Toshikazu Sugiura

Title: The Innovations of Toshikazu Sugiura

Introduction

Toshikazu Sugiura is a notable inventor based in Okazaki, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of silicon carbide (SiC) materials. With a total of two patents to his name, Sugiura's work has had a considerable impact on the industry.

Latest Patents

Sugiura's latest patents include a method for producing a SiC epitaxial wafer. This method involves an epitaxial growth step where an Si-based raw material gas, a C-based raw material gas, and a gas containing a Cl element are fed to the surface of a SiC single crystal substrate. The growth conditions are carefully controlled, with a film deposition pressure of 30 torr or less, a Cl/Si ratio ranging from 8 to 12, a C/Si ratio between 0.8 and 1.2, and a growth rate of 50 µm/h or more from the initial growth stage. Another significant patent is for a flyback diode and on-board power source device. This invention features a SiC Schottky-barrier diode and a SiPiN diode connected in parallel. The design takes advantage of the differing thermal properties of the diodes to manage current flow effectively, thereby suppressing electro migration in solder layers.

Career Highlights

Throughout his career, Sugiura has worked with prominent companies such as Showa Denko K.K. and the Central Research Institute of Electric Power Industry. His experience in these organizations has allowed him to refine his expertise in semiconductor technologies and contribute to innovative solutions in the field.

Collaborations

Sugiura has collaborated with notable colleagues, including Keisuke Fukada and Naoto Ishibashi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Toshikazu Sugiura's contributions to semiconductor technology through his patents and collaborations highlight his role as an influential inventor in the industry. His work continues to pave the way for advancements in SiC materials and devices.