pp. 25-36
S&M3495 Research Paper of Special Issue https://doi.org/10.18494/SAM4522 Published: January 24, 2024 Electrostatic Discharge Power Supply Clamp Circuit With a Modified-Resistor/Capacitor Network [PDF] Yan Wu, Yi Liu, Ruizhen Wu, Yintang Yang, and Yaping Yue (Received May 18, 2023; Accepted September 11, 2023) Keywords: clamp circuit, electrostatic discharge, RC network, turn-off mechanism
The resistor/capacitor (RC)-triggered power supply clamp circuit has been widely utilized to protect CMOS integrated circuits (ICs) from damage caused by electrostatic discharge (ESD). In this work, an ESD power supply clamp circuit with a modified-RC network in a 0.18-μm CMOS process is proposed. The layout area of the novel RC network is ultrasmall compared with that of the traditional RC network in a clamp circuit. The proposed clamp circuit can keep the clamp device “on” during the ESD event, whereas it allows a turn-off mechanism with a recovery time of 70 μs under a system-level test. The clamp circuit can effectively avoid false triggering events, such as a 1.8 V/10 ns power-up event. With its high performance and low area cost, this clamp circuit can be used in the sensor IC of industry.
Corresponding author: Ruizhen WuThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yan Wu, Yi Liu, Ruizhen Wu, Yintang Yang, and Yaping Yue, Electrostatic Discharge Power Supply Clamp Circuit With a Modified-Resistor/Capacitor Network , Sens. Mater., Vol. 36, No. 1, 2024, p. 25-36. |