Speciality Glass picture, EAGLE2000
 
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EAGLE2000
Lightweight Low Expansion Glass

Special Properties

  • Lightweight glass
  • Low thermal expansion
  • Near zero alkali content
  • Low density
  • Low sagging

Typical Applications

  • Lightweight AMLCD Substrate
  • Chip on Glass (COG) Applications
  • TFT-LCD Manufacturing
  • High Resolution Displays
  • Sensor Technology

EAGLE2000 glass is a newly developed lightweight AMLCD Alkaline Earth Boro-Aluminosilicate glass with a low density and a low coefficient of thermal expansion. It is a low alkali material with a total alkali content of approximately 0,1 wt% (typ. <0,05 wt%). The AMLCD glass is fusion drawn and features the excellent flatness and the high surface quality that is indispensable for high resolution applications. The low coefficient of thermal expansion, allow EAGLE2000 to be used for COG (chip on glass) processes, and reduces the effect of thermal downshock and breakage. Corning's EAGLE2000 speciality glass shows an even higher chemical durability than 1737. The high, broadband optical transmission and low light absorbance, in combination with the low mass of EAGLE2000, make it an ideal solution for many demanding optical applications.


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Specifications of EAGLE2000
lightweight low expansion glass*

 
Show transmission curve of EAGLE2000 glass

Refractive Index

  • nD = 1,5068 (589,3nm)

Density

  • 2,37 g/cm3 (20°C)

Young's Modulus

  • 70,9 GPa

Poisson's Ratio

  • 0,23

Shear Modulus

  • 28,9 GPa

Coefficient of Thermal Expansion

  • 31,8 x 10-7/ °C (0-300°C)
  • 36,1 x 10-7/ °C (25-670°C)
    (room temperature to setting point)

Viscosity

  • Working Point (104 dPas): 1321°C
  • Softening Point (107,6 dPas): 985°C
  • Annealing Point (1013 dPas): 722°C
  • Strain Point (1014,5 dPas): 666°C

Electrical Properties

  • Dielectric Constant 5,181 (20°C / 1 kHz)
  • Loss Tangent 0,4% (20°C / 1 kHz)

Chemical Properties

Medium

5% NaOH

N/50 Na2CO3

5% HCL
Temp. (°C) 95 95 95
Reaction Time (h) 6 6 24
Weight loss
(mg/cm2)		 1,61 0,14 0,3

Standard Thicknesses

Tk

Tolerance

Tk

Tolerance
0,7mm ±10% 1,1mm ±10%

*Please consider the "Notes on technical specifications"