Company Filing History:
Years Active: 1984-2000
Title: Donald R Bradbury: Innovator in Acoustical Resonators and Integrated Circuit Technologies
Introduction
Donald R Bradbury is a notable inventor based in Palo Alto, California, with an impressive portfolio consisting of seven patents. His work primarily focuses on advancements in acoustical resonators and methods for depositing metallic layers on integrated circuits. With significant contributions to the field, Bradbury exemplifies the creative spirit of innovation.
Latest Patents
Bradbury's latest patents include groundbreaking technologies such as SBAR structures and methods of fabrication of SBAR. Additionally, he has developed a method for processing FBAR film which involves designing an acoustical resonator. This innovative resonator features a layer of piezoelectric material situated between two electrodes. The first electrode is crafted with a conducting sheet that maintains a root mean square (RMS) variation in height of less than 2 micrometers. Furthermore, the resonator is incorporated into a cavity within a substrate that is meticulously constructed using a sacrificial material, which is later removed to achieve high precision.
Another notable patent addresses the selective tungsten deposition, where a method is proposed to form a plug for electrical connections on an integrated circuit substrate. It employs a two-step process of argon sputter etching and oxygen plasma descumming to minimize contact resistance. This innovative approach not only optimizes the manufacturing process but also reduces the occurrence of unwanted nucleation, thereby enhancing the performance of integrated circuits.
Career Highlights
Donald R Bradbury has built a commendable career as an inventor at Hewlett-Packard Company, where his work has made a significant impact on the technology landscape. His inventive approaches have not only advanced the field of acoustical resonators but have also facilitated improvements in integrated circuit manufacturing techniques.
Collaborations
Throughout his career, Bradbury has collaborated with esteemed colleagues, including Armand P Neukermans and Theodore I Kamins. These collaborations have further enriched his innovations, helping to push the boundaries of technology and enhancing the overall effectiveness of his inventions.
Conclusion
In conclusion, Donald R Bradbury stands out as a prominent figure in the realms of acoustical resonators and integrated circuit technologies. His seven patents underscore a commitment to innovation and advancement in the field, demonstrating the vital role that inventors like him play in shaping the future of technology.