*Low electrical loss (glass is an insulator) *Better warp management (thermal expansion/stability and increased stiffness helps to minimize warping) *More cost effective *Potential to optimize processes (glass wafers can be as thin as 100µm) smartech.gatech.edu/bitstream/handle/1853/42737/bandyopadhyay_tapobrata_201112_phd.pdf?sequence=1&isAllowed=y