“Apple previously decided to have TSMC produce fingerprint sensors for its next-generation iPhone at the foundry’s 12-inch facilities using a 65nm process, the sources noted. However, acknowledging risks associated with 12-inch WLP technologies, Apple has finally chosen TSMC’s 8-inch processing which enables mature yield rates for WLP to produce the fingerprint sensors, the sources said.” So what does this mean for the end user? Well as you might recall, iPhone 5s units were in short supply when they were first released and this was apparently due to the Touch ID’s production. So with the kinks ironed out and with a more refined processed being used, perhaps iPhone 6 supply will be better than that of the iPhone 5s.