Company Filing History:
Years Active: 2006-2012
Title: Innovations of Che Choi Leung
Introduction
Che Choi Leung is a notable inventor based in Bethlehem Township, PA (US). He has made significant contributions to the field of electrical engineering, particularly in the development of high voltage tolerant circuits and advanced capacitor designs. With a total of 5 patents to his name, Leung continues to push the boundaries of innovation in his field.
Latest Patents
One of Leung's latest patents is for a high voltage tolerant input/output interface circuit. This innovative circuit is designed for use in high voltage applications and includes a signal pad along with a parasitic bipolar transistor. The transistor's emitter connects to the voltage return, while the base receives a control signal, and the collector connects directly to the signal pad in an open collector configuration. Additionally, the circuit features a MOS control circuit that generates the necessary control signal, along with an active pull-up circuit linked to the voltage supply.
Another significant patent involves interdigitated capacitors. This invention describes matched capacitor pairs that utilize interconnect metal in an interdigitated form, optimizing area efficiency. The design minimizes structural variations between capacitors to ensure optimal matching. The interdigitated configuration allows the plates of each capacitor pair to occupy a common area on the substrate, compensating for structural anomalies caused by process conditions.
Career Highlights
Leung is currently employed at Agere Systems Inc., where he applies his expertise in circuit design and innovation. His work has been instrumental in advancing technologies that require high reliability and performance in electrical components.
Collaborations
Throughout his career, Leung has collaborated with notable colleagues, including Edward Belden Harris and Canzhong He. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.
Conclusion
Che Choi Leung's contributions to electrical engineering through his patents and innovative designs highlight his role as a leading inventor in the field. His work continues to influence the development of advanced technologies that meet the demands of modern applications.