Location History:
- Gilbert, AZ (US) (1999)
- Kanata, CA (1988 - 2000)
Company Filing History:
Years Active: 1988-2000
Title: The Innovative Contributions of Pak K Leung
Introduction
Pak K Leung is a notable inventor based in Kanata, Canada, recognized for his significant contributions to the field of ferroelectric materials. With a total of nine patents to his name, he has made substantial advancements in integrated circuit applications, particularly in microwave technology.
Latest Patents
Among his latest patents, Leung has developed a ferroelectric dielectric for integrated circuit applications. This innovation involves a polycrystalline perovskite phase of lead zirconate titanate dielectric material. The process utilizes a low-temperature method combined with rapid thermal annealing to produce small grain size material. A layer of amorphous ferroelectric precursor material is deposited and subsequently annealed in an oxygen-containing atmosphere with water vapor and a small percentage of ozone, at temperatures below 500 degrees Celsius. This method results in a ferroelectric material with a grain size of less than 20 nm, characterized by low film stress, high dielectric constant, and low leakage current. The material exhibits excellent ferroelectric properties up to 10 GHz, making it suitable for various applications, including capacitors, filters, decoupling, coupling, bypass elements, and high-frequency surface acoustic wave devices.
Career Highlights
Pak K Leung has had a distinguished career, working with prominent companies such as Northern Telecom Limited and Nortel Networks Corporation. His experience in these organizations has allowed him to refine his expertise in the development of advanced materials for electronic applications.
Collaborations
Throughout his career, Leung has collaborated with esteemed colleagues, including Vasanta Chivukula and Ismail T Emesh. These partnerships have contributed to the successful development of innovative technologies in the field.
Conclusion
Pak K Leung's work in the realm of ferroelectric materials has significantly impacted the field of integrated circuits and microwave applications. His innovative patents and collaborations highlight his dedication to advancing technology and improving electronic components.