Static information storage and retrieval – Read/write circuit – Having fuse element
Reexamination Certificate
2007-12-11
2007-12-11
Nguyen, Tan T. (Department: 2827)
Static information storage and retrieval
Read/write circuit
Having fuse element
C365S189070, C365S201000, C365S205000, C365S207000
Reexamination Certificate
active
11460464
ABSTRACT:
An apparatus for sensing the state of a programmable resistive memory element device includes a latch device is coupled to a fuse node and a reference node, the fuse node included within a fuse leg and the reference node configured within a reference resistance leg. The latch device is configured to detect a differential signal developed between the reference node and the fuse node as the result of sense current passed through the fuse leg and the reference resistance leg. The fuse and reference resistance legs are further configured for first and second sensing modes, wherein the second sensing mode utilizes a different level of current than the first sensing mode.
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Anand Darren L.
Fredeman Gregory J.
Kirihata Toshiaki
Leslie Alan J.
Safran John M.
Cantor & Colburn LLP
International Business Machines - Corporation
Nguyen Tan T.
Petrokaitis Joseph
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