Various windows, plates and disks that can be optically polished to better than 0.5 microinches (20/10), are excellent as substrates and also in semiconductor form for applications such as: resistor networks, thin and thick film microelectronics, vacuum vapor and sputtering depositions, photomasks, electro optics, semiconductor monitor wafers and other precision optical components.
Soda Lime Glass
7740-Pyrex, Borofloat Glass, Borosilicate Glass
1737F-Alkaline Earth Aluminosilicate Glass (replaces 7509 glass)
0211-Alkali Zinc Borosilicate Glass
7070-Lithium Potash Borosilicate Glass
BK-7 Borosilicate Crown Glass
AF-45 Modified Borosilicate Glass
D-263 Borosilicate Glass
All data is subject to normal manufacturing variations and is provided for reference purposes only. Customers are responsible for selecting the suitability of material for their intended application.
Mirrors, microslides, printed circuit substrates and electronic applications
Density (at 20°C/68°F): 2.44 g/cm³
Thermal Coefficient of Expansion (0/300°C): 8.36 x 10-5/°C
Strain Point: 490°C/ 914°F
Annealing Range:480°C-575°C/896°F-1067°F
Softening Point: 575°C/1067°F
Hydrolytic resistance: class 3
Dielectric Constant: E= 7.75
Filter lens, sheet glass, tubing
Density (at 20°C/68°F): 2.23 g/cm³
Thermal Coefficient of Expansion (0/300°C): 32.5 x 10-7/°C
Strain Point: 510°C/950°F
Annealing Point: 560°C/1040°F
Softening Point: 821°C/1509.8°F
Hydrolytic resistance: class 1
Acid resistance: class 1
Alkali resistance: class 2
Dielectric Constant: E=4.6
Substrates for flat panel displays
Density (at 25°C/77°F):
2.54 g/cm³
Thermal Coefficient of Expansion
(0/300°C; 32/572°F): 37.6 x 10-7/°C;
21 x 10-7/°F
Strain Point: 666°C/1231°F
Annealing Point:721°C/1330°F
Softening Point:975°C/1787°F
Refractive Index (λ=656.3nm):
1.5160
(λ=435.8nm): 1.5290
Optical
transmission
Dielectric Constant: E=5.7
Low loss electrical applications
Density (at 20°C/68°F):
2.13 g/cm³
Thermal Coefficient of Expansion
(0/300°C; 32/572°F): 32 x 10-7/°C;
17.7 x 10-7/°F
Strain Point: 456°C/ 853°F
Annealing Point: 496°C/925°F
Softening Point: NOT MEASURABLE
Refractive Index (λ=589,3nm): 1.469
Hydrolytic resistance: class
2
Acid resistance: class 2
Dielectric Constant: E= 4.0
Density (at 20°C/68°F):
2.51 g/cm³
Thermal Coefficient of Expansion
(20/300°C): 7.0 x 10-6/°C
Strain Point:°C/°F
Annealing Point:°C/°F
Softening Point:°C/°F
Refractive Index(λ=582.1nm): 1.509
Hydrolytic resistance: class
2
Acid resistance: class 1
Alkali resistance: class 2
Dielectric Constant: E=
LCD, solar cells, hybrid circuits, CCD covers, electroluminescent displays
Density (at 20°C/68°F):
2.72 g/cm³
Thermal Coefficient of Expansion
(20/300°C): 4.5 x 10-6/°C
Strain Point: 627°C/1161°F
Annealing Point: 663°C/1225°F
Softening Point: 883°C/1621°F
Refractive Index(λ=588nm):
1.5255
Optical
transmission
Dielectric Constant: E= 6.2
Touch control panels, LCD, solar cells, electroluminescent displays
Density (at 20º C/68 ºF):
2.51 g/cm³
Thermal Coefficient of Expansion
(20/300°C; 68/572°F): 7.2 x 10-6/K
Strain Point: 529°C/984°F
Annealing Point: 557°C/1035°F
Softening Point: 736°C/1357°F
Refractive Index (λ=546nm):
1.5255
(λ=588nm): 1.5230
Optical
transmission
Hydrolytic resistance: class 1
Dielectric Constant: E= 6.7
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Updated: 6 May 2008 |
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