Nobuhiro Saga

Title: Nobuhiro Saga: Innovator in Group III Nitride Semiconductor Technology

Introduction

Nobuhiro Saga is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of group III nitride semiconductor devices. With a total of 9 patents to his name, his work has had a substantial impact on the industry.

Latest Patents

Among his latest patents are innovative designs for group III nitride semiconductor devices and methods for their fabrication. One notable patent describes a group III nitride semiconductor device that features a p-type region formed on a semi-polar plane substrate. This invention specifies that the concentration of hydrogen in the p-type region should be 25% or less of the concentration of the p-type dopant, while the concentration of oxygen should be 5×10 atoms/cm or lower. Additionally, it outlines specific angular requirements between the normal axis of the substrate's primary surface and the c-axis, enhancing the device's performance.

Another significant patent involves a group III nitride semiconductor laser device, which includes a laser structure and an electrode. This device is designed with a hexagonal III-nitride semiconductor support base and a semiconductor region on its semipolar primary surface. The semiconductor region consists of a first cladding layer of a first conductivity type GaN-based semiconductor, a second cladding layer of a second conductivity type GaN-based semiconductor, and an active layer situated between the two cladding layers.

Career Highlights

Nobuhiro Saga has worked with notable companies, including Sumitomo Electric Industries, Limited. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.

Collaborations

Throughout his career, Nobuhiro has collaborated with esteemed colleagues such as Kazuya Ohmatsu and Kenichi Sato. These partnerships have fostered a creative environment that has led to groundbreaking advancements in semiconductor technology.

Conclusion

Nobuhiro Saga's contributions to the field of group III nitride semiconductors are noteworthy. His innovative patents and collaborations highlight his role as a leading inventor in this specialized area. His work continues to influence the development of advanced semiconductor devices.