!%ON Semiconductor Corp.%! of Phoenix and Donald Colvin, its executive vice president and chief financial officer, have mutually agreed to Colvin’s resignation as an officer of the company. It was expected at the time of the announcement in August that he would continue at the firm for up to 90 days while the board sought a replacement. ON Semiconductor supplies silicon solutions for energy-efficient electronics. Its power and signal management, logic, discrete and custom devices help customers solve their design challenges in automotive, computing, LED lighting, medical, military, aerospace, consumer and power applications.