Sapphire wafer

High quality wafer made of optical grade sapphire

Material : 99.999% pure AL203 monocrystalline sapphire crystal.

Process : cutting and one face polishing or double face polishing

Dimensions:  up to 8″ ( 25.4mm to 203.2 mm)

Thickness : 150µm to 1mm

Shape : round or square

Types : C-axis orientation

Surface quality : Ra lower than 3 Å

TTV : lower than 10 µm or lower than 20 µm

Bow : better than 20 µm

Usage : semiconductor industry and industry