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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

Material

QuartzCrystal

Cutting Angle

X/Y/Z-cut etc

Diameter/size

1”(25.4mm)-4”(100mm)

Tol(±)

<0.20 mm

Thickness

LTV (5mmx5mm)

<1µm

TTV

<3µm

Bow

-30<bow<30

Warp

<40µm

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

Scratch/Dig

Bette than 40/20

Edge Criteria

R=0.2mm or Bullnose

Material Property

ECD

Better than grade 4

Inclusion

Better than grade I

Q-Value

Better than grade C

Wafer Surface Criteria

Particles ¢>0.3 µm

<= 30

Scratch , Chipping

None

Defect

No edge cracks, scratches, saw marks, stains

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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