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:
Oct. 25, 2005
Filed:
Feb. 10, 2004
Applicants:
Bryan Atwood, Tokyo, JP;
Takao Watanabe, Fuchu, JP;
Takeshi Sakata, Hino, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L027/108 ;
U.S. Cl.
CPC ...
Abstract
A high capacity, fast access dynamic random access memory is provided. Furthermore, a pipelined write method can be realized at each array block by affixing a latch between the sense amplifier and write data line for each column. In this manner, a data write phase can occur simultaneously with the pre-read phase of the following address. Using this method, the effective access speed to the array block can be increased, yielding a fast access cache memory.