Is a measurement of the small-scale variations in the height of a physical surface. A common measure of surface roughness is the rms (root-mean-square) height of the surface bumps. Part of our refined processes in providing the most excellent glass wafers is our advanced glass roughness measuring equipment. With this, we can make sure the glass wafer roughness you require is up to spec. Coresix Precision Glass can answer all your questions about glass specs and provide prices for you. Please give us a call today!