Keiichi Kajiyama

Title: Innovations by Keiichi Kajiyama

Introduction

Keiichi Kajiyama is a prominent inventor based in Ota-ku, Japan. He has made significant contributions to the field of optical device processing, holding a total of 14 patents. His innovative approaches have advanced the technology used in wafer processing and optical devices.

Latest Patents

Kajiyama's latest patents include a "Dividing method for wafer having die bonding film attached to the back side thereof." This method involves dividing a wafer into individual devices along pre-formed division lines. A protective member is placed on the front of the wafer, and the back is ground to a specific thickness. A laser beam is applied from the back along the division lines, creating modified layers that facilitate the division of the wafer into individual devices. Another notable patent is the "Optical device wafer processing method," which details a process for attaching a transparent protective plate to a sapphire substrate. This method includes steps for grinding the substrate, forming modified layers with a laser, and ultimately dividing the optical device wafer into individual devices.

Career Highlights

Kajiyama is currently employed at Disco Corporation, where he continues to innovate in the field of wafer processing. His work has been instrumental in developing methods that enhance the efficiency and effectiveness of optical device manufacturing.

Collaborations

Throughout his career, Kajiyama has collaborated with notable colleagues, including Takatoshi Masuda and Kazuma Sekiya. These partnerships have contributed to the advancement of technology in their field.

Conclusion

Keiichi Kajiyama's contributions to the field of optical device processing through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements.