Erik D Johnson

Title: The Innovative Contributions of Erik D Johnson

Introduction

Erik D Johnson is a notable inventor based in Ridge, NY (US). He has made significant contributions to the field of micromachining through his innovative patent. His work focuses on utilizing advanced X-ray technology to enhance the precision of photoresist machining.

Latest Patents

Erik D Johnson holds a patent for a "Method and apparatus for micromachining using hard X-rays." This patent describes an X-ray source, such as a synchrotron, that provides a significant spectral content of hard X-rays. The method allows for the exposure of relatively thick photoresist, ensuring that the exit surface receives a threshold dose sufficient for development, while the entrance surface is protected from destructive disruption. The X-ray beam is spectrally shaped to eliminate lower energy photons, allowing higher energy photons to effectively reach the photoresist target. This innovative approach enables machining of photoresists like polymethylmethacrylate to micron tolerances and depths of several centimeters, with the capability to expose multiple targets simultaneously.

Career Highlights

Erik D Johnson is associated with the Wisconsin Alumni Research Foundation, where he continues to advance his research and development efforts. His work has positioned him as a key figure in the field of micromachining, particularly in the application of hard X-ray technology.

Collaborations

Throughout his career, Erik has collaborated with esteemed colleagues such as David Peter Siddons and Henry Guckel. These collaborations have further enriched his research and contributed to the advancement of micromachining techniques.

Conclusion

Erik D Johnson's innovative work in micromachining using hard X-rays exemplifies the intersection of technology and precision engineering. His contributions continue to influence the field and pave the way for future advancements.