Location History:
- Aichi-ken, JP (2013)
- Kiyosu, JP (2013 - 2023)
Company Filing History:
12 out of 3,083 
1 out of 1,140 
Years Active: 2013-2023
Title: Innovations of Yukihisa Ueno in Semiconductor Technology
Introduction
Yukihisa Ueno is a prominent inventor based in Kiyosu, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 12 patents. His work focuses on methods for producing semiconductor devices, showcasing his expertise and innovative approach in this critical area of technology.
Latest Patents
Ueno's latest patents include a method for producing semiconductor devices that involves the formation of an ion implanted region by implanting magnesium ions into a predetermined area of the surface of the first p-type layer. Following this, a second n-type layer is created on top of the first p-type layer and the ion implanted region. A trench is then formed through dry etching, reaching the first n-type layer. Heat treatment is subsequently applied to diffuse magnesium, resulting in a p-type impurity region at a specific depth from the surface of the first n-type layer beneath the ion implanted region. This innovative approach ensures that the width of the p-type impurity region closely matches the width of the first p-type layer divided by the trench.
Another notable patent is a method for manufacturing a semiconductor device that aims to protect the side portions of a trench from damage during ion implantation. This method includes several processes: stacking a p-type semiconductor layer on a first n-type semiconductor layer, ion implantation of impurities, heat treatment to activate the implanted impurities, groove formation, and the creation of the first electrode on an insulation film within the groove.
Career Highlights
Throughout his career, Yukihisa Ueno has worked with notable companies such as Toyoda Gosei Co., Ltd. and Toyota Central R&D Labs, Inc. His experience in these organizations has allowed him to refine his skills and contribute to advancements in semiconductor technology.
Collaborations
Ueno has collaborated with esteemed colleagues, including Toru Oka and Tohru Oka. These partnerships have further enriched his work and led to innovative solutions in the semiconductor field.
Conclusion
Yukihisa Ueno's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in this domain. His innovative methods continue to influence the development of advanced semiconductor devices.