Location History:
- Yokohama, JP (1990)
- Kanagawa, JP (1998 - 2012)
- Hadano, JP (2013 - 2015)
- Tokyo, JP (2006 - 2017)
Company Filing History:
4 out of 189 
3 out of 22 
3 out of 35 
Years Active: 1990-2017
Title: Kazuhiko Kashima: Innovator in Semiconductor Technology
Introduction
Kazuhiko Kashima is a prominent inventor based in Hadano, Japan, known for his significant contributions to semiconductor technology. With a total of 11 patents to his name, he has developed innovative methods that enhance the manufacturing and measurement processes in the semiconductor industry.
Latest Patents
Kashima's latest patents include a calibration curve formation method, an impurity concentration measurement method, and a semiconductor wafer manufacturing method. The calibration curve formation method involves ion-implanting different doses of an impurity into multiple first samples. It measures the intensity of photoluminescence from the impurity using photoluminescence spectroscopy for both the first samples and a second sample made of the same semiconductor. This method allows for the formation of a calibration curve based on the implanted impurity amount, photoluminescence intensity, and impurity concentration measured by alternative methods. Additionally, his silicon wafer manufacturing method aims to prevent void defects in the bulk region, which can lead to contamination and slip generation during device processing. This method includes a heat-treating process designed to reduce crystal defects near the wafer surface, ensuring a defect-free region for device activity.
Career Highlights
Throughout his career, Kazuhiko Kashima has worked with notable companies such as Toshiba Ceramics Co., Ltd. and GlobalWafers Japan Co., Ltd. His experience in these organizations has allowed him to refine his expertise in semiconductor technologies and contribute to advancements in the field.
Collaborations
Kashima has collaborated with esteemed colleagues, including Koji Izunome and Hiromichi Isogai. Their joint efforts have further propelled innovations in semiconductor manufacturing and measurement techniques.
Conclusion
Kazuhiko Kashima's work in semiconductor technology exemplifies the impact of innovative thinking in the industry. His patents and collaborations highlight his commitment to advancing the field and improving manufacturing processes.
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.