Chunghee Chang

Title: **Innovative Mind: Chunghee Chang and His Contributions to Magnetic Recording Technology**

Introduction

Chunghee Chang is a prominent inventor based in Fremont, California, renowned for his significant contributions to the field of magnetic recording technology. With a portfolio of three patents, Chang has been instrumental in the advancement of perpendicular magnetic recording media. His inventive spirit and commitment to innovation have paved the way for more efficient and effective storage solutions in an ever-evolving technological landscape.

Latest Patents

Among his latest patents, Chang has developed groundbreaking technologies aimed at enhancing magnetic recording media. One of his notable inventions is the "Seed Layer Comprising FCC Structure," which presents an apparatus and method for improving perpendicular magnetic recording media. This invention not only provides a cost-effective method of fabricating media but does so with reduced ruthenium (Ru) content in the interlayer structure while meeting strict media performance requirements.

The invention describes a perpendicular magnetic recording medium that comprises a non-magnetic substrate, with a layer stack that includes a magnetically soft underlayer, a non-magnetic seed layer, and an interlayer structure that aligns the perpendicular magnetic recording material. Furthermore, the interlayer structure is intricately designed, featuring a chromium alloy and an upper interlayer, demonstrating Chang's deep understanding of material science and engineering.

Another patent by Chang is titled "Granular Perpendicular Media Interlayer for a Storage Device," echoing similar principles of design and efficiency as his first patent. This innovation also focuses on enhancing perpendicular magnetic recording media and emphasizes a cost-effective approach in its fabrication.

Career Highlights

Chunghee Chang is presently affiliated with Seagate Technology Incorporated, where he continues to push the boundaries of innovation in magnetic storage technology. His career has been marked by a commitment to developing systems that not only meet performance needs but also prioritize sustainability through reduced material usage.

Collaborations

In his pursuit of excellence, Chang collaborates with talented colleagues, including Shoutao Wang and Weilu Hang Xu. Their combined expertise fosters a dynamic research environment, leading to cutting-edge advancements in technology within the corporation.

Conclusion

Chunghee Chang exemplifies the qualities of a visionary inventor. His work in magnetic recording technology not only reflects his commitment to innovation but also serves as an inspiration for future developments in the storage industry. As technology continues to evolve, inventors like Chang are essential for driving progress and implementing sustainable solutions that meet the demands of modern society.