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.:

US 9666288 B1

PDF
Full Text
Expired
Date of Patent:
May. 30, 2017

Filed:

Jun. 06, 2016
Applicant:

Fuji Electric Co., Ltd., Kawasaki-shi, Kanagawa, JP;

Inventors:

Kazuhiro Matsunami, Matsumoto, JP;

Mutsuo Nishikawa, Matsumoto, JP;

Assignee:

FUJI ELECTRIC CO., LTD., Kawasaki-Shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/10 (2006.01); H01L 27/11521 (2017.01); G11C 16/30 (2006.01); G11C 5/06 (2006.01); H01L 27/115 (2017.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G11C 16/10 (2013.01); G11C 5/06 (2013.01); G11C 16/30 (2013.01); H01L 27/11521 (2013.01); G06F 12/0246 (2013.01); H01L 27/115 (2013.01);
Abstract

On an IC chip, a first ground wiring line and a second ground wiring line that extends from a connection site with the first ground wiring line are disposed in a doubled manner. Among EPROMs storing identical data, the source of a first EPROM is connected to the second ground wiring line and the source of a second EPROM is connected to the first ground wiring line. The drains of the EPROMs are electrically connected to a write voltage line. An OR circuit outputs as 1-bit data of the memory circuit, the logical sum of the data stored by at least two of the EPROMs storing identical data. The EPROMs and the OR circuit are disposed near each other on the IC chip.


Find Patent Forward Citations

Matsunami, Kazuhiro. (2017). Semiconductor integrated circuit device having electrically rewriteable read-dedicated memory (U.S. Patent No. 9666288). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9666288

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