GT Advanced Technologies Inc fka GTAT

[Netsurfer]

I was with GT when they acquired Crystal Systems. There was a major effort to cost reduce the system but not to change anything significant.....management speak!!
Oxford was the supplier of record and it was a spinoff of another company...can not recall now. The compressor was fairly standard but the gas panel had some proprieatary stuff in it...according to Oxford.

Back in mid 2012 there was a huge effort to evaluate and qualify suppliers of alumina and crucibles.....was disproportional to any real need in a lot of peoples opinions. It was not supported by any sales forecast in any case. That may have been in anticipation of an Apple agreement and 2000 furnaces would explain the effort. That was more than a year before the announcement in Nov of 2013

In your reference to Foxconn the attached article shows a CHES or KY boule and both are different processes that the HEM ASF's. GT acquired the KY process from Thermal Technologies a couple of years ago but decided to not continue with that technology.
In these processes the crystal never touches the crucible...only molten sapphire does. This results in a different hot zone and most likely a Tungsten crucible.

There were a bunch on people from MMK that spent a lot of time in MESA. You may have known some of them.