Company Filing History:
Years Active: 1992-1993
Title: Fred Y Cho: Innovator in Semiconductor and SAW Device Technology
Introduction
Fred Y Cho is a notable inventor based in Scottsdale, AZ (US). He has made significant contributions to the fields of semiconductor and surface acoustic wave (SAW) device technology. With a total of 2 patents, his work has had a lasting impact on the industry.
Latest Patents
Fred Y Cho's latest patents include a "Method and apparatus for SAW device passivation" and a "Method and apparatus for semiconductor device passivation." The first patent describes a passivation layer of dielectric material that is applied to the top surface of the SAW device. This layer prevents the metallized transducer pattern on the piezoelectric substrate from being exposed to chemical attack. It also enhances metal acousto-migration resistance through grain boundary pinning. The piezoelectric SAW device substrate features a dielectric layer over the transducer metallization, with metallized regions forming capacitors that couple electrical signals to the transducers from external electronic apparatus.
The second patent focuses on semiconductor devices, detailing a similar passivation layer that protects the metallized patterns on the semiconductor substrate. This layer also improves metal electro-migration resistance through grain boundary pinning. The semiconductor substrate includes a dielectric layer over the electrode metallization, with metallized regions that form capacitors to the electrodes, facilitating the coupling of electrical signals.
Career Highlights
Fred Y Cho has had a distinguished career at Motorola Corporation, where he has been instrumental in advancing technology in his field. His innovative approaches have led to the development of critical technologies that enhance device performance and reliability.
Collaborations
Throughout his career, Fred has collaborated with talented individuals such as David Penunuri and Robert F Falkner, Jr. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Fred Y Cho's contributions to semiconductor and SAW device technology exemplify his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving device performance and reliability, making him a significant figure in the industry.