Sakae Kubo

Title: Sakae Kubo: Innovator in Semiconductor Technology

Introduction

Sakae Kubo is a prominent inventor based in Takasaki, Japan, known for his significant contributions to semiconductor technology. With a total of 13 patents to his name, Kubo has made remarkable advancements in the field, particularly in the fabrication of semiconductor devices.

Latest Patents

One of Kubo's latest patents involves a method of fabricating a semiconductor device featuring a Metal-Insulator-Semiconductor Field-Effect Transistor (MISFET) with a trench gate structure. In this innovative method, a trench is formed from the major surface of a semiconductor layer of first conductivity type, which serves as a drain region. A gate insulating film, consisting of a thermal oxide film and a deposited film, is created over the internal surface of the trench. After forming a gate electrode within the trench, impurities are introduced into the semiconductor substrate to create a channel forming region of second conductivity type. Additionally, impurities are introduced into this region to form a source region of first conductivity type.

Career Highlights

Throughout his career, Sakae Kubo has worked with notable companies, including Hitachi ULSI Systems Co., Ltd. His work has significantly impacted the semiconductor industry, leading to advancements that enhance device performance and efficiency.

Collaborations

Kubo has collaborated with esteemed colleagues, including Yoshito Nakazawa and Sumito Numazawa, who have contributed to his research and development efforts in semiconductor technology.

Conclusion

Sakae Kubo's innovative work in semiconductor fabrication has established him as a key figure in the industry. His patents reflect a deep understanding of semiconductor technology and a commitment to advancing the field.