Katsuhiro Uchimura

Title: Katsuhiro Uchimura: Innovator in Semiconductor Technology

Introduction

Katsuhiro Uchimura is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 7 patents. His work focuses on enhancing the reliability and efficiency of semiconductor devices.

Latest Patents

Uchimura's latest patents include a semiconductor device and a method for manufacturing the same. In his semiconductor device patent, he describes a memory cell forming region that includes a dummy cell region. A plurality of fins, which are parts of a semiconductor substrate, protrude from the upper surface of an element isolation portion and are formed adjacent to each other. The distance between the fin closest to a dummy fin and the dummy fin is shorter than the distance between two adjacent fins. This design results in a lower position of the upper surface of the element isolation portion formed between two adjacent fins compared to that formed in a shunt region.

In his method of manufacturing a semiconductor device, Uchimura addresses the reliability of trench type MOSFETs. He prevents degradation due to short circuits or lowered withstand voltage between a trench gate electrode and a source region. This is achieved by forming poly-silicon films inside a trench in the semiconductor substrate and thermally diffusing phosphorus into each film. The process includes removing a silicon oxide film formed in the surface layer of the poly-silicon film and exposing an insulating film to form a trench gate electrode.

Career Highlights

Throughout his career, Uchimura has worked with notable companies such as Renesas Electronics Corporation and Renesas Technology Corporation. His expertise in semiconductor technology has made him a valuable asset in these organizations.

Collaborations

Uchimura has collaborated with esteemed colleagues, including Shuji Matsuo and Yasuko Yoshida. Their combined efforts have contributed to advancements in semiconductor technology.

Conclusion

Katsuhiro Uchimura's innovative work in semiconductor technology has led to significant advancements in the field. His patents reflect a commitment to improving the reliability and efficiency of semiconductor devices. Uchimura's contributions continue to influence the industry and inspire future innovations.