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:
Mar. 17, 2015
Filed:
Jun. 19, 2013
Macronix International Co., Ltd., Hsinchu, TW;
Cheng-Chi Lin, Hsinchu, TW;
Shih-Chin Lien, Hsinchu, TW;
Shyi-Yuan Wu, Hsinchu, TW;
Chin-Pen Yeh, Hsinchu, TW;
MACRONIX International Co., Ltd., Hsinchu, TW;
Abstract
A semiconductor memory device includes a substrate, a well region in the substrate, a patterned first dielectric layer on the substrate extending over the well region, a patterned first gate structure on the patterned first dielectric layer, a patterned second dielectric layer on the patterned first gate structure, and a patterned second gate structure on the patterned second dielectric layer. The patterned first gate structure includes a first section extending in a first direction and a second section extending in a second direction orthogonal to the first section, the first section and the second section intersecting each other in a cross pattern. The patterned second gate structure includes at least one of a first section extending in the first direction over the first section of the patterned first gate structure or a second section extending in the second direction over the second section of the patterned first gate structure.