Location History:
- Tsukuba, JP (2005)
- Gifu, JP (2007)
- Gunma, JP (2006 - 2008)
Company Filing History:
4 out of 8,782 
1 out of 6,020 
Years Active: 2005-2008
Title: Tatsuya Fujishima: Innovator in Semiconductor Technology
Introduction
Tatsuya Fujishima is a notable inventor based in Gunma, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of four patents. His work focuses on improving the performance and reliability of semiconductor devices.
Latest Patents
Fujishima's latest patents include a method of manufacturing a semiconductor device with a capacitor and a transistor. This invention aims to prevent dielectric breakdown of a capacitor in a semiconductor device that has both a capacitor and a MOS transistor formed on the same semiconductor substrate. The method involves forming a SiO film as a gate insulation film on a P-type semiconductor substrate. A photoresist layer is selectively formed in the high voltage MOS transistor formation region, allowing for precise etching that protects the edges of trench isolation films adjacent to the capacitor formation region.
Another significant patent is for a semiconductor device that features an element isolation trench and a method of fabricating the same. This invention enhances the dielectric strength of the element isolation region by ensuring that the trench width at the upper end is larger than at the bottom surface. This design facilitates the proper embedding of an insulator, thereby preventing defects and improving the overall performance of the semiconductor device.
Career Highlights
Fujishima has worked with prominent companies in the electronics industry, including Sanyo Electric Co., Ltd. and Rohm Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Some of his notable coworkers include Katsumi Sameshima and Ryosuke Usui. Their collaboration has likely played a role in advancing the projects they have worked on together.
Conclusion
Tatsuya Fujishima is a distinguished inventor whose work in semiconductor technology has led to innovative solutions that enhance device performance and reliability. His contributions continue to impact the field significantly.