Company Filing History:
Years Active: 1992-1998
Title: Innovations of Tosiharu Kikuchi
Introduction
Tosiharu Kikuchi is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor packaging through his innovative methods. With a total of 2 patents, Kikuchi's work has had a considerable impact on the industry.
Latest Patents
Kikuchi's latest patents include a method of producing fine metal spheres of uniform size. This method involves creating soft fine metal spheres from materials selected from soft metals and soft alloys. A plurality of fine wires made of the material are arranged in parallel on a flat base plate. Each wire has a diameter of not more than 100 µm. The fine wires are cut into wire chips of equal mass, with a chip length/chip diameter ratio between 5 and 100, using a cutting jig with cutting edges arranged at a constant pitch. The resulting wire chips are spaced apart to prevent merging when melted. These chips are then heated to a temperature just above their melting point, forming molten spheres that are cooled to create solid spheres with a diameter within about 5% of the desired size.
Another significant patent by Kikuchi is a method of bonding bumps to leads of tab tape, along with an apparatus for this process. This method includes preparing a substrate with through-holes that prevent bumps from passing through, provisional arrangement of bumps, and bonding them to the leads of the TAB tape. This innovative approach enhances the efficiency and effectiveness of semiconductor packaging.
Career Highlights
Kikuchi is currently employed at Nippon Steel Corporation, where he continues to develop and refine his innovative techniques. His work has been instrumental in advancing the technology used in semiconductor packaging, making it more efficient and reliable.
Collaborations
Throughout his career, Kikuchi has collaborated with notable colleagues such as Tadakatsu Maruyama and Yasuhide Ohno. These collaborations have contributed to the success of his inventions and the advancement of technology in their field.
Conclusion
Tosiharu Kikuchi's contributions to the field of semiconductor packaging through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry, making him a significant figure in the realm of inventions.