** FILE ** Then CEO of Siemens electronics, Heinrich von Pierer, announces balances during his last press conference in Munich, in a Nov. 11, 2004 file photo. Siemens said Thursday April 19, 2007 von Pierer was stepping down and would give up his post as chairman of the supervisory board at the next board meeting on April 25. His term would otherwise have run until next year, von Pierer said in a company statement. (AP Photo/Diether Endlicher)