In what has become something of a tradition ahead of Apple's product launches, Digitimes is reporting that the iPhone 5S may see constrained supplies at launch due to poor yields of certain components. In this case, the issues are said to be related to chips supporting fingerprint recognition and the device's LCD, according to industry sources.The fingerprint recognition chip is designed by AuthenTec, of which Apple acquired for US$356 million in July 2012. Issues related to the original design of the chip reportedly caused the lower yield rates, claimed the sources, adding that Apple outsources the production of the fingerprint recognition chips to Taiwan Semiconductor Manufacturing Company (TSMC) and the packaging of the chips to Xintec.The report also claims that production for the new device was supposed to start in late June or early July, but because of yield problems the ramp-up will be delayed until l
