Flat Glass for Electronic Devices

Extensive product lineup

We offer flat glass with various properties for electronic devices. You can choose the glass that is most suitable for the purpose of use.

Features

  • High-quality glass manufactured with advanced technology
    • Technology that produces exceptionally smooth glass surfaces
    • Technology for achieving superior surface cleanliness
  • Excellent chemical resistance (BDA™-E)
  • Supports thickness of 1.1 mm (CB-1)
  • Low-expansion alkali-free glass (ABC-1)
  • Optimized for image sensor applications (BDA™)

Properties

Properties/Glass code BDA™-E CB-1 ABC-1 BDA™
Coefficient of thermal expansion 30～380℃ ×10-7/K 69 75 37 66
Strain point ℃ 530 525 685 540
Annealing point ℃ 570 560 745 575
Dielectric constant 1MHz, 25℃ 　 6.8 6.9 5.6 6.5
tan δ 1MHz, 25℃ ×10-4 100 100 10 100
Hydrolytic resistance JIS R3502 R2Omg 0.05 0.08 ＜0.01 0.07
Transmittance λ=500nm, t=0.5mm % 92 92 92 92
Refractive index (nd) 1.52 1.51 1.53 1.51
Density ×103kg/m3 2.46 2.47 2.52 2.44
Transmittance
figure of the transmittance

Dimension Examples

　 Dimension Thickness Tolerance of thickness
BDA™-E 2×2mm to 360×440mm 0.1-1.1mm ±0.01-±0.1mm
CB-1 1.1mm
ABC-1 φ100-300mm 0.3-0.5mm
BDA™ 2×2mm to 50×50mm 0.3-0.7mm

Various optical coatings can be designed upon request.

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