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.

Date of Patent:
May. 03, 2005

Filed:

Aug. 30, 2002
Applicants:

Hitoshi Shiga, Kanagawa, JP;

Tadayuki Taura, Kanagawa, JP;

Shigeru Atsumi, Kanagawa, JP;

Inventors:

Hitoshi Shiga, Kanagawa, JP;

Tadayuki Taura, Kanagawa, JP;

Shigeru Atsumi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C007/00 ;
U.S. Cl.
CPC ...
Abstract

A semiconductor device has an address counter to output, in a first mode, a first block address whereas, in a second mode, a second block address selected from a block-address space two times larger than a block-address space corresponding to memory blocks, the memory blocks and at least one redundant block being included in a memory section, and a block-selection controller, in the second mode, one of the memory blocks, which corresponds to the output of the address counter, when the most significant value of the second block address as the output of the address counter is at a first level whereas select the redundant block while the memory blocks are inhibited from selection, when the most significant value is at a second level.


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