Location History:
- Phoenix, AZ (US) (1992 - 1996)
- Paradise Valley, AZ (US) (1993 - 1997)
Company Filing History:
Years Active: 1992-1997
Title: Ljubisa Ristic: Innovator in Semiconductor Technology
Introduction
Ljubisa Ristic is a prominent inventor based in Paradise Valley, AZ (US). He has made significant contributions to the field of semiconductor technology, holding a total of 14 patents. His innovative work has advanced the development of pressure sensors and monolithic semiconductor devices.
Latest Patents
Among his latest patents is a method for fabricating a pressure sensor. This invention involves etching a V-groove in a first surface of a substrate, bonding a second substrate, and thinning it to create a diaphragm. The process also includes etching a port from the first substrate to the V-groove. Tetra-methyl-ammonium-hydroxide is used for etching the V-groove, while an anisotropic plasma reactive ion etch is employed for the port. Another notable patent is a method for fabricating a monolithic semiconductor device with integrated surface micromachined structures. This method includes forming sensor areas and IC areas on a semiconductor substrate, followed by a series of protective and sacrificial layers to ensure the integrity of the sensor elements.
Career Highlights
Ljubisa Ristic has had a distinguished career at Motorola Corporation, where he has been instrumental in developing cutting-edge technologies. His expertise in semiconductor fabrication has positioned him as a leader in his field. His innovative approaches have not only enhanced product performance but have also contributed to the overall advancement of semiconductor technology.
Collaborations
Throughout his career, Ristic has collaborated with notable colleagues, including Ronald J. Gutteridge and William C. Dunn. These collaborations have fostered an environment of innovation and have led to the successful development of various technologies.
Conclusion
Ljubisa Ristic's contributions to semiconductor technology through his patents and work at Motorola Corporation highlight his role as a key innovator in the field. His advancements in pressure sensors and monolithic devices continue to influence the industry.