Jun Tomisawa

Title: Innovations by Jun Tomisawa

Introduction

Jun Tomisawa is a prominent inventor based in Chiyoda-ku, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 8 patents. His work focuses on improving the efficiency and reliability of electronic devices.

Latest Patents

One of his latest patents is a semiconductor device and power converter that enhances deterioration detection accuracy by utilizing the inductance of a bonding wire. This innovative semiconductor device features a first conductor pattern on an insulating substrate, through which the main current of the semiconductor die device flows. It also includes a second conductor pattern for sensing the potential of the surface electrode of the semiconductor die device. A voltage sensing unit is connected to both conductor patterns to detect potential differences during the switching of the semiconductor die device, while a deterioration detection unit monitors the first bonding wire's condition based on the sensed potential difference.

Another notable patent is for an electronic module and power module that detects peeling within the electronic module. This invention comprises a specified conductor, an insulating layer, a wiring layer, and a capacitance-to-voltage converter. The wiring layer contains a sense electrode that forms a capacitance with a portion of the specified conductor through the insulating layer. The capacitance-to-voltage converter outputs a voltage corresponding to the capacitance, providing valuable data for monitoring the module's integrity.

Career Highlights

Jun Tomisawa is currently employed at Mitsubishi Electric Corporation, where he continues to innovate and develop advanced technologies. His work has significantly impacted the semiconductor industry, leading to more reliable and efficient electronic devices.

Collaborations

Throughout his career, Jun has collaborated with notable colleagues, including Kenichi Morokuma and Kazuyasu Nishikawa. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Jun Tomisawa's contributions to semiconductor technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing the performance and reliability of electronic devices, making a lasting impact on the industry.