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:
Jun. 13, 2007
Applicants:
Cheng-ming Yih, Hsinchu, TW;
Chu-ching Wu, Hsinchu, TW;
Huei-huarng Chen, Hsinchu, TW;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/8247 (2006.01); H01L 29/788 (2006.01);
U.S. Cl.
CPC ...
Abstract
A non-volatile memory device implements self-convergence during the normal erase cycle through control of physical aspects, such as thickness, width, area, etc., of the dielectric layers in the gate structure as well as of the overall gate structure. Self-convergence can also be aided during the normal erase cycle by ramping the erase voltage applied to the control gate during the erase cycle.