Bulk Gallium Nitride, N-type. 
Diameter: 50.8mm +/- 1mm 
Orientation: c-axis +/- 1° 
Nominal thickness: 250 +/- 50µm 
Typical Resistivity:<0.05 Ohm-cm 
Dislocation Density: <1x10^7 cm-2 
Front surface finish: Epi-ready, RMS <1 nm 
Back surface finish: Optical finish 
Prime Grade