ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Sep 8, 2014
filing date -
Feb 24, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A semiconductor device is provided. The semiconductor device includes: a high-pass filter circuit, configured to provide a first voltage; an electrostatic discharge (ESD) protection device; and a trigger circuit, coupled to the high-pass filter circuit and the ESD protection device, wherein when an ESD event caused by positive electric charges occurs on a first rail, the trigger circuit provides a second voltage, which is lower than the first voltage, to the ESD protection device, so that electric charges of the ESD event are directed to a second rail through the ESD protection device.
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