Koichi Kitaguro

Title: Koichi Kitaguro: Innovator in Semiconductor Technology

Introduction

Koichi Kitaguro is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on enhancing the performance and manufacturing processes of semiconductor devices.

Latest Patents

One of his latest patents is titled "Semiconductor device having MOSFET of trench structure and method for fabricating the same." This invention describes a semiconductor device with a cell region where transistor cells of a trench structure are arranged in a matrix form. A recessed trench is formed in a semiconductor layer, and a gate oxide film is created inside the trench. A gate electrode made of polysilicon is placed within the trench, allowing for effective contact with a gate wiring formed of a metal film. This design enables the formation of numerous transistor cells in a matrix, ensuring that the gate voltage can be sufficiently increased.

Another notable patent is the "Method for manufacturing semiconductor device." This invention involves the epitaxial growth of a semiconductor layer on a wafer surface that lacks mirror finishing and has irregularities. By introducing impurities of different conductivity types, a pn junction is formed in the epitaxially grown layer. The method also includes rapid thermal annealing, which allows for high-speed switching characteristics in a stable manner, avoiding issues such as heavy metal diffusion or corpuscular ray irradiation during manufacturing.

Career Highlights

Koichi Kitaguro is associated with Rohm Co., Ltd., a company known for its advancements in semiconductor technology. His work has significantly impacted the efficiency and effectiveness of semiconductor devices, contributing to the overall progress in the industry.

Collaborations

He has collaborated with notable coworkers, including Masaru Takaishi and Hiroki Takada, who have also contributed to the field of semiconductor technology.

Conclusion

Koichi Kitaguro's innovative work in semiconductor technology has led to the development of advanced devices and manufacturing methods. His contributions continue to influence the industry, showcasing the importance of innovation in technology.