James J Hofmann

Title: Innovations of James J Hofmann

Introduction

James J Hofmann is a notable inventor based in Northfield, MN (US). He has made significant contributions to the field of materials science, particularly in the area of vapor deposition technologies. With a total of 3 patents, Hofmann's work has advanced the methods used in coating substrates with silicon-based compounds.

Latest Patents

Hofmann's latest patents include a "Method for coating substrates with silicon based compounds." This innovative technique involves depositing thin films of silicon-based compounds, especially silicon dioxide, through cathode reactive sputtering. The method utilizes a rotating cylindrical magnetron driven by a d.c. potential, resulting in a uniform film formation on large substrates with high deposition rates. Additionally, arcing typically associated with sputtering troublesome dielectric coatings, such as silicon oxides, is substantially eliminated.

Another significant patent is the "Controlled flow vaporizer." This vaporizing apparatus is designed to deliver precisely controlled, continuous, and monitored vapor flows for applications such as plasma-enhanced vapor deposition. The apparatus features a fluid passageway that includes a pumping device, a vaporizing device, and a flowing device, all in fluid communication. The vaporizing device effectively vaporizes liquid pumped from the pumping device and includes a heat sink layer, a heated layer, and a portion of the passageway sandwiched in between. This innovative apparatus can sustain a flow of organosilicon vapor at a flow rate of about 1 to 100 SCCM for extended periods.

Career Highlights

Hofmann is currently associated with The Boc Group, Inc., where he continues to develop and refine his innovative technologies. His work has been instrumental in enhancing the efficiency and effectiveness of vapor deposition processes.

Collaborations

Throughout his career, Hofmann has collaborated with notable colleagues, including Erik Bjornard and Donald V Jacobson. These collaborations have contributed to the advancement of technologies in their respective fields.

Conclusion

James J Hofmann's contributions to the field of materials science and vapor deposition technologies are noteworthy. His innovative patents reflect a commitment to advancing the methods used in coating substrates, which has significant implications for various industries. His work continues to inspire future innovations in the field.