Flat Glass for Electronic Devices

Extensive product lineup

NEG offers a wide range of flat glass products with various properties for electronic devices. Select the best option based on your application needs.

Features

  • High-quality glass manufactured with advanced technology
    • Technology that produces exceptionally smooth glass surfaces
    • Technology for achieving superior 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
tanδ 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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