Email: john@talkelab.ucsd.edu Phone: 858-534-2882 Fax: 858-534-2720 Address: University of California, San Diego Mail Code #0401 9500 Gilman Dr. La Jolla, CA, 92093-0401

Biography of Jianfeng (John) Xu

John joined Professor Talke's group in August of 2003 as a graduate student. His research is in the area of head disk interface for femto sliders in small form factor disk. He is interested in researching the application of small form factor hard drives in consumer devices such as personal digital assistants (PDA), hand held cell phones, etc.

John has been a summer intern during the summer of 2005 at Seagate Research in Pittsburgh working with Yiao-Tee Hsia and James Kiely. Before coming to UCSD, John worked as a research engineer in the head disk interface group of the Data Storage Institute, Singapore. He participated in slider air bearing design, fabrication and characterization. He received his M. Sc. degree in high performance computing for engineered systems from the Singapore-MIT Alliance in 2002. He obtained his B.Sc. degree in mechanical engineering from Huazhong University of Science and Technology in 2001. John was born on December 6, 1979 in Hunan, China.

Outside of work and study, John is very fond of travelling and hopes to take a tour around the world someday. John also likes to play chess, go, tennis, badminton and table tennis.

Papers:

Numerical Investigation of Fracture of Small Form Factor Glass Disks, J. Xu, Y. Okazaki and F. E. Talke, to be submitted

"Scaling and Shock Response of Small Form Factor Disk Drives", J. Xu and F. E. Talke, Proceeding of the International Tribology Conference, Kobe, May 2005

"Flying Height Modulation and Femto Slider Design", J. Xu and B. Liu, IEEE Trans. on Magn. 39 (5): 2438-2440, Sept. 2003

"Femto Slider: Fabrication and Evaluation", B. Liu, M. Zhang, S. Yu, G. Leonard, Y.S. Hor; J. Xu, IEEE Trans. on Magn. 39 (2): 909-914, March 2003

"Development of 1x4 MEMS-based Optical Switch", Z. Wang, W. Cao, X. Shan, J. Xu, S. Lim, W. Noell, N. de Rooij, Sensor and Actuators A-Physical 114 (1): 80-87 Aug. 2004

Presentations and posters:

"Scaling and Shock Response of Small Form Factor Disk Drives", J. Xu and F. E. Talke, World Tribology Congress III, Washington D.C., Sept. 2005 (Poster)

In-plane and Out-plane Vibration of the Head Gimbal Assembly and Onset of Plastic Disk Deformation in Small Form Factor Drives, ISPS Conference, Santa Clara, June 2005 (Presentation)

"Scaling and Shock Response of Small Form Factor Disk Drives", J. Xu and F. E. Talke, ITC Conference, Kobe, May 2005 (Presentation)

"Numerical investigation of fracture of small form factor glass disks", J. Xu, Y. Okazaki and F. E. Talke, INTERMAG Conference, Japan, May 2005 (Poster)

• Research: Slider Dynamics for Magnetic Recording Sliders with Five Degrees of Freedom