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:
Dec. 22, 2015
Filed:
Mar. 03, 2015
Kabushiki Kaisha Toshiba, Tokyo, JP;
Hideki Inokuma, Yokkaichi Mie, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor device includes a substrate, a plurality of element regions that are partitioned in a line-and-space shape and extend in a first direction in the substrate, a plurality of selection gates that are formed on the substrate to extend in a second direction intersecting the first direction. In addition, the semiconductor device includes a contact region that includes a plurality of contact plugs which are provided between two selection gates adjacent to each other and are connected to the respective element regions in the substrate. Further, the contact plug includes an upper portion and a lower portion. The upper portion has a first width and is formed of a first conductive film and a second conductive film. The lower portion has a second width smaller than the first width and is formed of the first conductive film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile