JOINT FILING AGREEMENTJoint Filing Agreement • July 12th, 2013 • Potomac Capital Partners Ii Lp • Special industry machinery, nec
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D originally filed on January 17, 2012 (including amendments thereto) with respect to the shares of Common Stock, par value $0.001 per share, of Mattson Technology, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
