GT Advanced Technologies Inc fka GTAT

[Netsurfer]

I think that semantics is getting in the way of what is important.
The part in the video looks to have been exfoliated from a sapphire "wafer" probably intended to be used as a substrate for an LED. The flat on the exfoliation is used to identify the crystal orientation. If the end item was going to be an iPhone screen.....rectangular in shape....I would call the starting item a "brick" if it was a circular single crystal silicon item for a PV cell it might be called a "puck". The critical item is that the starting item be "single crystal.

GT never exfoliated a part large enough to get an iPhone screen I do not believe. There may have been work going on to scale the technology but it had not reached proof of concept for that large an item.

GT bought Hyperion..ostensibly...to exfoliate single crystal Silicon for PV cells...and yes it achieved exfoliation by ion implantation to a very precise depth that sets the thickness of the exfoliation.

Ion implantation for strengthening glass (Sapphire) I believe was a side benefit of Hyperion. Ion implantation has been around in the semiconductor manufacturing world for a long time so that is not the issue.

Exfoliation requires the "GOD like control of ions" . Strengthening not so much.

Apple does not need Hyperion to implant ions into glass...sapphire or other...to strengthen it. It probably can be done with ion implanters used in the semi industry. Hyperion would have been a "twofer"