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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 5680353 B1

PDFFull Text
Date of Patent:
Oct. 21, 1997

Filed:

Sep. 03, 1993

Eprom memory with internal signature concerning, in particular, the

Applicant:
Inventors:

Jean-Marie Gaultier, Rousset, FR;

Bertrand Conan, AIX en Provence, FR;

Augustin Farrugia, La Ciotat, FR;

Assignee:

SGS-Thomson Microelectronics, S.A., Gentilly Cedex, FR;

Attorneys:

Groover; Robert

Formby; Betty

Anderson; Matthew

Primary Examiner:

Ngan V Ngo

Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
365200 ; 36523003 ; 257315 ; 257529 ; 257659 ; 371 216 ;
Abstract

Electrically programmable memories, in particular EPROMs, generally have an internal signature which can be read by the memory-programming device. This internal signature indicates the origin of the part (manufacturer's identification) and the appropriate programming mode for the part (fast programming, 'intelligent' programming, etc.). Here, it is proposed that this information be recorded in a UPROM (unerasable programmable read-only) memory, i.e., in practice an EPROM memory masked by a layer of aluminium which prevents its erasure by ultraviolet rays.

Find Patent Forward Citations

Gaultier, Jean-Marie. (1997). Eprom memory with internal signature concerning, in particular, the (U.S. Patent No. 5680353). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5680353

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