Yasushi Higuchi

Title: Yasushi Higuchi: Innovator in Semiconductor Technology

Introduction

Yasushi Higuchi is a prominent inventor based in Okazaki, Japan, known for his significant contributions to semiconductor technology. With a total of 17 patents to his name, he has made remarkable advancements in the field, particularly in the development of semiconductor devices.

Latest Patents

One of Higuchi's latest patents involves a semiconductor device that includes a conductive substrate, a channel forming layer, a first electrode, and a second electrode. This innovative device features a channel forming layer located above the conductive substrate, which includes at least one hetero-junction structure. The hetero-junction structure consists of a first GaN-type semiconductor layer providing a drift region and a second GaN-type semiconductor layer with a greater bandgap energy than the first. The total fixed charge quantity in these layers ranges from 0.5×10 to 1.5×10 cm. This design enhances the break-down voltage while reducing on-resistance.

Another notable patent is for a nitride semiconductor device that includes a horizontal switching device. This device comprises a substrate, a channel forming layer, a source region, a drain region, and a gate region. The source and drain regions are arranged apart from each other along a plane of the substrate, while the gate region, formed of a p-type semiconductor layer, is positioned between them. The gate region is divided into multiple parts, which helps decrease on-resistance while maintaining a high breakdown voltage.

Career Highlights

Higuchi has worked with notable companies such as Denso Corporation and Nippondenso Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Throughout his career, Yasushi Higuchi has collaborated with esteemed colleagues, including Hiroyuki Yamane and Tetsuo Fujii. These partnerships have fostered a collaborative environment that has led to significant advancements in their respective fields.

Conclusion

Yasushi Higuchi's contributions to semiconductor technology through his innovative patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence the development of advanced semiconductor devices, showcasing the importance of innovation in technology.