ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT AND METHODS OF FORMING THE SAME
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Sep 7, 2023
filing date -
Sep 7, 2023
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Abstract
An electrostatic discharge (ESD) protection circuit includes a silicon controlled rectifier. The silicon controlled rectifier includes a first well of a first conductivity type in a substrate, and a first doped region of a second conductivity type and a first tap region of the first conductivity type in the first well. The second conductivity type has an opposite polarity to the first conductivity type. The first doped region is coupled to a first pad. The first tap region is coupled to a second pad through a resistor external to the silicon controlled rectifier.
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