Company Filing History:
Years Active: 1991-1992
Title: Kenji Unetsubo: Innovator in Semiconductor Technology
Introduction
Kenji Unetsubo is a prominent inventor based in Tatsuno, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His innovative work focuses on improving the efficiency and reliability of semiconductor manufacturing processes.
Latest Patents
One of Kenji Unetsubo's latest patents involves a dopant film and methods of diffusing impurities into semiconductor wafers. This dopant film consists of an organic binder, an inorganic binder, and a compound of an impurity element for diffusion. Both surfaces of the dopant film are coated with adhesive, and releasable sheets sandwich the film. This design allows for automated alternate stacking with semiconductor wafers, which significantly reduces labor costs. The automation of this stacking process minimizes the risk of wafer breakage, thereby decreasing the breakage rate. Additionally, the improved adhesion of the semiconductor wafer leads to a reduction in the variation of diffusion depth. The manufacturing method also includes steps for impurity diffusion into both surfaces, dividing the wafer into two along its thickness, and polishing each divided wafer to a mirror finish opposite the impurity diffusion layer. This method reduces material loss per wafer compared to conventional techniques.
Career Highlights
Kenji Unetsubo is associated with Kabushiki Kaisha Toshiba, a leading company in the technology sector. His work has been instrumental in advancing semiconductor manufacturing techniques, making them more efficient and reliable.
Collaborations
Kenji has collaborated with notable colleagues such as Masaburo Iwabuchi and Hideyoshi Ito, contributing to various projects that enhance semiconductor technology.
Conclusion
Kenji Unetsubo's innovative contributions to semiconductor technology demonstrate his commitment to improving manufacturing processes. His patents reflect a deep understanding of the challenges in the industry and provide solutions that enhance efficiency and reliability.