Wenxin Chang

Title: Innovations of Wenxin Chang in Head Stack Assembly Testing

Introduction

Wenxin Chang is an accomplished inventor based in Dongguan, China. He has made significant contributions to the field of head stack assembly testing, holding a total of 2 patents. His innovative approaches have streamlined processes and improved efficiency in the industry.

Latest Patents

Wenxin Chang's latest patents include a "Process for Testing a Head Stack Assembly" and a "Universal Fixture for HSA Assembly and Its Testing Process." The first patent introduces a new fixture capable of holding a head stack assembly throughout all processes, allowing for a Quasi-Static Test to be conducted before swaging. This method involves loading head gimbal assemblies and actuators using an automatic loading machine, in-line dressing, ultrasonic bonding, and testing of the assemblies. If any assembly fails the testing, it can be rejected and reworked in-line, followed by coating, ultra-violet curing, and visual checking before unloading.

The second patent focuses on a universal fixture designed for HSA assembly, which simplifies handling operations and makes rework much easier. This invention also provides a process for testing the HSA using the fixture, enhancing the overall efficiency of the assembly process.

Career Highlights

Wenxin Chang is currently employed at Sae Magnetics (H.K.) Limited, where he continues to innovate and develop new technologies in the field. His work has been instrumental in advancing the capabilities of head stack assembly testing.

Collaborations

Wenxin has collaborated with notable coworkers, including Takehiro Kamigama and Huegung Wang, who contribute to the innovative environment at Sae Magnetics.

Conclusion

Wenxin Chang's contributions to head stack assembly testing through his patents demonstrate his commitment to innovation and efficiency in the industry. His work continues to influence advancements in technology and manufacturing processes.