Company Filing History:
4 out of 52,751 
1 out of 2,916 
Years Active: 1985-1989
Title: Kiyoshi Fukuda: Innovator in Semiconductor Technology
Introduction
Kiyoshi Fukuda is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work has advanced the understanding and manufacturing processes of semiconductor devices.
Latest Patents
One of Fukuda's latest patents is for a dielectrically isolated semiconductor substrate. This innovation involves a semiconductor wafer substrate that includes first and second semiconductive layers bonded together using a direct bonding technique, with an insulative layer sandwiched in between. The first semiconductive layer is a silicon layer with a (100) or (110) crystal surface orientation, while the second layer has a (111) crystal surface orientation. The process concludes with the removal of a peripheral portion of the substrate to create a smaller size with a newly formed orientation flat.
Another significant patent is a method of manufacturing a compound semiconductor apparatus. This method includes mirror-polishing the surfaces of two compound semiconductor substrates, bringing them into contact in a clean atmosphere, and annealing them to create a bonded structure with excellent electrical characteristics at the junction interface.
Career Highlights
Fukuda has worked with prominent companies in the technology sector, including Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Throughout his career, Fukuda has collaborated with esteemed colleagues such as Masaru Shimbo and Kazuyoshi Furukawa. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Kiyoshi Fukuda's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant innovator in the field. His work continues to influence the industry and pave the way for future advancements.