Sapphire wafers and sapphire substrates
Polished Sapphire Wafers and Substrates
Sapphire wafers and substrates are available in all orientations with the more common ones being R-plane (1-102), A-plane (11-20) also referred to as 90-degree Sapphire and C-plane (0001) referred to as 0-degree or basal plane Sapphire. Valley also stocks Silicon on Sapphire (SOS) wafers.
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:
Informative Sapphire Web sites:
Valley Design East
Phoenix Park Business Center
2 Shaker Road, Bldg. E-001
Shirley, MA 01464
Valley Design West
Santa Cruz, CA 95060