Stan Yarbro, Ph.D.
Chairman of Audit Committee, member of Compensation Committee and member of Nominating and Corporate Governance Committee

Stan Yarbro has extensive experience in market development of high technology solutions to a worldwide customer base. He recently retired as Executive Vice President, Worldwide Field Operations, for Varian Semiconductor Equipment Associates, a position he had held since 2004. Prior to Varian, Dr. Yarbro served in various executive capacities at KLA-Tencor Corporation, in the semi-conductor industry. He currently serves on the boards of FSI International and Carbon Design Innovations and has previously served on the boards of Electrogas, Inc. and Molecular Imaging where he worked closely with the organizations to develop and improve sales and marketing strategies.

Dr. Yarbro holds a Ph.D. in Analytical Chemistry from Georgia Institute of Technology and a Chemistry from Wake Forest University.

Stockholders may send communications in writing to the Board, committees of the Board, and/or to individual directors, at our corporate address in care of our secretary. Written communications addressed to the Board are reviewed by the Chairman of the Board for appropriate handling. Written communications addressed to an individual Board member are forwarded to that person directly.