CMOS powerless rom code mask option select
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United States of America Patent
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Aug 18, 1987
Grant Date -
N/A
app pub date -
Nov 1, 1984
filing date -
Nov 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An integrated circuit having an option between two or more configurations and also using a patterned ion-implant for impressing data (such as a ROM section of the circuit) may advantageously perform the option-specification simultaneously with the ROM; using a powerless option-specifying circuit permits testing portions of the circuit before the implantation step.
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