Synthetic Quartz Ingot

I. Application

Quartz materials for semiconductor and optical industries ( LCD optical mask substrate, lens and mirror, aerospace window, large aperture reflection grating).

II. Product Features

The synthetic quartz ingot is made with synthetic material by hydrogen and oxygen flame melting method.
Product feature is extremely high purity (total impurity content high UV transmittance (internal transmittance of 185nm reaches bubble level and low stress.

III. Product Type

IV. Typical Size

TypeShapeSize
PQ870Ingot/plate/ring300~450mm

V. Physical and Chemical Properties

i. Mechanical and Thermal Properties

ValueRemark
Density g/cm32.2 
Refractive Index1.46At 500nm
Softening Point ℃1600η=107.6
Annealing Point ℃1080η=1013
Strain Point ℃980η=1014.5

ii. Impurity Value

NaKMgLiCaFeAlCu
MaxValue 0.05 0.02 0.01 0.01 0.03 0.02 0.1 0.01

iii. Optical Properties

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