Company Filing History:
Years Active: 1992-1993
Title: Randal D King: Innovator in Plating Processes
Introduction
Randal D King is a notable inventor based in Wilmington, DE (US), recognized for his contributions to the field of plating processes. With a total of five patents to his name, he has made significant advancements in the manufacturing of multilayer printed circuit boards.
Latest Patents
One of his latest patents is the "Stabilized spray displacement plating process." This invention presents an efficient method for spray displacement tin plating of copper printed circuit innerlayers. The process involves stabilizing and replenishing the displacement tin plating solution by incorporating free tin metal in the plating solution reservoir. This innovation addresses the issue of unwanted tin(IV) ions produced by aerial oxidation during the spray process. By reacting these ions with tin metal in the reservoir, sufficient tin(II) ions are generated to compensate for losses due to plating and oxidation, thereby extending the useful life of the plating bath.
Another significant patent is the "Process for extending the life of a displacement plating bath." This process also focuses on the stabilization of the spray tin plating solution during prolonged use. It involves removing portions of the solution from the reservoir before saturation is reached, selectively precipitating the thiourea complex, and returning the remaining solution back to the reservoir. This method not only stabilizes the plating bath but also dramatically extends its useful life.
Career Highlights
Randal D King is currently employed at McGean-Rohco, Inc., where he continues to innovate in the field of plating processes. His work has been instrumental in improving the efficiency and longevity of plating solutions used in the manufacturing of printed circuit boards.
Collaborations
Throughout his career, Randal has collaborated with notable coworkers such as Americus C Vitale and John R Dodd. These collaborations have contributed to the development of his innovative plating processes.
Conclusion
Randal D King is a distinguished inventor whose work in plating processes has significantly impacted the manufacturing of multilayer printed circuit boards. His innovative patents demonstrate a commitment to enhancing efficiency and sustainability in the industry.