Apple's new manufacturing deal with GT Advanced Technologies will boost production capacity allowing the company to produce enough sapphire material to make 5-inch sapphire screen covers for 33.79-50.56 million iPhones per year. US$578 million can be used to procure 1,930-2,890 sapphire growing furnaces for a monthly production of 5.28-7.90 million mm of 2-inch-equivalent … [Read more...] about Apple Deal With GTAT Could Produce Sapphire Crystal for 50 Million 5-Inch iPhone Displays Annually