This inventor holds 3 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Vlsi Engineering Corp., Hitachi Ulsi Engineering Corp.. Active years: 1993-1997.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Fussa, JP (1993)
- Ohme, JP (1996 - 1997)
Company Filing History:
3 out of 42,731 
2 out of 182 
1 out of 87 Years Active: 1993-1997
Title: Masahiko Nishiuma: Innovator in Semiconductor Technology
Introduction
Masahiko Nishiuma is a prominent inventor based in Ohme, Japan, known for his contributions to semiconductor technology. With a total of 3 patents, he has made significant advancements in the field, particularly in the design and fabrication of semiconductor integrated circuit devices.
Latest Patents
Nishiuma's latest patents include a semiconductor integrated circuit device and a fabrication method thereof. This innovative semiconductor device is created by forming first metal balls on electrode pads of a semiconductor chip. Each of these metal balls can feature a sharp-tipped anchor, which is flattened slightly to equalize their height. The first metal balls are then bonded to electrodes on a substrate with wirings by embedding the anchors into the electrodes. Alternatively, second metal balls can be formed on the electrodes and flattened to achieve uniform height. The bonding process is enhanced by heating the first and second metal balls to soften the latter during the bonding step. Another notable patent involves a semiconductor integrated device that features parallel signal lines, designed for characteristic impedance matching of signal transmission lines in a package carrying a high-speed LSI semiconductor chip.
Career Highlights
Throughout his career, Masahiko Nishiuma has worked with notable companies such as Hitachi, Ltd. and Hitachi VLSI Engineering Corporation. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.
Collaborations
Nishiuma has collaborated with esteemed colleagues, including Chiyoshi Kamada and Takashi Harada, further enhancing his work in the semiconductor field.
Conclusion
Masahiko Nishiuma's contributions to semiconductor technology through his patents and career achievements highlight his role as a significant innovator in the industry. His work continues to influence advancements in semiconductor devices and fabrication methods.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile