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:
Apr. 02, 2002
Filed:
Sep. 01, 2000
Applicant:
Inventors:
Takashi Akioka, Akishima, JP;
Masao Shinozaki, Higashimurayama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
Setting means (such as fuse circuits) for adjusting the timings of various signals such as an activation timing of a sense amplifier, a fall timing of a word line, a recovery operation (equalization) of a bit lines and so forth, checking an operation in a test stage of a chip, and permanently programming (fixing) the timing of an internal signal to the condition of the highest operation speed that can be confirmed as acquirable in this check stage, is provided.