Split collector vacuum field effect transistor
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United States of America Patent
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Apr 30, 1991
Grant Date -
N/A
app pub date -
Dec 22, 1989
filing date -
Dec 22, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vacuum FET is designed to perform higher level functions such as logic AND, EXCLUSIVE OR (NOR), demultiplexing, or frequency multiplication with a single device. These higher level functions are accomplished by dividing the collector of the vacuum FET into multiple segments and by providing steering electrodes just above the emitter to deflect the field emission current to the various collector segments. The collector pattern, together with the configuration of the applied signals to the device, determines the higher order function performed.
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