Wafer carrier

Meller Optics now offers a variety of custom multiple hole sapphire wafer carriers for processing of GaAs, Indium Phosphide, Silicon and other semiconductors. Sapphire is the material of choice due to its durability, transparency, hardness and chemical and scratch resistance. •Diameters from 2″ to 6″ •Flatness and Parallelism to 0.0025mm •Optical grade High Purity Synthetic Sapphire •Custom made perforation hole sizes and patterns •Flats and Laser marking available Sapphire is second only to diamond in hardness and will provide a stronger and more durable carrier than Fused Quartz. Specifications: Sapphire Wafer Carrier 4.00″ Dia Diameter:4.00″ +/- .002″ Thickness:.040″ +/- .002″, .125″ +/- .002″ Parallelism:0.0025mm Flatness:Controlled by Parallelism Surface Finish:Polished 80-50, 2 faces Material Quality:Optical Grade Crystallographic Orientation:Random or C-Plane