This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignee: Sumco Corporation. Active years: 2026.
Company Filing History:
Years Active: 2026
Title: Kohtaroh Koga: Innovator in Silicon Wafer Technology
Introduction
Kohtaroh Koga is a notable inventor based in Nagasaki, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of silicon wafers. His innovative work has led to advancements that are crucial for various electronic applications.
Latest Patents
Koga holds a patent for a silicon wafer and epitaxial silicon wafer. This patent describes a silicon wafer where the dopant is phosphorus, with a resistivity ranging from 0.5 mΩ·cm to 1.2 mΩ·cm. Additionally, the carbon concentration in the wafer is specified to be 3.0×10 atoms/cm³ or more. Notably, the carbon concentration decreases by 10% or more near the surface of the silicon wafer compared to the center depth.
Career Highlights
Koga is currently employed at Sumco Corporation, a leading company in the semiconductor industry. His work at Sumco has allowed him to focus on enhancing the quality and performance of silicon wafers, which are essential components in modern electronics.
Collaborations
Throughout his career, Koga has collaborated with talented individuals such as Naoya Nonaka and Yasuhito Narushima. These collaborations have fostered an environment of innovation and have contributed to the success of their projects.
Conclusion
Kohtaroh Koga's contributions to silicon wafer technology exemplify the impact of innovative thinking in the semiconductor industry. His patent and work at Sumco Corporation highlight his role as a key player in advancing electronic materials.