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. 11, 2010
Filed:
Nov. 13, 2008
Chih-lung Hung, Hsinchu, TW;
Chih-Lung Hung, Hsinchu, TW;
Episil Technologies Inc., Hsnichu, TW;
Abstract
An erasing method of a non-volatile memory is provided. The non-volatile memory includes a control gate disposed in a substrate, a floating gate, a gate oxide layer disposed between the floating gate and the substrate, a source region disposed in the substrate, a drain region disposed in the substrate, a first dielectric layer disposed on the floating gate, a second dielectric layer disposed on sidewalls of the floating gate, and an erase gate. The erasing method includes applying a first voltage on the control gate, applying a second voltage on the drain, applying a third voltage on the source, applying a fourth voltage on the erase gate, and applying a fifth voltage on the substrate, such that electrons are drawn from the floating gate to the erase gate to be erased.