This inventor holds 2 USPTO granted patents. Top assignee: Freescale Semiconductor,inc.. Active years: 2011-2013.
Company Filing History:
Years Active: 2011-2013
Title: Brian D Griesbach: Innovator in Semiconductor Amplifiers
Introduction
Brian D Griesbach is a notable inventor based in Austin, TX (US). He has made significant contributions to the field of semiconductor technology, particularly in the design of high-efficiency amplifiers. With a total of 2 patents to his name, Griesbach's work has had a substantial impact on the industry.
Latest Patents
Griesbach's latest patents focus on a high-efficiency amplifier with reduced parasitic capacitance. This innovative semiconductor amplifier comprises a substrate and one or more unit amplifying cells (UACs) formed on the substrate. Each UAC is laterally surrounded by a first lateral dielectric filled trench (DFT) isolation wall extending at least to the substrate. Multiple UACs are surrounded by a second lateral DFT isolation wall of similar depth outside the first isolation walls. Additionally, further semiconductor regions lying between the first isolation walls, when two or more unit cells are present, and/or lying between the first and second isolation walls, are electrically floating with respect to the substrate. This design reduces the parasitic capacitance of the amplifying cells and improves power added efficiency. Furthermore, excessive leakage between buried layer contacts when using high resistivity substrates is avoided by providing a further semiconductor layer of intermediate doping between the substrate and the buried layer contacts.
Career Highlights
Griesbach is currently employed at Freescale Semiconductor, Inc., where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing the efficiency and performance of amplifiers used in various applications.
Collaborations
Throughout his career, Griesbach has collaborated with talented individuals such as Joel M Keys and Theresa M Keller. These collaborations have contributed to the development of cutting-edge technologies in the semiconductor industry.
Conclusion
Brian D Griesbach is a prominent inventor whose work in semiconductor amplifiers has led to significant advancements in efficiency and performance. His contributions continue to shape the future of technology in this field.