Optical Grade Quartz Wafers
Optical Grade Quartz Wafers
Our abundance experience at growing and mass production for optical grade quartz . We are equipped with advanced facilities at Crystal growing, wafer lapping, polishing and checking.
Manufacturer ofFused Silica & Quartz & Glass Wafers, Piezo Single Crystal Wafers, Series Glass & Fused Silica Wafers, Single Crystal wafers.
Our R&D is active at developing and researching from big material to process 6” optical grade quartz wafer.
Product Parameters
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Material |
QuartzCrystal |
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|
Cutting Angle |
X/Y/Z-cut etc |
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|
Diameter/size |
1”(25.4mm)-4”(100mm) |
|
|
Tol(±) |
<0.20 mm |
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Thickness |
||
|
LTV (5mmx5mm) |
<1µm |
|
|
TTV |
<3µm |
|
|
Bow |
-30<bow<30 |
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Warp |
<40µm |
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Surface Type |
Single Side Polished /Double Sides Polished |
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|
Polished side Ra |
<0.5nm |
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Back Side Criteria |
General is 0.2-0.5µm or as customized |
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Scratch/Dig |
Bette than 40/20 |
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Edge Criteria |
R=0.2mm or Bullnose |
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Material Property |
ECD |
Better than grade 4 |
|
Inclusion |
Better than grade I |
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Q-Value |
Better than grade C |
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|
Wafer Surface Criteria |
Particles ￠>0.3 µm |
<= 30 |
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Scratch , Chipping |
None |
|
|
Defect |
No edge cracks, scratches, saw marks, stains |
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Packaging |
Qty/Wafer box |
25pcs per box |
CQTdedicatedtoproduceseries glass wafers, fused silica wafers, SAW grade lithium tantalate wafers, optical grade lithium tantalate wafers, SAW grade lithium niobate wafers, optical grade lithium niobate wafers. CQT is a leading Chinese manufacturer who involves in piezoelectric crystals, surfaceacoustic wave filtersand the single crystal growth.
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