Location History:
- Souraku, JP (1992)
- Kyoto, JP (1996 - 2008)
Company Filing History:
5 out of 27,375 
3 out of 655 
1 out of 16,453 
Years Active: 1992-2008
Title: Shigeki Sawada: Innovator in Bipolar Transistor Technology
Introduction
Shigeki Sawada is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of bipolar transistors. With a total of 10 patents to his name, Sawada's work has had a lasting impact on the industry.
Latest Patents
One of Sawada's latest patents involves a bipolar transistor and a method for fabricating the same. This innovative bipolar transistor includes a silicon single crystalline layer serving as a collector, along with a single crystalline Si/SiGeC layer and a polycrystalline Si/SiGeC layer formed on the silicon single crystalline layer. The design features an oxide film with an emitter opening portion, an emitter electrode, and an emitter layer. An intrinsic base layer is formed on the single crystalline Si/SiGeC layer, while part of the single crystalline Si/SiGeC layer, the polycrystalline Si/SiGeC layer, and the Co silicide layer together form an external base layer. The thickness of the emitter electrode is carefully set to ensure that boron ions implanted into the emitter electrode and diffused therein do not reach the emitter-base junction portion.
Career Highlights
Throughout his career, Shigeki Sawada has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Matsushita Electronics Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Sawada has collaborated with esteemed colleagues, including Teruhito Ohnishi and Koichiro Yuki. These partnerships have fostered an environment of innovation and creativity, leading to the development of advanced technologies in the field.
Conclusion
Shigeki Sawada's contributions to bipolar transistor technology and his extensive patent portfolio highlight his role as a key innovator in the semiconductor industry. His work continues to influence the development of advanced electronic devices.