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. 01, 2008
Filed:
Apr. 26, 2006
Ko-hsing Chang, Hsinchu, TW;
Su-yuan Chang, Hsinchu Hsien, TW;
Ko-Hsing Chang, Hsinchu, TW;
Su-Yuan Chang, Hsinchu Hsien, TW;
Powerchip Semiconductor Corp., Hsinchu, TW;
Abstract
A non-volatile memory is described, including a substrate, a floating gate, a control gate, a source region, and a drain region. A trench is disposed in the substrate, and a step-like recess is located in the substrate beside the trench. The floating gate is disposed on the sidewall of the trench. The control gate is disposed on the substrate between the trench and the step-like recess which extends in the step-like recess. The source region is disposed in the substrate at the bottom of the trench. The drain region is disposed in the substrate at the bottom of the step-like recess.