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:
Jun. 22, 2010
Filed:
Nov. 06, 2008
Yutaka Takikawa, Hyogo, JP;
Koichi Kawauchi, Hyogo, JP;
Satoko Kamakura, Hyogo, JP;
Kazuo Nomura, Hyogo, JP;
Kazuyuki Kawamoto, Hyogo, JP;
Nobutaka Imanishi, Hyogo, JP;
Yutaka Takikawa, Hyogo, JP;
Koichi Kawauchi, Hyogo, JP;
Satoko Kamakura, Hyogo, JP;
Kazuo Nomura, Hyogo, JP;
Kazuyuki Kawamoto, Hyogo, JP;
Nobutaka Imanishi, Hyogo, JP;
Renesas Technology Corp., Chiyoda-Ku, Tokyo, JP;
Abstract
A semiconductor memory is achieved which allows a reduction in the area of a memory array block without reducing the gate widths of floating gates. A plurality of select gates extend in straight lines in the X direction. Between the upper- and lower-side select gates, two rows' worth of floating gates are arranged. The plurality of floating gates are placed in a staggered arrangement (in other words, in a zigzag pattern). That is, looking at one floating gate in a specific column and another floating gate in a column adjacent to that specific column, those floating gates deviate from each other in the Y direction.