I noticed another news release in CS Compund Semiconductor pertaining to the need to find alternatives,
IQE has delivered the first 200mm (8”) GaN on silicon wafers into the Singapore-MIT Low Energy Electronic Systems (SMART-LEES) program.
http://www.compoundsemiconductor.net/csc/detail-news/id/19737457/name/IQE-delivers-200mm-GaN-on-Silicon-wafers-to-Singapore-MI.html
Can someone from this forum explain the merits of "this approach"?