Norihiko Kiritani

Title: Norihiko Kiritani: Innovator in Semiconductor Technology

Introduction

Norihiko Kiritani is a prominent inventor based in Yokosuka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on enhancing the performance and efficiency of semiconductor devices.

Latest Patents

Kiritani's latest patents include a groundbreaking semiconductor device that features a junction element designed to improve conductivity. In this device, when a forward voltage is applied, a depletion layer is formed in a semiconductor layer, which prevents electrons in the electrode layer from moving into the semiconductor layer. This design allows a majority of holes in the semiconductor layer to reach the electrode layer while diffusing into the semiconductor layer, thus serving as an effective conductor for holes. The invention is applicable to various semiconductor materials, including diamond, zinc oxide, aluminum nitride, and boron nitride, as well as silicon and silicon carbide under specific conditions.

Another notable patent is a method for manufacturing silicon carbide devices using a water-rich anneal process. This method involves depositing a polysilicon film above a silicon carbide substrate, delineating the film into the required pattern, and annealing the substrate in a water-rich environment. This innovative approach selectively grows a thick localized thermal oxide film above the substrate, facilitating the formation of source/drain regions and substrate contact regions.

Career Highlights

Throughout his career, Kiritani has worked with esteemed organizations such as Nissan Motor Company Limited and the National Institute of Advanced Industrial Science and Technology. His experience in these companies has contributed to his expertise in semiconductor technology and innovation.

Collaborations

Kiritani has collaborated with notable colleagues, including Makoto Uchiyama and Takatoshi Noguchi. These partnerships have further enriched his research and development efforts in the semiconductor field.

Conclusion

Norihiko Kiritani's contributions to semiconductor technology through his innovative patents and collaborations highlight his role as a leading inventor in this critical industry. His work continues to influence advancements in semiconductor devices and manufacturing processes.