Zhiqing Liu

Title: Zhiqing Liu - Innovator in ESD Protection Technology

Introduction

Zhiqing Liu is a notable inventor based in San Jose, CA, who has made significant contributions to the field of integrated circuit design. With a focus on enhancing the reliability of electronic devices, Liu has developed innovative solutions to address critical challenges in electro-static discharge (ESD) protection.

Latest Patents

Liu holds a patent for an "Active ESD shunt with transistor feedback to reduce latch-up susceptibility." This invention provides a VDD-to-VSS clamp that shunts current from a power node to a ground node within an integrated circuit chip during an ESD event. The design incorporates a resistor and capacitor in series, which generates a low voltage on a trigger node when an ESD event occurs. A p-channel transistor, driven by this trigger node, activates an n-channel shunt transistor to effectively manage ESD current. Additionally, a p-channel feedback transistor is employed to terminate the ESD shunt current, ensuring robust protection against latch-up triggers.

Career Highlights

Zhiqing Liu is currently employed at Pericom Semiconductor Corporation, where he continues to innovate in the field of semiconductor technology. His work focuses on developing solutions that enhance the performance and reliability of electronic components.

Collaborations

Liu collaborates with talented professionals in his field, including coworkers Paul C. F. Tong and Wensong Chen, who contribute to the advancement of ESD protection technologies.

Conclusion

Zhiqing Liu's contributions to ESD protection technology exemplify his commitment to innovation in the semiconductor industry. His patent reflects a deep understanding of the challenges faced in integrated circuit design and offers effective solutions to enhance device reliability.