Si-Tuan Lam

Title: Si-Tuan Lam: Innovator in Magnetic Disk Systems

Introduction

Si-Tuan Lam is a notable inventor based in San Jose, CA, who has made significant contributions to the field of magnetic disk systems. With a focus on enhancing the manufacturing processes involved in these technologies, he has been awarded 2 patents for his innovative approaches.

Latest Patents

One of Si-Tuan Lam's latest patents involves an etching process designed to selectively remove the copper plating seed layer. In magnetic disk systems, write head coils are typically formed through electroplating onto a seed layer while using a photoresist mask. It is crucial to eliminate the seed layer from all areas except beneath the coil itself. This invention utilizes etching in a solution of ammonium persulfate, enhanced with the complexing agent 1,4,8,11 tetraazundecane. This method effectively suppresses the reduction of copper, thereby increasing the dissolution rate of copper while decreasing that of nickel-iron. Two implementation methods are described: one involves adding the complexing agent directly to the ammonium persulfate, while the other introduces the 1,4,8,11 tetraazundecane through a dipping process prior to conventional etching.

Career Highlights

Si-Tuan Lam is currently employed at Headway Technologies, Incorporated, where he continues to develop innovative solutions in the field of magnetic disk technology. His work has been instrumental in advancing the efficiency and effectiveness of manufacturing processes.

Collaborations

Throughout his career, Si-Tuan Lam has collaborated with talented individuals such as Wensen Li and Henry C Chang. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Si-Tuan Lam's contributions to the field of magnetic disk systems through his innovative patents and collaborative efforts highlight his role as a key inventor in this technology sector. His work continues to influence advancements in manufacturing processes.