Yuuichi Harada

Title: Yuuichi Harada: Innovator in Semiconductor Technology

Introduction

Yuuichi Harada is a prominent inventor based in Nagano, Japan. He has made significant contributions to the field of semiconductor technology, holding three patents that showcase his innovative approach to device design and functionality.

Latest Patents

One of his latest patents is for a high power semiconductor device featuring a Schottky barrier diode. This semiconductor device is designed to prevent the destruction of elements and/or misoperation of circuits caused by parasitic effects from parasitic transistors when a MOSFET of a bridge circuit is formed on a single chip. The design includes a Schottky junction created by placing an anode electrode in an n-well region, which integrates a source region, a drain region, and a p-well region of a lateral MOSFET. The Schottky barrier diode, which is a majority carrier device, is connected in parallel with a PN junction that is not forward-biased, thereby suppressing parasitic effects.

Another notable patent is for a semiconductor device and method of manufacturing the same. This invention involves a lateral MOSFET and a method for its formation, which includes a p-type semiconductor substrate and a first n-type well on the surface of the substrate. The design features an n-type drain region, a p-type well, and an n-type source region, along with a gate oxide film and a gate electrode. The configuration aims to enhance the punch-through breakdown voltage, making it suitable for high-side switch applications.

Career Highlights

Yuuichi Harada has worked with notable companies such as Fuji Electric Co., Ltd. and Fuji Electric Device Technology Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in semiconductor technology.

Collaborations

Throughout his career, Harada has collaborated with talented individuals, including Naoki Kumagai and Yoshihiro Ikura. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Yuuichi Harada's work in semiconductor technology exemplifies his commitment to innovation and excellence. His patents reflect a deep understanding of the complexities involved in semiconductor design, making him a significant figure in the field.