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:
Aug. 26, 2014
Filed:
Dec. 13, 2011
Hideki Sugiyama, Kanagawa, JP;
Hideki Hara, Kanagawa, JP;
Hideki Sugiyama, Kanagawa, JP;
Hideki Hara, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
A nonvolatile semiconductor memory comprises a first memory cell transistor, a second memory cell transistor, a connection layer, protrusion portions and a contact portion. The first memory cell transistor comprises a first gate electrode formed above a first channel region, and a second gate electrode formed on a side of the first gate electrode through an insulating film. The second memory cell transistor comprises a third gate electrode formed above a second channel region, and a fourth gate electrode formed on a side of the third gate electrode through an insulating film and facing the second gate electrode. The connection layer connects the second gate electrode and the fourth gate electrode. The protrusion portions are formed of a material different than that of the second and fourth gate electrodes, and are formed on both ends of the connection layer. The contact portion is formed on the connection layer.