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Ultra-Thin SCHOTT AS 87 eco Aluminosilicate Glass

Touch Displays Biometric & Image Sensors Cover Glass

 

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Schott AS 87 eco is an ultra-thin aluminosilicate glass with extremely high levels of bending and impact strength and superior scratch resistance. It is an excellent choice for use as cover or enhancement glass on low profile displays, touch sensors and other applications where thickness and weight are a concern. Abrisa Technologies also provides the material with optional HIE™ chemical strengthening for even higher levels of Knoop and Vicker’s hardness, perfect for applications with high contact and frequent handling. Custom fabrication to size and shape, optical coatings, screen printed graphics and oleo/ hydrophobic coatings Total Solutions are available from Abrisa Technologies.

 

Benefits:

  • Ultra-Thin for Low Profile Designs
  • Optional HIE™ Strengthening
  • High Impact Damage Resistant
  • Excellent Clear Visual Quality
  • Broad Transmission Range (UVB to IR)
  • RoHS and REACH Compliant

Sheet Sizes:

  • 19.685″ x 15.748″ (500 mm x 400 mm)

Thicknesses:

  • Ranging from 70 – 350 microns
  • Stock thicknesses include: 0.100, 0.145, 0.210*, 0.250* and 0.300* mm
  • *available chemically strengthened

Applications:

  • Cover Glass for Displays & Touch Panels
  • Fingerprint Sensor (FPS)
  • Ultra-Thin Glass Applications
  • Medical & Bio-Medical
  • Automotive Interiors
  • Camera Imaging (CIS)

Ultra-Thin SCHOTT AS 87 eco Aluminosilicate Glass Spectral Transmittance

 

Mechanical Properties
Measurement
Density ρ in g/cm3 (annealed at 40°C/h) 2.46
Young’s modulus E in kN/mm2 73.3
Torsion G modulus in kN/mm2 30.1
Poisson’s ratio μ 0.216
Knoop hardness HK 0.1/20 500/560*
Vickers hardness HV 0.2/25 550/630*
Thermal Properties
 
CTE (Coefficient of thermal expansion) α in 10-6 · K-1 (20°C; 300°C) 8.7
Mean specific heat capacity cp in J/(g · K) (20°C to 100°C) 0.84
Transformation temperature Tg in °C 621
Viscosity lg Ƞ dPas Temp in °C
Strain point 14.5 594
Annealing point 13.0 633
Softening point 7.6 872
Chemical Properties
 
Hydrolytic resistance class HGB 2
Acid resistance class S 4
Alkali resistance class A 1

 

Ultra-Thin SCHOTT AS 87 eco Aluminosilicate Glass High Impact and Bend Strength

High Impact & Bend Strength

 

Optical Properties
 
Refractive index as drawn nD 1.5040 ± 0.0015
Abbe value ve 59.5
Transmittance values ᴛ (⅄) in %, thickness 0.175 mm
 
54 nm 46.3
380 nm 91.5
632.8 nm 92.1
064 nm 92.2
   
Electrical Properties
 
Dielectric constant ᴇr at ϑ = 25 °C  
• At 1 MHz 7.7
• At 1 GHz 7.3
• At 5 GHz 7.2
Dissipation factor tan δ (at ϑ = 25 °C)  
• At 1 MHz 38 · 104
• At 1 GHz 33 · 104
• At 5 GHz 72 · 104
Conductivity at ϑ = 25 °C, direct current in S/cm 5.6 · 10-12

 

Options

Coatings:

  • Custom V-Coat, Multi-band, Broadband AR
  • AR Coatings to MIL-C-14806 A
  • ITO/IMITO for EMI Shielding, Heater, LC Devices
  • Custom SWP, LWP, Bandpass, UV & NIR Blocker
  • Broad/Narrowband Scanning Mirror Coatings
  • Deposition onto Filters, Silicon & Other Materials
  • Autoclavable, Bio or Chemically Compatible

Substrates:

  • Fabrication to Shape & Size
  • Cut & Seam or Circle Ground to Size & Shape
  • Precision CNC – Holes, Bevels, Steps, Notches
  • Damage Resistant Substrates
  • HIE™ Aluminosilicates
  • AGC Dragontrail™
  • Corning® Gorilla®
  • SCHOTT AS 87
  • Chemically Strengthened Soda Lime Float
  • Low Expansion Chemically Resistant Substrates
  • SCHOTT Borofloat® 33
  • Ultra Thin and Wafer Substrates
  • AGC EN-A1
  • Corning® 0211 & Eagle XG®
  • SCHOTT AF32, D263® & AS 87
  • Other
  • Applied Films & Tints
  • GasketApplication
  • Edge Treatment/Blackening

Easy-to-Clean & Anti-Fog Solutions:

  • Fabrication to Shape & Size
  • Oleo/Hydrophobic Options
  • ITO Heater, HT AF Anti-Fog Solutions

Graphics & Bus Bars:

  • Fabrication to Shape & Size
  • Color Matched Epoxy Ink
  • Non-Conductive Ink
  • High Temperature Frit Ink
  • Deadfront Ink – Partially Transmissive
  • Infrared IR Transmitting Ink
  • Silver Epoxy, Silver Frit, CrNiAu Bus Bars

 

 

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