Method and structure for programming fuses
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United States of America Patent
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Jul 16, 1996
Issued Date -
N/A
app pub date -
Oct 7, 1994
filing date -
Feb 8, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A programming method in accordance with this invention partitions traces of a fuse matrix into groups wherein each group contains traces connected to fuses that are to remain intact. All of the traces in a group are connected to a first voltage so that the fuses between traces in the group are subjected to minimal currents. In one embodiment, all of the traces that are not in the group connected to the first voltage are connected to a second voltage such that a programming current passes through fuses to be programmed. In an alternative embodiment, traces in a second group are connected to the second voltage and all of the remaining traces are shorted to each other.
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