Richard Francis

Title: Innovations of Richard Francis in Semiconductor Technology

Introduction

Richard Francis, a prominent inventor based in Manhattan Beach, California, holds an impressive portfolio of 24 patents, primarily focused on advancements in semiconductor technology. His work reflects a commitment to enhancing the performance and efficiency of semiconductor devices.

Latest Patents

Among his latest innovations is the "Semiconductor device having increased switching speed." This patent describes a semiconductor device constructed from a thin float zone wafer where junctions are diffused into the top surface. The wafer undergoes a thickness reduction from the bottom surface, followed by the formation of a weak collector through boron diffusion. This weak collector is strategically activated in intermittent areas, accomplished either by impurity implant through a screening mask or by laser beam annealing in selected spots. This innovative approach results in a low implant dose, leading to reduced switching energy and enhanced switching speed compared to previous technologies.

Another significant invention is the "Trench IGBT with depletion stop layer." This design features a low Vnon punch-through trench IGBT made from non-epitaxial float zone silicon, with a depletion stop layer integrated at the bottom surface, optimizing its performance for various applications.

Career Highlights

Richard Francis's career has been marked by his contributions to renowned companies in the semiconductor industry. He has worked with International Rectifier Corporation and Qspeed Semiconductor Inc., where he played a crucial role in further developing semiconductor technologies.

Collaborations

Throughout his professional journey, Richard has collaborated with notable peers, including Chiu Ng and Ranadeep Dutta. These partnerships have contributed to advancing innovative solutions and enhancing the capabilities of semiconductor devices.

Conclusion

Richard Francis stands out as a key inventor in the field of semiconductor technology, evidenced by his 24 patents and continued contributions to the industry. His innovative designs, particularly in increasing switching speeds and optimizing device structure, have left a significant mark, promising to influence the future of semiconductor applications.