Redundancy enable/disable circuit
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United States of America Patent
Stats
-
Aug 25, 1987
Grant Date -
N/A
app pub date -
Sep 18, 1986
filing date -
Sep 18, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A redundancy enable/disable circuit for enabling and disabling subsequently the use of redundant elements includes first through third P-channel MOS transistors, an N-channel MOS transistor, an enable fuse, and a disable fuse. The enable fuse is blown so as to enable the use of the redundant elements, and the disable fuse is blown subsequently to disable use of the redundant elements.
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