Location History:
- Saga, JP (2000 - 2003)
- Tokyo, JP (2004 - 2012)
Company Filing History:
6 out of 90 
3 out of 597 
2 out of 929 Years Active: 2000-2012
Title: Shinsuke Sadamitsu: Innovator in Silicon Wafer Technology
Introduction
Shinsuke Sadamitsu is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of silicon wafer technology. With a total of 11 patents to his name, he has made remarkable advancements that enhance the performance and reliability of silicon wafers used in various electronic applications.
Latest Patents
One of his latest patents focuses on high resistivity silicon wafers. These wafers are characterized by an interstitial oxygen concentration of 8×10 atoms/cm or less and a Bulk Micro Defect (BMD) density of 5×10 pieces/cm or less. The electric resistivity of these wafers is 100 Ω·cm or more. Furthermore, these high resistivity silicon wafers are cut from crystal regions devoid of Crystal Originated Particles (COP) and are treated to ensure that neither COP nor oxygen precipitates exist within a depth of 5 μm from the wafer surface. This innovative approach results in wafers with enhanced mechanical strength and optimal characteristics for silicon-on-insulator (SOI) structures and epitaxial structures.
Another significant patent involves the process for producing high-resistance silicon wafers. By utilizing oxygen-containing silicon wafers obtained through the Czochralski (CZ) method, and implementing a two-step heat treatment process, Shinsuke Sadamitsu has developed high-resistance silicon wafers that maintain their properties even after device manufacturing heat treatments. This process also allows for the production of excellent epitaxial wafers and SOI wafers, which can be applied in high-frequency communication devices and analog/digital hybrid devices.
Career Highlights
Throughout his career, Shinsuke Sadamitsu has worked with notable companies such as Sumitomo Mitsubishi Silicon Corporation and Sumco Corporation. His experience in these organizations has contributed to his expertise in silicon wafer technology and innovation.
Collaborations
Shinsuke has collaborated with esteemed colleagues, including Nobumitsu Takase and Masataka Hourai, further enhancing the impact of his work in the field.
Conclusion
Shinsuke Sadamitsu's innovative contributions to silicon wafer technology have positioned him as a leading inventor in the industry. His patents and processes not only improve the performance of silicon wafers but also expand their applications in modern electronic devices.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.