Before he became Solyndra's chief financial officer, Wilbur G. Stover was at the center of one of the largest price-fixing scandals in U.S. history. From 1994 to 2007, Stover was CFO of Micron Technologies Inc., a maker of computer memory chips. During that time, the Justice Department investigated Micron and four other companies for colluding to drive up the price of memory in violation of federal antitrust laws. "This was a big deal case," said Robert Lande, a law professor at Baltimore University who has written extensively on the case. "It was price-fixing on a crucial component that everybody uses,...