SAW Grade Quartz Single Crystal Wafer
OST Photonics offer a variety of sizes and thicknesses of SAW grade Quartz single crystal wafers, with wafer diameters ranging from 3 inch to 8 inch, the thickness can be customized according to your requirements (generally above 0.08 mm). The orientations can be X/Y/Z/AT32/AT33/AT36/BT/ST42.75 etc. In addition, high quality quartz blanks (including left handed quartz) are also available.
Specifications
Material | SAW Grade Quartz crystal | |||
Cutting Angle | X/Y/Z/AT32/AT33/AT36/BT/ST42.75°-cut etc | |||
Diameter/size | 3”(76.2mm) | 4” （100mm) | 6″(150mm) | 8″(200mm) |
Tol(±) | <0.20 mm | |||
Thinnest Thickness | 0.08mm Min | 0.10mm Min | 0.20mm Min | 0.35mm or more |
Primary Flat | 22mm | 32mm | 42.5mm | 57.5mm |
LTV (5mmx5mm) | <1µm | |||
TTV | <3µm | |||
Bow | -30<bow<30 | |||
Warp | <40µm | |||
PLTV(<0.5um) | ≥95%(5mm*5mm) | |||
Orientation Flat | All available | |||
Surface Type | Single Side Polished /Double Sides Polished | |||
Polished side Ra | <0.5nm | |||
Back Side Criteria | General is 0.2-0.5µm or as customized | |||
Edge Criteria | R=0.2mm or Bullnose | |||
Material Property | ECD | Better than grade 4 | ||
Inclusion | Better than grade II | |||
Q-Value | Better than grade C | |||
Wafer Surface Criteria | Particles ￠>0.3 µ m | <= 30 | ||
Scratch , Chipping | None | |||
Defect | No edge cracks, scratches, saw marks, stains | |||
Packaging | Qty/Wafer box | 25 pcs per box | ||