Jiaozuo City Crystal Photoelectric Material Co., Ltd.

Jiaozuo City Crystal Photoelectric Material Co., Ltd. is based in China and offers sapphire substrates and 2 inch patterned sapphire substrates. Diameters are offered as 2", 3", 4", 5" ~ 7". Thickness options are 250 ±15µm; 330 ±15µm; 430 ±15µm; 500 ±15µm; 550 ±15µm; 650 ±15µm. Orientations include C-plane, A-plane, R-plane, M-plane, and any angle relative to C-plane. Primary flat lengths are 16.0 ±0.8mm; 22.0 ±1.0mm; 32.5 ±1.5mm. Flatness values are given as discrete options: TTV 10µm, 15µm, 20µm, 30µm; LTV 5µm, 10µm, 15µm, 20µm; TIR 10µm, 15µm, 20µm, 30µm; BOW 10µm, 15µm, 20µm, 30µm; Warp 10µm, 15µm, 20µm, 30µm. Front surface Ra < 0.2nm by AFM; back surface fine ground (Ra=0.8 to 1.0 µm) or polished (Ra < 0.2nm). Cleaning is Class 100 clean room cleaning with vacuum packaging. Diameter is 50.8 ±0.1mm; thickness 430 ±25µm; orientation C-plane; primary flat length 16.0 ±1.0mm. Pattern specifications: diameter 2.4 ±0.2µm; spacing 0.6 ±0.2µm; depth 1.5 ±0.2µm. Flatness values: TTV 10µm; BOW 10µm; Warp 10µm. Front surface Ra < 0.2nm by AFM; back surface fine ground (Ra=0.5 to 1.2 µm). Cleaning is Class 100 clean room cleaning with vacuum packaging; 25 pieces in one cassette or single packaging.