Location History:
- Niiza, JP (2013 - 2018)
- Saitama, JP (2017 - 2018)
Company Filing History:
4 out of 644 
1 out of 6,079 
Years Active: 2013-2018
Title: Ryohei Baba: Innovator in Semiconductor Technology
Introduction
Ryohei Baba is a prominent inventor based in Niiza, Japan, known for his contributions to semiconductor technology. With a total of 5 patents, Baba has made significant advancements in the field, particularly in the design and reliability of semiconductor devices.
Latest Patents
One of Baba's latest patents focuses on a highly reliable semiconductor device that utilizes a thick passivation layer. This innovative design features a protective film that covers most of the semiconductor substrate's surface, leaving only a portion above the metal wiring layer exposed. The passivation layer consists of a first silicon nitride film, a silicon oxide film, and an organic film made of polyimide. This configuration ensures that the silicon oxide and organic films cover the electrode layer, while the first silicon nitride film is exclusively formed on the insulation layer.
Another notable patent involves a semiconductor device with a gate insulating film formed on the inner wall of a trench. This device includes a semiconductor substrate with a drift region, a body region, and an impurity region. The design incorporates a trench that reaches the drift region, a control electrode within the trench, and an oxide film between the trench's inner wall and the control electrode. This innovative approach enhances the performance and efficiency of semiconductor devices.
Career Highlights
Throughout his career, Ryohei Baba has worked with esteemed companies such as Sanken Electric Co., Ltd. and Kyocera Document Solutions Inc. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Baba has collaborated with notable colleagues, including Tomonori Hotate and Hiroshi Shikauchi. These partnerships have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Ryohei Baba's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in semiconductor devices, ensuring greater reliability and efficiency in technology.