JNS Glass and Coatings is a preferred worldwide OEM supplier and fabricator of Corning® Gorilla® Glass. JNS works with industrial OEM customers to develop new products and improve existing products using Corning® Gorilla® Glass. JNS supplies Gorilla® Glass from prototyping through production for applications requiring:
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Benefits
– Enhances retained strength after use
– High resistance to scratch and sharp contact damage
– Superior surface quality
Applications
– Smartphones
– Laptop and tablet computer screens
– Mobile devices
Dimensions
Available thicknesses 0.4 mm – 2.0 mm
Viscosity
Softening Point (107.6 poises) 900 ˚C
Annealing Point (1013.2 poises) 628 ˚C
Strain Point (1014.7 poises) 574 ˚C
Properties
Density 2.39 g/cm3
Young’s Modulus 69.3 GPa
Poisson’s Ratio 0.22
Shear Modulus 28.5 GPa
Vickers Hardness (200 g load)
Un-strengthened 534 kgf/mm2
Strengthened 649 kgf/mm2
Fracture Toughness 0.66 MPa m0.5
Coefficient of Expansion 75.8 x 10-7/˚C
(0 ˚C – 300 ˚C)
Chemical Strengthening
Compressive stress ≥ 950 MPa @ 40 µm DOL
Depth of Layer ≥ 50 µm
Optical
Refractive Index (590 nm)
Core glass* 1.50
Compression layer 1.51
Photo-elastic constant 31.9 nm/cm/MPa
*Core index is used for FSM-based measurements since it is unaffected by ion-exchange conditions.
Chemical Durability
Durability is measured via weight loss per surface area after immersion in the solvents shown below. Values are highly dependent upon actual testing conditions. Data reported is for Corning’s Gorilla Glass 3 with NDR™.
| Reagent | Time | Temperature © |
Weight Loss (MG/CM2) |
| HCI- 5% | 24 Hrs | 95 | 0.6 |
| NYH4F:HF-10% | 20 min | 20 | 2.1 |
| HF-10% | 20 min | 20 | 12.3 |
| NaOH – 5% | 6 Hrs | 95 | 1.9 |
| Electrical | |||
| Frequency MHZ | Dielectric Constant | Loss Tangent | |
| 54 | 7.59 | 0.022 | |
| 163 | 7.48 | 0.022 | |
| 272 | 7.44 | 0.021 | |
| 381 | 7.42 | 0.022 | |
| 490 | 7.38 | 0.021 | |
| 599 | 7.37 | 0.022 | |
| 912 | 7.30 | 0.023 | |
| 1499 | 7.26 | 0.023 | |
| 1977 | 7.23 | 0.023 | |
| 2466 | 7.20 | 0.024 | |
| 2986 | 7.19 | 0.025 |
Terminated coaxial line similar to that outlined in NIST Technical Notes 1520 and 1355-R.
Putting Gorilla® Glass 3 with NDR™ to the Test.
Greater damage resistance
It takes more load to initiate radial cracks in the glass.
Enables the use of thinner cover glass
Gorilla® Glass 3 with NDR™ Soda Lime Glass Devices
Devices benefit from greater retained strength.
Enables greater strength
Corning Gorilla Glass 3 with NDR™ exhibits tighter strength distribution.
Greater retained strength
