Koichi Maegawa is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of silicon crystal production. With a total of 11 patents to his name, Maegawa has made remarkable advancements that have implications for various technological applications.

Latest Patents

Among his latest patents, Maegawa has developed a method for producing n-type silicon single crystals. This innovative technique involves pulling up monocrystalline silicon from a silicon melt that contains a main dopant in the form of red phosphorus. The resulting monocrystalline silicon exhibits an electrical resistivity ranging from 1.7 mΩcm to 2.0 mΩcm. Additionally, he has created a method for producing silicon single crystals through the Czochralski process, which allows for precise control of resistivity, ensuring it falls within a specified range.

Career Highlights

Maegawa is currently associated with Sumco Corporation, where he continues to push the boundaries of silicon crystal technology. His work has not only enhanced the efficiency of silicon production but has also contributed to the overall advancement of semiconductor technology.

Collaborations

Throughout his career, Maegawa has collaborated with notable colleagues, including Yasufumi Kawakami and Fukuo Ogawa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Koichi Maegawa's contributions to silicon crystal production exemplify the spirit of innovation in the field of materials science. His patents and ongoing work at Sumco Corporation continue to influence the industry and pave the way for future advancements.

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