Electronically selectable redundant array (ESRA)
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United States of America Patent
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Apr 8, 1986
Grant Date -
N/A
app pub date -
Apr 9, 1984
filing date -
Apr 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure is directed to an electronically selectable redundant array or memory technique and circuitry. More particularly the invention utilizes Level Sensitive Scan Design (LSSD) circuitry with limited modification to perform the additional function of selecting a redundant word (or words) in a memory chip containing at least one defective word. The correction mechanism is independent of which word line (or word lines) is bad, and is therefore independent of I/O pin (or pad) connection of the array chip.
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