ESD device with fast response and high transient current

An electrostatic discharge (ESD) device with fast response to high transient currents. The ESD device includes a short-pulse discharge (SPD) path and a long-pulse discharge (LPD) path. The SPD path provides robust response to ESD events, and it triggers a self-bias configuration of the LPD path. Adv...

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Bibliographic Details
Main Authors Appaswamy, Aravind C, Di Sarro, James P
Format Patent
LanguageEnglish
Published 08.12.2020
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) device with fast response to high transient currents. The ESD device includes a short-pulse discharge (SPD) path and a long-pulse discharge (LPD) path. The SPD path provides robust response to ESD events, and it triggers a self-bias configuration of the LPD path. Advantageously, the SPD path reduces the risk of ESD voltage overshoot by promptly discharging short-pulse currents, such as a charge device model (CDM) current, whereas the LPD path provides efficient discharge of long-pulse currents, such as a human body model (HBM) current. In one implementation, for example, the SPD path includes a MOS transistor, and the LPD includes a bipolar transistor having a base coupled to the source of the MOS transistor.
Bibliography:Application Number: US201715670148