Supplier woes stir Apple demand fears, Asian parts makers dive

By Poornima Gupta and Noel Randewich SAN FRANCISCO (Reuters) – Apple Inc's shares fell below $400 on Wednesday for the first time since December 2011 after a U.S. chip supplier's disappointing revenue forecast fanned fears about weakening demand for the iPhone and iPad as competition intensifies. The surprise warning by Cirrus Logic Inc knocked down shares of key component suppliers like South Korea's LG Display Co Ltd and Japan's Toshiba Corp on Thursday in Asia, a region that supplies the lion's share of chips, cases and displays for the Cupertino, California-based company. …