:British semiconductor wafer maker IQE said on Tuesday it expects annual profit to be at the lower end of analysts' estimates as some of its markets were slower to recover from a supply glut, sending its shares 13 per cent lower. IQE, whose 'epi-wafers' are used in the iPhone's facial recognition sensors, expects full-year adjusted core profit to be at the lower end of analysts' estimates of 11.1 million pounds to 16.6 million pounds ($14.5 million to $21.7 million). "We expect to continue to