Company Filing History:
Years Active: 2004
Title: The Innovative Contributions of Roosevelt Johnson
Introduction
Roosevelt Johnson is a notable inventor based in Compton, California. He has made significant contributions to the field of materials science, particularly in the area of precious alloyed metal solder plating processes. His innovative approach has the potential to enhance various applications in semiconductor technology.
Latest Patents
Roosevelt Johnson holds a patent for a process titled "Precious Alloyed Metal Solder Plating Process." This relatively simple and inexpensive method is designed for plating precious alloyed metals such as AuSn, AuSnIn, AgSn, AuIn, and AgIn. The process involves forming anodes from each metal component in the alloy, which are then placed in a conducting solution. The mass of each metal component is determined by Faraday's law, and the target is also disposed in the conducting solution. Plating current is independently applied to each anode, and the process is conducted under ultraviolet light sources to optimize results. This innovative plating technique can be used for various purposes, including attaching semiconductor dies to substrates. Importantly, the process minimizes the risk of contamination of the semiconductor by avoiding prolonged exposure to high temperatures.
Career Highlights
Roosevelt Johnson is currently employed at Northrop Grumman Systems Corporation, where he continues to develop and refine his innovative techniques. His work has garnered attention for its potential to improve the reliability and efficiency of semiconductor manufacturing processes.
Collaborations
Roosevelt collaborates with talented coworkers, including Dean Tran and Salim Akbany, who contribute to the innovative environment at Northrop Grumman Systems Corporation.
Conclusion
Roosevelt Johnson's contributions to the field of precious alloyed metal solder plating represent a significant advancement in semiconductor technology. His innovative processes not only enhance manufacturing efficiency but also ensure the integrity of semiconductor components.