Semiconductor Equipment and Materials International (SEMI) announced the election of Kenichi Sekiya, president and CEO of Disco Corp., as chairman of the association's Board of Directors. Sekiya succeeds Sung-Ki Suh, president of A Tech Ltd, who served as chairman for the past year. It was also announced that Doug J. Dunn, president and CEO of ASM Lithography Holding N.V., was newly elected to the association's board of directors. Telephotonics Inc., an emerging player in highly integrated optical components for the optical networking industry, announced the appointment of Michael Rodensky as vice president of sales. In his new position Rodensky will be responsible for Telephotonics' worldwide sales efforts including the management and development of the company's sales organization, and establishing regional sales offices.