Location History:
- San Jose, CA (US) (2006 - 2008)
- Santa Clara, CA (US) (2009)
Company Filing History:
Years Active: 2006-2009
Title: Innovations of Xiaohong Yang
Introduction
Xiaohong Yang is a notable inventor based in San Jose, CA. He has made significant contributions to the field of technology, particularly in the area of magnetic recording. With a total of 3 patents to his name, Yang continues to push the boundaries of innovation.
Latest Patents
One of his latest patents is a method to print photoresist lines with negative sidewalls. This invention describes a write pole for vertical magnetic recording, which includes a trapezoidal prism made of high magnetic moment material. The design features inwardly sloping sidewalls, with parallel surfaces that are between about 0.1 and 0.3 microns apart. The sidewalls slope at angles ranging from 15.5 to 60 degrees relative to vertical. Another significant patent by Yang addresses the challenges of producing a negative wall angle from either negative or positive-tone chemically amplified resists, particularly through e-beam lithography. This innovative method involves first forming a photoresist pedestal in the conventional way, followed by flood exposing with electrons. A second development treatment is then applied, resulting in the removal of additional material from the sidewalls, which creates negatively sloping sidewalls. This method is also applicable to the process of forming a pole tip for a vertical magnetic writer.
Career Highlights
Xiaohong Yang is currently employed at Headway Technologies, Incorporated, where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of magnetic recording devices.
Collaborations
Yang has collaborated with several talented individuals in his field, including Chao-Peng Chen and Jei-Wei Chang. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Xiaohong Yang's contributions to technology and innovation are noteworthy, particularly in the realm of magnetic recording. His patents reflect a deep understanding of complex engineering challenges and a commitment to advancing the field.