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. 04, 2009
Filed:
Dec. 19, 2007
Applicant:
Tomoyuki Ishii, Hachiouji, JP;
Inventor:
Tomoyuki Ishii, Hachiouji, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a sense amplifier and a decoder provided on a semiconductor substrate together with memory cells provided above the sense amplifier and the decoder. Each of the memory cells includes a channel region, in which current flows in a direction perpendicular to a surface of the semiconductor substrate, a charge accumulation region provided along the channel region, and an insulator film provided between the channel region and the charge accumulation region.