Location History:
- Chiyoda-ku, JP (2014 - 2018)
- Tokyo, JP (1995 - 2024)
Company Filing History:
9 out of 15,906 
5 out of 210 
Years Active: 1995-2025
Title: Masashi Sakai: Innovator in Silicon Carbide Technology
Introduction
Masashi Sakai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the manufacturing of silicon carbide epitaxial wafers. With a total of 14 patents to his name, Sakai's work has had a substantial impact on the industry.
Latest Patents
One of Sakai's latest patents is a method of manufacturing silicon carbide epitaxial wafers. This innovative method is designed to suppress the occurrence of triangular defects during the manufacturing process. It involves an etching process at a first temperature using etching gas that includes hydrogen. Following this, a flattening process is conducted at a second temperature, utilizing gas that includes hydrogen, silicon supply gas, and carbon supply gas. Finally, an epitaxial layer growth process is performed at a third temperature, ensuring that the temperatures satisfy the condition T > T > T.
Another notable patent is for a semiconductor device and semiconductor module. This device features a plate-shaped heat dissipation plate with multiple switching elements attached to one surface. It includes a first terminal that extends away from the heat dissipation plate and is connected to the switching elements. A sealing member is used to protect the components, and a cutout is strategically placed at the outer periphery of the heat dissipation plate.
Career Highlights
Throughout his career, Masashi Sakai has worked with leading companies in the industry, including Mitsubishi Electric Corporation and Yakult Honsha Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in semiconductor technology.
Collaborations
Sakai has collaborated with notable colleagues such as Hideyuki Yamatoya and Satoshi Kudo. Their combined expertise has fostered an environment of innovation and creativity, leading to advancements in their respective fields.
Conclusion
Masashi Sakai's contributions to semiconductor technology, particularly in silicon carbide manufacturing, have established him as a key figure in the industry. His innovative patents and collaborations reflect his commitment to advancing technology and improving manufacturing processes.