Haijun Gao

Title: Haijun Gao: Innovator in Ultrasonic Reclaim Methods

Introduction

Haijun Gao is a notable inventor based in Chang An Town, China. He has made significant contributions to the field of disk drive technology, particularly through his innovative patent related to ultrasonic reclaim methods.

Latest Patents

Haijun Gao holds a patent for an "Ultrasonic reclaim method for disk drive suspensions." This method involves reclaiming a suspension from a disk drive head gimbal assembly (HGA). An ultrasonic probe is applied to the HGA's read/write head slider on the side opposite that of its solder balls. Ultrasonic oscillations are transmitted through the ceramic slider to the side with the solder balls. The oscillations break the brittle intermetallic compound of the slider balls and free the slider. The ultrasonic energy also weakens the epoxy adhesive between the slider and suspension. This method can be used with heat to further weaken the solder balls and adhesive.

Career Highlights

Haijun Gao is associated with Magnecomp Corporation, where he has been instrumental in advancing disk drive technologies. His work has led to improved methods for reclaiming components, enhancing the efficiency and reliability of disk drives.

Collaborations

He has collaborated with notable coworkers, including Haiming Zhou and Fei He, contributing to various projects within the company.

Conclusion

Haijun Gao's innovative work in ultrasonic reclaim methods showcases his expertise and dedication to advancing technology in the disk drive industry. His contributions are significant and continue to impact the field positively.