Hung-huei Liang

Title: Innovations of Inventor Hung-huei Liang

Introduction

Hung-huei Liang is a notable inventor based in Chang-hwa Hsien, Taiwan. He has made significant contributions to the field of magnetic recording media, holding two patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is the CoCrNiTa/Cr magnetic recording medium. This invention is designed for use in high-density computer hard disks. The medium consists of an aluminum or Ni/P substrate, a chromium underlayer, a four-component magnetic recording layer, and a carbon protective layer. The magnetic recording layer is composed of 66-78 atom percent cobalt, 12-16 atom percent chromium, 6-10 atom percent nickel, and 4-8 atom percent tantalum. This four-component system exhibits a high coercivity of greater than 2,800 Oe, leading to improved qualities such as increased recording density, reduced noise, enhanced off-track capability, and a lower on-track error rate. Additionally, it allows for the sputtering process to be conducted at a significantly lower temperature.

Another patent by Liang involves a method of sputtering an amorphous carbon overcoat as a protective film. This thin-film magnetic recording media features a carbon overcoat that is sputtered onto the magnetic recording layer. The sputtering process occurs in a chamber filled with inert gas and a mixture of nitrogen and hydrogen gases, with a mole ratio of nitrogen to hydrogen between about 0.5 and 1. The resulting hydrogen and nitrogen doped amorphous carbon overcoat demonstrates excellent mechanical properties and tribological performance.

Career Highlights

Hung-huei Liang is currently associated with Trace Storage Technology Corporation, where he continues to innovate in the field of magnetic recording technologies. His work has significantly impacted the efficiency and performance of data storage solutions.

Collaborations

Liang has collaborated with notable colleagues such as James Liang and Fu-Wen Cheng, contributing to advancements in their shared field of expertise.

Conclusion

Hung-huei Liang's contributions to magnetic recording media through his innovative patents highlight his role as a leading inventor in the technology sector. His work continues to influence the development of high-density data storage solutions.