Method of fabricating packaged TRIAC and trigger switch
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United States of America Patent
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Apr 3, 1990
Issued Date -
N/A
app pub date -
May 9, 1988
filing date -
Dec 19, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A two-terminal, bidirectional semiconductor trigger switch is provided. The trigger switch is a relatively sensitive multilayer semiconductor breakover device that switches on fully when its breakover voltage is reached. The design of the trigger switch allows its breakover voltage point to be readily adjustable during fabrication of the device. The semiconductor trigger switch is particularly suited to provide a low voltage trigger for a TRIAC. The trigger switch is connected in series with the gate of the TRIAC and mounted on the gate lead to provide a unitary, three-terminal device incorporating the TRIAC/trigger switch combination.
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