Polished Sapphire Wafers and Substrates

Transmission Curve and Technical Data Sheet

Because it is an anisotropic hexagonal/rhomohedral crystal, some properties depend on the crystallographic direction and these directions are specified relative to the optical C-axis.

Sapphire wafer and substrate applications include:

• Microelectronic IC applications
• SOS Silicon-on-Sapphire
• Growth of superconducting compounds / Gallium Nitride
• Infrared detectors
• Hybrid microelectronics
• Polishing carriers
• Hostile environment
• Optical transmission from ultraviolet to near infrared
• High temperature
• Radiation resistance

Informative Sapphire Web sites:

• Dicing of Sapphire wafers and substrates
• Synthetic Sapphire
• Sapphire Wafer Dicing
• Disco dicing saws and dicing blades
• Sapphire ultra-thin wafers, substrates and windows
• Sapphire index of refraction