HomeQuartz WaferQuartz WaferQuartz WaferDiameter 4" 5" 6"Thickness (μm) 500 625 675Material Crystal QuartzGrade/Brand Optical, SAW Surface Finished DSP/SSPTTV (μm) <10 <10 <15Bow/Warp (μm) <40 <40 <60Top Side Ra (μm) <1