Apple, The Hyperion Ion Cannon And Why Future iPhones Could Have Sapphire Screen(techcrunch.com)
techcrunch.com
Apple, The Hyperion Ion Cannon And Why Future iPhones Could Have Sapphire Screen
http://techcrunch.com/2013/11/11/apple-fires-its-ion-cannons/
"The manufacturing process for most solar panels involves manufacturing a block of sapphire or other crystalline silicon and then slicing a .2mm-thick sheet off of it with a wafering saw."
Painful