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:
Jan. 10, 2017
Filed:
Jul. 18, 2016
Renesas Electronics Corporation, Tokyo, JP;
Hiraku Chakihara, Tokyo, JP;
Satoshi Abe, Tokyo, JP;
Renesas Electronics Corporation, Tokyo, JP;
Abstract
The memory cell includes a gate insulating film, a control gate electrode, a cap insulating film, a cap layer, another gate insulating film, and a memory gate electrode. A laminated capacitive element includes a capacitive electrode which is constituted by a sub-electrode and another sub-electrode formed of mesa portions (protruding portions) disposed on the sub-electrode at a predetermined interval and each having an upper surface and side surfaces, a capacitive insulating film which is formed along an upper surface of the sub-electrode and the upper surface and the side surfaces of the another sub-electrode, and another capacitive electrode which is formed on the capacitive insulating film. Further, the control gate electrode and the sub-electrode are made of a conductor film, the cap layer and the another sub-electrode are made of other conductor film, and the memory gate electrode and the another capacitive electrode are made of another conductor film.