Hangzhou Freqcontrol Electronic Technology Ltd.
Hangzhou Freqcontrol Electronic Technology Ltd. We Grow Crystal. We Fabricate Wafer. We are Piezoelectric Specialist.
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Single Crystal Quartz Cut Into Wafer With Different Orientation
Piezo quartz is the highly symmetric shape of the single crystal, is characterized by the arrangement of atoms and molecules have rules well developed quartz crystal, appearance is the most significant features rule configuration, the crystal quartz crystal crystal face a total of 30, 6 m (cylindrical), six R surface (large surface edges) six R surface (surface) edges six s surface (three-way partial cone), Six X planes (tripartite partial planes), the clip Angle of adjacent M plane is 60°, the Angle between adjacent M plane and R plane and adjacent M plane and R plane is 38°13 ', and the Angle between adjacent S plane and X plane is 25°57 '.
Material | Synthetic Piezoelectric Quartz Crystal | |||
Cutting Angle | X / Y / Z / AT32°/33°/35°/36°/ BT / ST42.75° etc. or per Customized | |||
Diameter/size | 3" (76.2mm) | 4" (100mm) | 6" (150mm) | 8" (200mm) |
Tol(±) | <0.20 mm | |||
Thinnest Thickness | 0.08mm Min-up | 0.10mm Min-up | 0.20mm Min -up | 0.35mm Min- |
Primary Flat | 22mm | 32mm | 42.5mm | 57.5mm or notch |
LTV (5mmx5mm) | <1.5µm | |||
TTV | <1.5~10 µm | |||
Bow | ±10~±50um | |||
Warp | <10~40µm | |||
PLTV(<0.5um) | ≥95%(5mm*5mm) | |||
Orientation Flat | All available | |||
Surface Type | Single Side Polish / Double Side Polish / Lapped | |||
Polished side Ra | <0.5nm or specific per requested | |||
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 | 25pcs per box, Semi Standard | ||
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