SHANGHAI FAMOUS TRADE CO.,LTD
| Payment Terms | T/T |
| Delivery Time | 2-4 weeks |
| Supply Ability | By case |
| Packaging Details | custom cartons |
| Diameter (inch) | 3/4/6/8/12 |
| Internal Transmittance | >99.9% |
| Refractive Index | 1.474698 |
| Total Transmittance | >92% |
| TTV | <3 |
| Flatness | <15 |
| Brand Name | ZMSH |
| Model Number | Quartz Wafer |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Delivery Time | 2-4 weeks |
| Supply Ability | By case | Packaging Details | custom cartons |
| Diameter (inch) | 3/4/6/8/12 | Internal Transmittance | >99.9% |
| Refractive Index | 1.474698 | Total Transmittance | >92% |
| TTV | <3 | Flatness | <15 |
| Brand Name | ZMSH | Model Number | Quartz Wafer |
| Place of Origin | China |
Quartz wafers are made from crystalline silicon dioxide (SiO₂). The unique properties of quartz make it an essential material in various high-tech industries.
Quartz wafers exhibit excellent characteristics such as high thermal resistance, superior light transmission at specific wavelengths, chemical inertness, and a low coefficient of thermal expansion. These features make them highly suitable for applications that require stability under extreme temperatures, resistance to harsh chemicals, and transparency in specific spectral ranges.
In industries such as semiconductor manufacturing, optics, and MEMS (Micro-Electro-Mechanical Systems), quartz wafers are widely used due to their ability to withstand high temperatures without deformation or degradation. They serve as substrates for thin-film deposition, microstructure etching, or the fabrication of precision components that demand high dimensional accuracy and thermal stability.
Crystal Growth
Quartz boules are grown using natural or synthetic seed crystals through hydrothermal or flame fusion (Verneuil) methods.
Ingot Slicing
Cylindrical ingots are sliced into wafers using diamond wire saws, ensuring thickness uniformity and minimal kerf loss.
Lapping and Polishing
Wafers are lapped, etched, and then polished to achieve a mirror-smooth finish with low surface roughness (Ra < 1 nm for optical-grade wafers).
Cleaning & Inspection
Ultrasonic or RCA cleaning removes particulates and metallic contaminants. Each wafer undergoes dimensional and surface flatness inspection.
| Quartz Type | 4 | 6 | 8 | 12 |
|---|---|---|---|---|
| Size | ||||
| Diameter (inch) | 4 | 6 | 8 | 12 |
| Thickness (mm) | 0.05–2 | 0.25–5 | 0.3–5 | 0.4–5 |
| Diameter Tolerance (inch) | ±0.1 | ±0.1 | ±0.1 | ±0.1 |
| Thickness Tolerance (mm) | Customizable | Customizable | Customizable | Customizable |
| Optical Properties | ||||
| Refractive Index @365 nm | 1.474698 | 1.474698 | 1.474698 | 1.474698 |
| Refractive Index @546.1 nm | 1.460243 | 1.460243 | 1.460243 | 1.460243 |
| Refractive Index @1014 nm | 1.450423 | 1.450423 | 1.450423 | 1.450423 |
| Internal Transmittance (1250–1650 nm) | >99.9% | >99.9% | >99.9% | >99.9% |
| Total Transmittance (1250–1650 nm) | >92% | >92% | >92% | >92% |
| Machining Quality | ||||
| TTV (Total Thickness Variation, µm) | <3 | <3 | <3 | <3 |
| Flatness (µm) | ≤15 | ≤15 | ≤15 | ≤15 |
| Surface Roughness (nm) | ≤1 | ≤1 | ≤1 | ≤1 |
| Bow (µm) | <5 | <5 | <5 | <5 |
| Physical Properties | ||||
| Density (g/cm³) | 2.20 | 2.20 | 2.20 | 2.20 |
| Young's Modulus (GPa) | 74.20 | 74.20 | 74.20 | 74.20 |
| Mohs Hardness | 6–7 | 6–7 | 6–7 | 6–7 |
| Shear Modulus (GPa) | 31.22 | 31.22 | 31.22 | 31.22 |
| Poisson's Ratio | 0.17 | 0.17 | 0.17 | 0.17 |
| Compressive Strength (GPa) | 1.13 | 1.13 | 1.13 | 1.13 |
| Tensile Strength (MPa) | 49 | 49 | 49 | 49 |
| Dielectric Constant (1 MHz) | 3.75 | 3.75 | 3.75 | 3.75 |
| Thermal Properties | ||||
| Strain Point (10¹⁴.⁵ Pa·s) | 1000°C | 1000°C | 1000°C | 1000°C |
| Annealing Point (10¹³ Pa·s) | 1160°C | 1160°C | 1160°C | 1160°C |
| Softening Point (10⁷.⁶ Pa·s) | 1620°C | 1620°C | 1620°C | 1620°C |
A quartz wafer is a thin, flat disc made from crystalline silicon dioxide (SiO₂), typically manufactured in standard semiconductor sizes (e.g., 2", 3", 4", 6", 8", or 12"). Known for its high purity, thermal stability, and optical transparency, a quartz wafer is used as a substrate or carrier in various high-precision applications such as semiconductor fabrication, MEMS devices, optical systems, and vacuum processes.
Quartz is a crystalline solid form of silicon dioxide (SiO₂), while silica gel is an amorphous and porous form of SiO₂, commonly used as a desiccant to absorb moisture.
Quartz is hard, transparent, and used in electronic, optical, and industrial applications.
Silica gel appears as small beads or granules and is primarily used for humidity control in packaging, electronics, and storage.
Quartz crystals are widely used in electronics and optics due to their piezoelectric properties (they generate an electric charge under mechanical stress). Common applications include:
Oscillators and frequency control (e.g., quartz watches, clocks, microcontrollers)
Optical components (e.g., lenses, waveplates, windows)
Resonators and filters in RF and communication devices
Sensors for pressure, acceleration, or force
Semiconductor fabrication as substrates or process windows
Quartz is used in microchip-related applications because it offers:
Thermal stability during high-temperature processes like diffusion and annealing
Electrical insulation due to its dielectric properties
Chemical resistance to acids and solvents used in semiconductor fabrication
Dimensional precision and low thermal expansion for reliable lithography alignment
While quartz itself isn't used as the active semiconductor material (like silicon), it plays a vital supporting role in the fabrication environment—especially in furnaces, chambers, and photomask substrates.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components widely used in electronics, op...
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