quartz wafer, quartz substrate, photomask

We provide a variety of polished glass wafers and glass substrates for use in the fast-growing semiconductor, MEMS, optical communication industries, and increasingly in solar cells. These wafers can be provided in round, square or other non-standard shape and thickness. Glass wafers manufactured by us display the utmost in precision quality thanks to our extensive experience in the art of double-sided grinding and polishing, cleaning, and packaging. We have materials in stock and can machine to your specification with high quality finish. General Specifications: Materials such as fused silica, quartz, borosilicate, BK-7, B270, soda lime, and more. Diameters: to 300mm; tolerance: to +/- 0.1mmThickness: to 0.20mm, size dependent; tolerance: to 5 microns Surface Flatness: to < 1/10 wave, thickness dependentSurface Quality: to 10-5Ra: <10 angstromsTTV: <10 micronsClear Aperture: 85% central Bevels: Ground edge with safety bevelWe provide standard size wafers as well as customized dimensions and specifications. Standard Wafer OfferingDiameterThickness2/50.8mm0.28mm2/50.8mm0.5mm2/50.8mm1.0mm3/76.2mm0.38mm3/76.2mm0.5mm3/76.2mm1.0mm4/100mm0.5mm4/100mm0.6mm4/100mm0.75mm4/100mm1.0mm4/100mm1.5mm4/100mm2.3mm5/125mm0.6mm5/125mm0.75mm5/125mm1.0mm5/125mm1.5mm6/150 mm0.75mm6/150mm1.0mm6/150mm1.5mm8/200mm0.9mm8/200mm1.0mm8/200mm1.5mm*Customized round or square shapes, sizes and thickness available on request.The following optional services are also available: · SEMI flats · Notches · Laser engraving · · Polished edge