Series Glass & Fused Silica Wafers
CQT uses a variety of glass and quartz depending on the application and material requirements. Our designers and engineers are skilled at working with any number of glass and quartz materials to machine and fabricate precision optical products such as fused quartz parts for optics, fused silica parts used in fiber optic applications, and borosilicate glass parts found in semi-conductor manufacturing.
Product Parameters
The general specs are as follows sheet, if your specified is not included with it, you may freely tell us and we’ll pleased to customize them for you.
Find here details of CQT selling lithium niobate wafer, lithium tantanlate wafer, piezo single crystal blanks and glass substrates for biochemistry.
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spec
|
unit
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6"
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8"
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10"
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12”
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Diameter/size(or square)
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mm
|
150
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200
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250
|
300
|
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Tolerance (±)
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mm
|
|
|
|
|
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Thickness
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mm
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or more
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or more
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or more
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or more
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Primary reference flat
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mm
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Semi-notch
|
Semi-notch
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Semi-notch
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LTV (5mmx5mm)
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µm
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<
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<
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<
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<
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TTV
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µm
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< 3
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<3
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<5
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<5
|
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Bow
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µm
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±30
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±40
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±40
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±40
|
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Warp
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µm
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≤ 40
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≤ 50
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≤ 50
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≤ 50
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PLTV(5mm*5mm)<
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%
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≥95%
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≥95%
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≥95%
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≥95%
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Edge Rounding
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mm
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Surface Type
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|
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Polished side Ra
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nm
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Back Side Criteria
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µm
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CQT dedicated to produce series 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, surface acoustic wave filters and the single crystal growth.
Process capability:
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Item
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Capability
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Diameter
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5mm - 400mm
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Thickness
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50μm or more
|
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Dimensional Tolerance
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+/- 25μm
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Thickness Tolerance
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+/- 5μm
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Thickness Variation(TTV)
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< 2μm
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Flatness
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1/10 Wave/Inch
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Surface Roughness (RMS)
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<5วบ
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Scratch and Dig
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10/5
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Particle Size
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<10μm
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Bow/Warp
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<10μm
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