CEO of Apple have confirmed that the new factory in Arizona is used to produce Sapphire for apple devices. Next generation of apple devices will have Sapphire glass in it.
Apple already uses sapphire glass in the camera lens cover and Touch ID button on iPhones, but producing large quantities of clear sapphire for the screen will require new techniques, as detailed in a patent application.
Apple has been rumored to be experimenting with sapphire glass displays, but has so far found them unfeasible. It’s clear why they’d want to make it work, though. Sapphire is the second strongest naturally occurring material after diamond and it’s much cheaper and easier to make.
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