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:
Nov. 25, 2008
Filed:
Dec. 30, 2005
Heong Jin Kim, Chilgok-gun, KR;
Heong Jin Kim, Chilgok-gun, KR;
Dongbu Electronics Co., Ltd., Seoul, KR;
Abstract
A nonvolatile memory device includes a floating gate formed on a tunnel oxide layer that is on a semiconductor substrate. The device also includes a drain region formed in the substrate adjacent to one side of the floating gate, a source region formed adjacent to another side of the floating gate. The source region is apart from the floating gate, and an inter-gate insulating layer formed on a portion of an active region between the source region and the floating gate and on a sidewall of the floating gate directing toward the source region, and on a sidewall of the floating gate directing toward the drain region. The device includes a word line formed over the floating gate and being across the substrate in one direction, and a field oxide layer interposing between the word line and the source region.