Location History:
- Yokohama, JP (2014)
- Kawasaki, JP (1997 - 2017)
Company Filing History:
9 out of 39,245 
8 out of 1,674 
2 out of 467 
Years Active: 1997-2017
Title: Innovations of Yoshiyuki Nakao in Semiconductor Technology
Introduction
Yoshiyuki Nakao is a prominent inventor based in Kawasaki, Japan, known for his extensive contributions to the field of semiconductor technology. With a remarkable portfolio of 19 patents, Nakao has developed innovative solutions that enhance semiconductor devices and manufacturing methods.
Latest Patents
Among his latest patents is a groundbreaking semiconductor device that incorporates a semiconductor substrate, an oxygen-containing insulating film, and a series of films designed for enhanced functionality. The innovative structure includes a copper-containing first film and a second film, with a manganese-containing oxide layer strategically positioned for optimal performance. This device integrates a copper interconnection formed through an electroplating method, followed by a brief heat treatment at a temperature between 80°C and 120°C.
Another significant patent details a manufacturing method for semiconductor devices and an etching apparatus. This apparatus comprises a process unit and a control unit, which utilize an OES detector to measure plasma emission intensity. By employing nonlinear regression analysis to generate a precise regression formula, Nakao's invention can determine the etching end point with high accuracy, thus improving the efficiency and effectiveness of the etching process.
Career Highlights
Yoshiyuki Nakao's professional journey includes significant roles at notable companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His work in these organizations has played a crucial role in shaping advancements within the semiconductor industry.
Collaborations
Throughout his career, Nakao has worked alongside esteemed colleagues, including Noriyoshi Shimizu and Nobuyuki Ohtsuka. These collaborations have enabled valuable exchanges of ideas and innovations, further pushing the boundaries of semiconductor research and development.
Conclusion
Yoshiyuki Nakao's contributions to semiconductor technology exemplify the spirit of innovation and dedication to enhancing manufacturing processes and device performances. His patented inventions not only reflect his expertise but also pave the way for future advancements in the industry. With continued research and collaboration, Nakao remains a key figure in the evolution of semiconductor technologies.