John T Hachman

Title: **John T. Hachman: Innovator in Electrochemical Technology**

Introduction

John T. Hachman is a noteworthy inventor based in Stockton, California. He holds four patents, showcasing his contributions to the field of electrochemical technology. His innovative work has advanced the processes involved in electroforming and plating, particularly for high aspect ratio micro-parts.

Latest Patents

Hachman's most recent patents include two significant inventions. The first is a patent for an "Apparatus and method for electroforming high aspect ratio micro-parts." This invention entails a fixture designed to properly affix a workpiece within an electrochemical plating bath. The fixture enables any planar metallic or non-metallic substrate, like a silicon wafer, to be submerged deeply within the electrolytic cell while facing upwards. Furthermore, it ensures that the edges, backside, and electrical connections remain sealed and protected from the electrolyte during the process.

His second recent patent, titled "Apparatus and method for controlling plating uniformity," introduces an insulating shield that enhances current distribution in an electrochemical plating bath. Through numerical analysis, he evaluated how the shield's shape and position affect plating uniformity, demonstrating that it significantly improves average current density at the plating surface, especially in nickel deposition processes.

Career Highlights

Throughout his career, John T. Hachman has been affiliated with prominent organizations, including the United States of America as represented by the Department of Energy and Sandia Corporation. His work in these institutions has helped spearhead advancements in electrochemical applications.

Collaborations

Hachman has also collaborated with esteemed colleague William D. Bonivert, further enhancing the development and implementation of innovative solutions in the electrochemical field. Their teamwork has resulted in valuable insights and significant contributions to technology.

Conclusion

John T. Hachman's innovative work in the realm of electrochemical technology has positioned him as a significant contributor within the industry. With a focus on improving processes related to plating and micro-part fabrication, his patents reflect a dedication to advancing technology for practical applications. As he continues to innovate, the impact of his inventions will likely inspire further research and development in the field.