Quartz Glass Disc/ Layer Carved Quartz Plate

BOROFLOAT33 is a high quality borosilicate glass with outstanding properties for a wide-range of applications.This unique special float glass is manufactured by GermanyTechnical Glass Solutions GmbH using the Microfloat process and the latest technology. This technology also results in a homogeneous material that has an excellent mirror-like surface, a high degree of flatness and an outstanding optical quality.

l Application:
Micro-optics
MEMS (pressure sensor, accelerometer...)
Wafer level packaging (image sensor package...)
Bioengineering (microfluidics, DNA analysis...)
PLC wafer cover
And many other customer-specific applications.Technical parameter:
a) Material: BOROFLOAT®33, PYREX7740, quartz glass, Corning Eagle-XG, B270, D263T, AF32,Soda lime
b) Standard thickness: 0.1mm ,0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 1.0mm, 1.5mm (thickness tolerance ± 0.02mm)
c) Standard size: 1150x850
d) Appearance: 60/40
e) Surface roughness (Ra) <1.5nm
f) Parallelism <0.01mm
g) Each edge is blunt C0.05~0.2mm
h) Crack <0.2mm, not crackable
Technical parameters:Density(25ºC)2.2g/cm2
Thermal expansion(ISO 7991)3.25´10-6k-1Light transmittance91%Softening point820ºCShort time use<10h550ºCLong timeuse>=10h450ºCRefractive index
(587.6nm)1.47140Knoop hardness480Coefficient of Linear Thermal Expansionα(20 - 300 °C)3.25 x 10-6K-1(ISO 7991)RemarksSpecific Thermal
CapacityCp (20 - 100°C)0.83 KJ x (kg x K)-1The maximum temperatures in use indicated apply only if the following RTG and RTS values are observed at the same time.
Specific Thermal
Conductivityλ(90°C)1.2 W x (m x K)-1For short-term usageδmax (< 10 h)550°CFor long-term usageδmax (≥ 10 h)450°CViscosity of Borosilicate Glasses:Working Point104dPas1270 °CSoftening Point107.6dPas820 °CAnnealing Point1013dPas560 °CStrain Point1014.5dPas518 °CTransformation Temperature (Tg)525 °C
Selected Standard Lasers and Related Wavelengths:Wavelength
(nm)Laser
MediumWavelength
(nm)Laser
MediumWavelength
(nm)Laser
Medium308XeCI488Ar1047Nd:YLF325HeCd514.5Ar1053Nd:YLF337N2532Nd:YAG1064Nd:YAG350xeF632.8HeNe1153HeNe351.1Ar694.3Ruby1319Nd:YAG363.8Ar730-780Alexandrite1730Er:YLF427N2850Er:YLF2060Ho:YLF441.6HeCd905GaAs10640CO2Wavelength λ(nm)435.8479.9546.1Index of Refraction n1.480151.476761.47311Wavelength λ(nm)589.3643.8656.3Index of Refraction n1.471331.469531.46916Abbe ConstantVe=(ne-1)/(nF'-nC')65.41Refractive Indexnd(λ587.6 nm)1.47140DispersionnF-nC71.4x10-4Stress-optical
Coefficentin in Mpa-1K4.0x10-6mm2N-1MPa-1