David K Chung

Title: David K Chung: Innovator in Integrated Circuit Technology

Introduction

David K Chung is a notable inventor based in Lake Elsinore, California. He has made significant contributions to the field of integrated circuits, holding 2 patents that showcase his innovative approach to reducing noise and improving signal integrity in electronic devices.

Latest Patents

One of Chung's latest patents is a method and apparatus for reducing transient noise in integrated circuits. This invention addresses the transient noise generated at the output drivers of an integrated circuit chip. By maintaining an increasing ramp-shaped current through each output driver during the transition interval between binary states of a capacitive load, Chung's design effectively reduces noise. The invention includes a capacitor fed by a fixed current source, which generates a linear ramp-shaped control voltage. This voltage regulates the charging and discharging current through the output driver stage, minimizing the impact of process variations and operating conditions. Additionally, a dynamic clamp is incorporated to suppress voltage spikes outside the operating range.

Another significant patent by Chung is a Schmitt trigger adapted to interface between different transistors. This Schmitt trigger features first and second complementary switches that exhibit hysteresis. It switches at a high threshold level when the input signal increases and at a low threshold level when the input decreases. The design includes transition circuitry that shifts the signal level closer to the power supply voltage without altering the logical value of the signal. This innovative approach enhances the performance of integrated circuits by improving signal integrity.

Career Highlights

David K Chung is currently employed at Western Digital Corporation, where he continues to develop cutting-edge technologies in the field of data storage and integrated circuits. His work has had a lasting impact on the industry, particularly in enhancing the reliability and performance of electronic devices.

Collaborations

Chung has collaborated with notable colleagues, including Timothy G O'Shaughnessy and Richard William Hull. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

David K Chung is a distinguished inventor whose work in integrated circuit technology has led to innovative solutions for reducing noise and improving signal integrity. His contributions continue to influence the electronics industry, making him a key figure in the realm of technological advancements.