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. 06, 2011
Filed:
Apr. 23, 2009
Applicants:
Hiromitsu Kimura, Kyoto-fu, JP;
Takaaki Fuchikami, Kyoto-fu, JP;
Yoshikazu Fujimori, Kyoto-fu, JP;
Inventors:
Assignee:
Rohm Co., Ltd., Kyoto-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ferroelectric memory device includes: a plurality of memory banks configured to include a memory cell array composed of a ferroelectric memory; a cache bank configured to be bus-connected with the memory banks, and for copying data stored in the memory banks; and a memory bank/cache control sequencer for accessing and refreshing to the memory banks and the cache bank, wherein a random access control to the ferroelectric memory is possible during each memory cycle without delay of refresh operation.