8inch Quartz Wafer Diameter 200mm TTV ≤10μm Ra ≤1.0 nm For High-Precision Sensors
The 8-inch quartz wafer is a precision substrate material fabricated from high-purity synthetic quartz glass (SiO₂), offering exceptional physical, chemical, and optical properties. With a standard diameter of 200mm (8 inches) and customizable thickness (e.g., 0.5mm–10mm), it is widely used in high-end semiconductor, optoelectronic, and optical applications. Due to its ultra-high purity (≥99.99%), low coefficient of thermal expansion, outstanding thermal stability, and superior UV-IR transmittance, quartz wafers are an ideal choice for critical processes such as photolithography, etching, and thin-film deposition. Additionally, their stable dielectric properties and radiation resistance make them suitable for high-precision sensors and aerospace-grade components.
Data for 8inch quartz wafer
| Parameters |
Values/Specifications |
| Diameter |
200 mm (8-inch) |
| Thickness Range |
100 μm – 3000 μm |
| Total Thickness Variation (TTV) |
≤10 μm |
| Surface Roughness (Ra) |
≤1.0 nm |
| Total Impurity Content |
≤2.0 μg/g (High-Purity Grade) |
| Thermal Expansion Coefficient |
0.55×10⁻⁶/K (20–300°C) |
| Temperature Resistance |
Softening Point 1683°C, Short-term Tolerance up to 1450°C |
| UV Transmittance |
>90% Average Transmittance (200–260 nm) |
| Applications |
Semiconductor Lithography Masks, UV Optical Devices, MEMS Sensors, Laser Systems |
Key features & advantages of 8inch quartz wafer
1. High Purity (≥99.99%): Minimizes impurities in semiconductor processes, improving yield.
2. Excellent Thermal Stability: Softening point up to 1730°C, suitable for high-temperature processes (e.g., diffusion, oxidation).
3. Low Thermal Expansion (5.5×10⁻⁷/°C): Reduces deformation under thermal stress, enhancing machining precision.
4. High Transmittance (185nm–2.5μm): Ideal for UV lithography, optical sensors, and laser applications.
5. Chemical Resistance: Resists strong acids (except HF) and alkalis, suitable for wet etching environments.
6. High Flatness (<1μm TTV): Ensures uniformity in photolithography and thin-film deposition.
Application fields of 8inch quartz wafer
| Industry |
Applications |
Key Benefits |
| Semiconductor |
Photomask substrates, etching carriers, CMP polishing pads, diffusion process trays |
High-temperature stability, ultra-low defects, ensures chip manufacturing precision |
| Photovoltaics |
PECVD processes for solar cells, diffusion furnace carriers, thin-film deposition substrates |
Thermal shock resistance, enhances cell efficiency |
| Optoelectronics |
LED/LD substrates, laser windows, optical sensor protection |
High UV-IR transmittance, low fluorescence, improves device performance |
| Precision Optics |
Lens substrates, prisms, beam splitters, IR windows |
Low thermal expansion, high homogeneity, ensures optical system stability |
| Research & Lab |
Synchrotron radiation devices, VUV experiments, high-energy physics detectors |
Radiation-resistant, withstands extreme environments |
| Aerospace |
Satellite optical windows, high-temperature observation windows for spacecraft |
Cosmic ray resistance, thermal shock endurance, space-ready |
Custom 8inch quartz wafer Solutions
ZMSH specializes in R&D, production, and sales of high-precision quartz glass products, offering:
· Multiple Sizes: 2"–12" wafers, with non-standard customizations (e.g., square, special shapes).
· Diverse Shapes: Round, square, annular, sector-shaped, etc., tailored to equipment needs.
· Material Options: Synthetic quartz (JGS1/JGS2/JGS3), fused silica, low-OH quartz.
· Surface Treatments: Polishing, coatings (AR/IR/DLC), drilling, grooving, etc.
· Industry-Specific Solutions: Custom quartz components for semiconductors, photovoltaics, optical communications, etc.
Related product recommendations
Brief intro of quartz glass windows:
ZMSH provides precision-customized quartz glass windows for UV-Vis-IR optical systems. Customizable features include:
· Shapes: Round, square, rectangular, or complex geometries.
· Dimensions: Diameter 1mm–500mm, thickness 0.1mm–50mm.
· Surface Finishes: Double-side polishing, AR coatings, metal coatings.
· Applications: Laser windows, vacuum viewports, high-temperature viewfinders, spectrometer components.
Equipped with advanced CNC engraving, laser cutting, and coating technologies, ZMSH guarantees high transmittance, low wavefront distortion, and environmental durability.
Prototyping and mass production available—contact us for tailored solutions!
FAQ of 8inch quartz wafer
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