Osamu Shiroma

Title: Osamu Shiroma: Innovator in Photodiode Technology

Introduction

Osamu Shiroma is a notable inventor based in Ota, Japan. He has made significant contributions to the field of semiconductor devices, particularly in the development of photodiodes. His innovative work has led to the creation of a unique semiconductor device that addresses specific challenges in the industry.

Latest Patents

Shiroma holds a patent for a "Photodiode built-in semiconductor device with dummy photodiode." This invention is designed to prevent internal peripheral circuits from erroneously operating due to incident light entering at an angle that is not perpendicular to the top surface of the semiconductor chip. The semiconductor chip includes a photodiode and its peripheral circuits, with a light shielding film made of aluminum metallization covering the region outside the photodiode. An isolation region is arranged at the outermost portion of the chip, and a dummy island surrounds the entire chip. A low resistance region is formed in the surface of the dummy island, and the dummy photodiode is created by applying a reverse bias potential across the PN junction defined between the isolation region and the dummy island.

Career Highlights

Osamu Shiroma is associated with Sanyo Electric Co., Ltd., where he has been able to apply his expertise in semiconductor technology. His work has been instrumental in advancing the capabilities of photodiode devices, making them more efficient and reliable.

Collaborations

Shiroma has collaborated with Keiji Mita, contributing to the development of innovative technologies in the semiconductor field.

Conclusion

Osamu Shiroma's contributions to photodiode technology exemplify the impact of innovative thinking in the semiconductor industry. His patent reflects a commitment to solving complex problems and enhancing device performance.