Location History:
- Milpitas, CA (US) (2001 - 2003)
- Santa Clara, CA (US) (2000 - 2005)
- San Jose, CA (US) (2001 - 2006)
Company Filing History:
8 out of 3,785 
2 out of 2,636 
Years Active: 2000-2006
Title: Innovations of Yuexing Zhao in Magnetic Head Technology
Introduction
Yuexing Zhao is a prominent inventor based in San Jose, CA, known for his significant contributions to magnetic head technology. With a total of 10 patents, Zhao has made remarkable advancements in the field, particularly in the design and fabrication of magnetic heads for hard disk drives.
Latest Patents
Zhao's latest patents include innovative designs for planar magnetic heads. One notable patent describes a magnetic head that features a second magnetic pole (P2 pole) fabricated upon a write gap layer deposited on a flat surface. This design incorporates a P1 pole pedestal formed on the P1 pole layer, allowing for the induction coil structure to be fabricated beneath the write gap layer. An etch stop layer is utilized, along with an ion etching process, to create induction coil trenches in an etchable material. Following this, a chemical mechanical polishing (CMP) process is conducted to achieve a polished flat surface for the write gap layer, upon which the P2 pole is fabricated. This innovative approach enables the magnetic head to have a narrower P2 pole tip base width, resulting in narrower data tracks and increased areal data storage density in hard disk drives.
Career Highlights
Throughout his career, Yuexing Zhao has worked with notable companies such as Lam Research Corporation and Hitachi Global Storage Technologies. His experience in these organizations has contributed to his expertise in magnetic head technology and innovation.
Collaborations
Zhao has collaborated with esteemed colleagues, including Diane J Hymes and Liming Zhang, further enhancing his work in the field of magnetic technology.
Conclusion
Yuexing Zhao's contributions to magnetic head technology have significantly impacted the efficiency and performance of hard disk drives. His innovative designs and patents continue to shape the future of data storage solutions.