AGC EN-A1 Alkali-Free Boro-Aluminosilicate Glass
Abrisa Technologies offers Asahi Glass Corporation (AGC) EN-A 1 material, a highly transmissive, alkali-free thin boro-aluminosilicate glass that is ideal for highly sensitive bio-photo detection applications, high throughput sensor applications and as enhancement glass for thin displays and cover glass for micro arrays.
Its coefficient of thermal expansion (CTE) of 38 x 10-7 is well matched to silicon, making it an ideal and economical choice for use as a glass polishing substrate for the thinning process (back grinding) of semiconductor chips supporting low profile electronic device manufacture.
Features
- Alkali-free
- CTE well matched to silicon
- Standard thicknesses 0.3, 0.5, 0.7mm
- Sizes up to 25″ x 20″ (635mm x 508mm)
- High Transmittance from 400 – 2300nm
- Good chemical resistance
- Low fluorescense at genomic excitation wavelengths
Applications
- Image sensor windows
- Cover glass for micro arrays
- Display enhancement glass
- Biosensors
- Glass for semiconductor thinning
- Low weight, reduced profile designs
Mechanical Properties
Density
g/cm3
2.51
Young’s Modulus
GPa 77
77
Poisson’s Ratio
0.22
Thermal Properties
CTE (Thermal Expansion)
(50-250°C) x 10-7 / °C
38
Glass Transformation Point
°C
720
Strain/Softening Point
°C
950
Optical Properties
Refractive Index
Nd
1.52
Chemical Properties
Acid Resistance (HF 5% at 25°C, 20 min.)
Mg/cm2
3.1
Electrical Properties
Bulk/Volume Resistivity
Log (Ω • cm)
13.6
Dielectric Constant
At 0.001 GHz RT
5.5
Dielectric Constant
At 10 GHz RT
5.5
Dissipation Factor
At 0.001 GHz RT
0.002
Dissipation Factor
At 10 GHz RT
0.006
Similar CTE Trend as Silicon
Transmission Curves
UV to Blue Transmission
Primary Transmission Range
NIR – MWIR Transmission
