Koji Azuma

Title: Koji Azuma: Innovator in Semiconductor Technology

Introduction

Koji Azuma is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, particularly through his innovative designs and patents. His work has had a lasting impact on the development of electronic devices.

Latest Patents

One of Koji Azuma's notable patents is for a heterojunction bipolar transistor and semiconductor integrated circuit device. This invention features a heterojunction bipolar transistor that boasts a raised breakdown voltage while restraining the degradation of the rising characteristic of the I-V characteristic. The design includes a collector region composed of first, second, and third collector layers of semiconductor. The first collector layer contacts the sub-collector region, while the second collector layer has a narrower band gap than the first and contacts the base region. The third collector layer is strategically placed between the first and second layers and has a higher doping concentration than the second layer. This innovative design enhances the performance of semiconductor devices.

Career Highlights

Koji Azuma is currently associated with NEC Compound Semiconductor Devices, Ltd., where he continues to push the boundaries of semiconductor technology. His expertise and innovative mindset have positioned him as a key player in the industry.

Collaborations

Throughout his career, Koji Azuma has collaborated with talented individuals such as Takaki Niwa and Hidenori Shimawaki. These collaborations have fostered an environment of innovation and creativity, leading to advancements in semiconductor technology.

Conclusion

Koji Azuma's contributions to the field of semiconductor technology, particularly through his patent for a heterojunction bipolar transistor, highlight his role as an influential inventor. His work continues to inspire advancements in electronic devices and semiconductor applications.