Jiaozuo City Crystal Photoelectric Material Co., Ltd
optics wafer, sapphire wafer, epi polished wafer, semiconductor wafer, epi ready wafer, Manufacturer and Supplier - China(CN)
patterned sapphire substrate 2 inch (2 inch)
Sapphire crystal is widely used in semiconductor (MOCVD epitaxial GaN substrate), watches, medical science, communications, lasers, infrared, electronics, measuring instruments, military, aerospace and others high-tech industry.
Crystal materials: 99,996% of Al2O3, High Purity, Monocrystalline
Crystal quality: Block marks, twins, Color, micro-bubbles and dispersal centers are non-existent
Diameter: 2inch-7inch
Thickness: 250¡Ó15 £gm, 330¡Ó15 £gm, 430¡Ó15 £gm, 500¡Ó15 £gm, 550¡Ó15 £gm, 600¡Ó15 £gm
Orientation: C-plane(0001), M-plane, A-plane, R-plane
Primary flat length: 16.0¡Ó0.8 mm, 22.0¡Ó1.0mm, 32.5¡Ó1.5mm
TTV?10 £gm , ?15£gm, ?20£gm , ?30£gm
BOW?10 £gm , ?15£gm, ?20£gm , ?30£gm
Warp?10 £gm , ?15£gm, ?20£gm , ?30£gm
Front Surface: Epi-polished, Ra< 0.2nm (By AFM)
Back Surface: Fine ground (Ra=0.5 to 1.2 £gm) or Epi-polished (Ra< 0.2 nm)
Cleaning/packaging: Class 100 clean room cleaning, vacuum packaging derived nitrogen; 25 pieces in one cassette or single packaging.