Silicon Storage ( SSTI) promoted controller Arthur Whipple to chief financial officer, replacing Jack Lai, who will become vice president of administration and corporate development. The Sunnyvale, Calif., flash memory company said Whipple's appointment is effective Jan. 1, 2006. "We are pleased to promote Art to chief financial officer," said CEO Bing Yeh, chief executive officer. "Art has a strong financial background and extensive public company experience. Since joining the company as corporate controller in March, he has been an integral part of our finance team. We believe this will be a natural transition and look forward to utilizing his expertise in this new role." "As vice president of administration and corporate development, Jack will focus on global planning," said Yeh. "He will oversee the implementation of corporate policies worldwide to ensure consistency throughout our organization. Jack has made significant contributions to SST in the last two years and we believe that this new role will leverage his talents well and allow SST to maintain strict controls as we continue to expand our interests globally." SST closed Wednesday at $4.75.