second plurality of charge-trapping sites is programmed to a final second-level value using a second programming scheme.