Sapphire Wafer

Sapphire Wafer

Product Description

Crystal
Sapphire Crystal LED class
LED Grade Sapphire
Purity sapphire
Sapphire purity> 99.99%
Color
Color Transparent
Transparent
Crystal orientation
Orientation C surface partial M surface 0.2 ° ± 0.05 °
C-plane (0001) off to M-plane (1-100) 0.2 ° ± 0.05 °
Diameter
Diameter 50.85 ± 0.05mm
Thickness
Thickness
0.43 ± 0.015 mm

Initial plane
Primary Flat A axis ± 0.1 °
A-axis ± 0.1 °
Plane Length
Flat Length 16.0 ± 0.5mm
Front surface roughness
Front Side Surface Roughness EPI polished, Ra ≤ 0.2nm
EPI polished, Ra ≤ 0.2nm
Flatness
TTV
≤ 7.0μ M (95% ≤ 5.0μ M; 100% ≤ 7.0μ M)
Warp
WARP
≤ 10.0μ M
Curvature
BOW
-5 ~ +4 mm (90% ≤ 0)
Micro-porosity and color
Bubble & Color is not visible light lamp
None by visual inspection in intensive light
Grain boundary
Ground Boundary is not visible under fluorescent
None by visual inspection in fluorescent light
Cleanliness
Cleanliness invisible stains
Free visible contamination
Packaging
Packaging one hundred clean room, nitrogen, vacuum packaging
Vacuum packed, in a class 100 clean room, under a
Nitrogen atmosphere

Send your message to this supplier

Ms. Rose

Post a Sourcing Request Now