Corning 7980 is a high-purity synthetic amorphous silicon dioxide manufactured via flame deposition. This noncrystalline, transparent silica glass stands out for its impressive optical and thermal properties
Corning 7980 is a high-purity synthetic amorphous silicon dioxide manufactured via flame deposition. This noncrystalline, transparent silica glass stands out for its impressive optical and thermal properties, making it an excellent choice for applications in the photonics and semiconductor industries. With high transparency across a wide wavelength range, HPFS Corning 7980 performs especially well in UV and visible light, achieving transmission rates typically above 90% from 200 nm to 2,500 nm.
Its low thermal expansion, strong resistance to thermal shock, and high durability against chemical and environmental degradation make it suitable for precision applications. Corning 7980 is available in various grades for different applications, such as the 7980 ArF grade and 7980 KrF grade.
While JGS1 and JGS2 substrates are widely used for standard optical applications, Corning 7980 offers enhanced optical performance and thermal stability. These features make Corning 7980 particularly advantageous for high-precision optics and demanding photonics applications.
Corning 7980 substrates are available in sizes ranging from 4 inches to 8 inches and are commonly used in applications such as optical windows, laser components, photolithography, and precision optics manufacturing.
The general specs are as follows sheet, if your specified is not included with it, you may freely tell us and we’ll pleased to customize them for you.
| spec | unit | 4" | 6" | 8" | 10" | 12” |
| Diameter/size(or square) | mm | 100 | 150 | 200 | 250 | 300 |
| Tolerance (±) | mm | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Thickness | mm | 0.10 or more | 0.30 or more | 0.40 or more | 0.50 or more | 0.50 or more |
| Primary reference flat | mm | 32.5 | 57.5 | Semi-notch | Semi-notch | Semi-notch |
| LTV (5mmx5mm) | µm | < 0.5 | < 0.5 | < 0.5 | < 0.5 | < 0.5 |
| TTV | µm | < 2 | < 3 | <3 | <5 | <5 |
| Bow | µm | ±20 | ±30 | ±40 | ±40 | ±40 |
| Warp | µm | ≤ 30 | ≤ 40 | ≤ 50 | ≤ 50 | ≤ 50 |
| PLTV(5mm*5mm)<0.4um | % | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% |
| Edge Rounding | mm | Compliant with SEMI M1.2 Standard/refer to IEC62276 | ||||
| Surface Type | Single Side Polished /Double Sides Polished | |||||
| Polished side Ra | nm | ≤1 | ||||
| Back Side Criteria | µm | general 0.2-0.7 or customized | ||||
Designed for demanding photonics, semiconductor, and laser applications, Corning 7980 delivers excellent performance across ultraviolet (UV), visible, and near-infrared (NIR) wavelengths. Its extremely low thermal expansion coefficient and excellent resistance to thermal shock make it an ideal substrate material for high-precision optical systems operating in challenging environments.
Compared with conventional fused silica materials such as JGS1 and JGS2, Corning 7980 provides enhanced optical homogeneity, lower birefringence, superior laser resistance, and greater dimensional stability, making it the preferred choice for advanced optical engineering projects.
Whether used in semiconductor manufacturing, photolithography, precision optics, or high-energy laser systems, Corning 7980 ensures long-term reliability and consistent performance.
Exceptional Optical Transmission
Corning 7980 offers excellent transmission over a broad spectral range from UV to near-infrared wavelengths.
Typical transmission above 90%
Excellent UV performance from 200 nm to 2500 nm
Low absorption characteristics
Suitable for high-energy optical systems
Superior Thermal Stability
Its extremely low coefficient of thermal expansion minimizes dimensional changes under temperature fluctuations.
Benefits include:
Outstanding thermal shock resistance
Stable optical performance at elevated temperatures
Reduced thermal distortion
Improved system accuracy
High Optical Purity
Manufactured from ultra-pure synthetic silica, Corning 7980 contains extremely low impurity levels.
Advantages:
Excellent optical homogeneity
Low inclusion content
Low birefringence
Reduced scattering losses
Excellent Chemical Resistance
Corning 7980 withstands harsh operating environments.
Properties include:
Resistant to acids and chemicals
Corrosion resistance
Environmental durability
Long service life
Superior Laser Damage Resistance
Engineered for high-power laser applications.
Suitable for:
Excimer lasers
UV laser systems
High-energy photonics equipment
Precision laser optics
Corning 7980 fused silica substrates are widely used across multiple high-tech industries.
Semiconductor Industry
Photolithography systems
Wafer processing equipment
Semiconductor inspection systems
Precision semiconductor optics
Photonics Industry
Optical communication systems
Photonic devices
Waveguide components
Optical sensors
Laser Systems
Excimer laser optics
Laser windows
Beam delivery components
Laser resonators
Precision Optics Manufacturing
Optical windows
Lenses
Mirrors
Beam splitters
Optical flats
Scientific Research
Spectroscopy instruments
Laboratory equipment
Analytical devices
Metrology systems
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