Electrostatic discharge protection circuit

An electrostatic discharge (ESD) protection circuit is provided. A detector is coupled between a first input-output pad and a second input-output pad and detects the voltage levels of the first and second input-output pads to generate a detection signal. A inverter generates a control signal accordi...

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Bibliographic Details
Main Authors Chuang, Chieh-Yao, Chen, Hung-Wei, Chuang, Jung-Tsun, Huang, Shao-Chang
Format Patent
LanguageEnglish
Published 31.12.2019
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
SEMICONDUCTOR DEVICES
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Summary:An electrostatic discharge (ESD) protection circuit is provided. A detector is coupled between a first input-output pad and a second input-output pad and detects the voltage levels of the first and second input-output pads to generate a detection signal. A inverter generates a control signal according to the detection signal. A control element is coupled between the first input-output pad and a first node. A current release element is coupled between the first node and the second input-output pad. When the detection signal is at a specific level, the control element and the current release element provide a discharge path to release an ESD current from the first input-output pad to the second input-output pad. When the detection signal is not at the specific level, the control element and the current release element do not provide a discharge path.
Bibliography:Application Number: US201615369249