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:
Sep. 13, 2011
Filed:
Feb. 26, 2010
Shoichi Miyazaki, Yokkaichi, JP;
Shoichi Miyazaki, Yokkaichi, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor device includes a memory cell gate structure having a first gate insulating film, a first gate electrode, a second gate insulating film, and a second gate electrode, a select gate structure having a third gate insulating film and a third gate electrode including a first electrode portion, a second electrode portion, and a third electrode portion between the first electrode portion and the second electrode portion, a first impurity diffusion layer formed in a surface area of the semiconductor substrate and located at a portion which corresponds to an area between the memory cell gate structure and the first electrode portion, and a second impurity diffusion layer formed in a surface area of the semiconductor substrate and located at a portion which corresponds to an area between the first electrode portion and second electrode portion.