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EAGLE XG® is an alkali-free alkaline earth boro-aluminosilicate glass made by CORNING®. It is a perfect material for the fabrication of wafer-level optics. The high-quality glass is produced by a unique fusion draw process, resulting in excellent flatness, smoothness, surface quality, and low nominal thickness tolerance. Due to its high material quality, EAGLE XG® is also ideal for the manufacturing of glass wafers and as a substrate for optical coatings.
EAGLE XG® glass offers exceptional dimensional stability, high chemical durability, and outstanding clarity. It provides all the features required for modern LCDs and other advanced display technology. The thermal coefficient of expansion (CTE) of EAGLE XG® glass closely aligns with silicon, enabling a wide range of sophisticated semiconductor applications. Moreover, glass has been optimized for an increased strain point, allowing improved fabrication processes at higher temperatures.
EAGLE XG® is also an exciting material for scientific applications. The very low micro-roughness of the glass surfaces allows for special research projects that are impossible with most other glass materials.
EAGLE XG® is considered environmentally friendly because the glass does not contain heavy metals such as arsenic, barium or antimony.
To request a quote for custom-sized EAGLE XG® substrates or windows, please click the button below or select a thickness from the table.
*The total alkali content is approximately 0,1 weight-%.
(Typical < 0,05 weight-%)
0,30 mm glass thickness:
0,70 mm glass thickness:
1,10 mm glass thickness:
Thickness (mm) |
Tolerance |
![]() |
---|---|---|
0,30 | ±0,02 | ✔ |
0,70 | ±0,02 | ✔ |
1,10 | ±0,02 | ✔ |
The thicknesses marked with "✔" are also available within our 48-hour express service. | ||
More glass thicknesses (0,2 mm, 0,21 mm, 0,25 mm, 0,4 mm, and 0,5 mm) are available on request if sufficient quantities are purchased. Please send us your inquiry in case of need. |
Refractive index numbers |
||
---|---|---|
Designation |
Wavelength (nm) |
Refractive Index |
nF' |
480 |
1,5159 |
nF |
486,1 |
1,5154 |
ne |
546,1 |
1,5119 |
nd |
587,6 |
1,5099 |
nD |
589,3 |
1,5097 |
632,8 |
1,5082 |
|
nC' |
643,8 |
1,5077 |
nC |
656,3 |
1,5073 |
850 |
1,5028 |
|
940 |
1,5013 |
|
980 |
1,5007 |
|
1000 |
1,5004 |
Thermal Conductivity(specific heat × thermal diffusivity × glass density) |
|||
---|---|---|---|
Temperature (°C) |
Specific heat (J/kg×K) |
Diffusivity (cm2/sec) |
Conductivity (W/m×K) |
25 |
768 |
0,0060
|
1,10 |
100 |
896 |
0,0057
|
1,22 |
200 |
998 |
0,0055
|
1,30 |
300 |
1067 |
0,0053
|
1,35 |
400 |
1110 |
0,0052
|
1,38 |
500 |
1154 |
0,0052
|
1,42 |
Chemical Durability |
||
---|---|---|
Solution |
Reaction time/
|
Weight loss
|
HCl – 5 % | 24 h at 95 °C |
0,79 |
HNO3 – 1M | 24 h at 95 °C |
0,49 |
HF – 10 % | 20 min. at 20 °C |
5,18 |
NH4F:HF – 10 % | 20 min. at 20 °C |
0,84 |
1HF:10HNO3 | 3 min. at 20 °C |
1,48 |
1HF:100HNO3 | 3 min. at 20 °C |
0,16 |
DI H2O | 24 h at 95 °C |
0,00 |
Na2CO3 - 0,02N | 6 h at 95 °C |
0,16 |
NaOH - 5 % | 6 h at 95 °C |
1,83 |
Dielectric Constant & Dissipation Factor |
||
---|---|---|
Frequency (GHz) |
Dielectric Constant |
Loss Tangent |
0,1 |
5,28 |
0,002 |
1 |
5,30 |
0,002 |
2,5 |
5,18 |
0,004 |
10 |
5,14 |
0,008 |
15 |
5,14 |
0,008 |
24 |
5,14 |
0,009 |
60 |
5,11 |
0,011 |
70 |
5,11 |
0,013 |
Volume Resistivity (25–500°C) |
|
---|---|
Temperature (°C) |
Log10 Volume Resistivity
(Ω-cm) |
25 |
22,92 |
250 |
12,98 |
350 |
10,87 |
500 |
8,72 |
EAGLE is an acronym for "Enhanced Attribute Glass for Large-Area Electronics". The XG in the product name stands for "extra green".
Other CORNING® materials in our extensive delivery program are EAGLE2000, 1737F, 7059, PYREX®, MACOR®, and ULE®. For further technical details, please feel free to send an information inquiry.
© 1994 – 2023 Präzisions Glas & Optik GmbH
Last update: 31.10.2023