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:
Jan. 17, 2012
Filed:
Mar. 31, 2005
Michael A. Vanbuskirk, Saratoga, CA (US);
Colin S. Bill, Cupertino, CA (US);
Zhida Lan, Cupertino, CA (US);
Tzu-ning Fang, Palo Alto, CA (US);
Michael A. VanBuskirk, Saratoga, CA (US);
Colin S. Bill, Cupertino, CA (US);
Zhida Lan, Cupertino, CA (US);
Tzu-Ning Fang, Palo Alto, CA (US);
Spansion LLC, Sunnyvale, CA (US);
Abstract
A write-once read-many times memory device is made up of first and second electrodes, a passive layer between the first and second electrodes, and an active layer between the first and second electrode. The memory device is programmed by providing a charged species from the passive layer into the active layer. The memory device may be programmed to have for the programmed memory device a first erase activation energy. The present method provides for the programmed memory device a second erase activation energy greater than the first erase activation energy.