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:
Oct. 31, 2000

Filed:

Apr. 29, 1998
Applicant:
Inventors:

Kenneth J Mobley, Colorado Springs, CO (US);

Steve W Ash, Colorado Springs, CO (US);

Assignee:

Enhanced Memory Systems, Inc., Colorado Springs, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3652257 ; 365200 ;
Abstract

A technique for reducing element disable fuse pitch requirements in an integrated circuit device incorporating replaceable elements wherein each group of replaceable elements contains a circuit which enables an element group within a chained set to determine whether it is the 'leftmost' (or first) element used within the set by monitoring the state of an adjacent node. The node will transition to a logic 'low' level if (and only if) a fuse within the set, (and located to the left of the node) is 'blown' (or opened). By then multiplexing signals to select one or more elements within the first group and additional signals to select one or more elements within the second group, the necessary determination can be made to disable any given pair of elements based on the state of the fuses, the adjacent nodes and the additional signals.


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