Quartz Wafer

The Quartz Wafer Manufacturer!

Alfa Quartz was established in 2013. It is a manufacturer that researches, develops, produces, and sells high-quality semiconductor quartz components, quartz glass instruments, optical quartz glass sheets, PV (Photovoltaic) quartz boats/boat trays, and other accessories.

Why choose us

Professional Team

We provide leading providers of analysis, testing, quality assessment, and failure analysis solutions. As a recognized expert in the field of glass, we provide our customers with reliable solutions, explanations and recommendations.

Best Quality Control

In order to present the best performance, we conduct high standard tests each product between every step. It is guaranteed that our products are qualified by ISO 9001, RoHs, HF and REACH certifications.

Main Market

Our quartz products are sold well in many countries such as the United States, Germany, the United Kingdom, Canada, Japan, and South Korea.

Physical Properties	Values
Purity	＞99.99%
Density	2.2g/cm³
Transparency	＞90%
Mohs Hardness	5.5--6.5
Deformation Point	1280℃
Softening Point	1750℃
Annealing Point	1250℃
Specific Heat (20 - 350°C)	670J/kg.℃
Thermal Conductivity (20°C)	1.4W/m.℃
Heat Conductivity (w/m.k,1000 ℃ )	1.0-1.2
Refractive Index	1.4585
Coefficient of Thermal Expansion	5.5*10 ^-7cm/cm.℃
Hot - working Temperature	1750--2050℃
Short - term Service Temperature	1450℃
Long - term Service Temperature	1100℃

Chemical Properties	Values
Acid resistant	Strong Acid(except HF),Strong alkali, organic solution.
High temperatures Corrosion resistant	Excellent
Metal Impurity Content	＜5 ppm

Electrical Properties	Values
Resistivity	7*10⁷Ω.cm
Insulation Strength	250~400Kv/cm
Dielectric Constant	3.7~3.9
Dielectric Absorption Coefficient	＜4*10^-4
Dielectric Loss Coefficient	＜1*10^-4

Mechanical Properties	Values
Compressive Strength	1100MPa
Bending Strength	67MPa
Tensile Strength	48MPa
Poisson's Ratio	0.14~0.17
Young's Modulus	72000MPa
Shear Modulus	31000MPa

Key Properties of Quartz Wafers

Optical Transparency: Exhibits excellent transmittance from ultraviolet (UV) to infrared (IR), making it ideal for optical components and laser systems.

Electrical Insulation: Extremely high resistivity (up to 10¹⁶ Ω·cm), suitable for high-frequency and high-voltage applications.

Thermal Stability

Low thermal expansion coefficient and high resistance to thermal shock ensure structural stability under extreme conditions.

Piezoelectricity

Certain crystal orientations (e.g., AT-cut, X-cut) exhibit piezoelectric effects, enabling use in acoustic wave devices.

Chemical Resistance

Excellent resistance to most acids, alkalis, and corrosive gases—critical for cleanroom and high-purity processes.

Ultra Thin Quartz Wafer For Semiconductor

Common Uses for Quartz Wafers

Semiconductor manufacturing. When producing semiconductors, quartz wafers are actually the basis for these devices. They're chemically inert products, offering a chemically and thermally stable platform foundation upon which to fabricate chips. Also, quartz is an exceptional electrical insulator, and the material handles radio frequency signals particularly well.

Electronics. Quartz wafers are a high-purity product, making them an ideal choice for quartz crystal oscillators and optoelectronics. Given their impressive transparency, they're important components for manufacturing products like optical lenses and fibers. The wafers also exhibit minimal thermal expansion, allowing them to maintain their integrity in high-heat electronic applications.

Research and development. In R&D operations, you'll find quartz wafers in equipment throughout the lab. Tubes, boats, crucibles, optical cells, and more rely on wafers of this material for their resistance to high temperatures, chemicals, and corrosion. They're also typically a part of pressure sensors, accelerometers, and various other microelectromechanical systems (MEMS). They're beneficial for their ability to transform mechanical energy into electrical energy.

Common surface finishes of Quartz Wafer

Polished

Smooth mirror finish.

Fine ground

Slightly coarse texture.

Flame polished

Glossy smoothness.

Etched

Controlled surface roughness.

Order

Customized quartz can be made,you need send specific drawings.

Please inform me the model number, quantity, packing, and other special requirements if any.

Proforma invoice will be made and sent for your approval.

Production will be arranged upon receipt of your approval and payment or deposit.

Shipping fee paid by customers,the shipping cost depends on different weight.

We will choose the cheapest and safest way according your detail quantities.

Packing Details

We will packing by professional export packing,safety against breakage, finally into the wooden cases/ carton/pallet or customized package. We have ERP authentication.

Delivery Details

We can deliver by SEA,air,rail transportation,the China-Europe Railway Express etc.

TNT, DHL,UPS, FEDEX, EMS，S.F EXPRESS etc.

FAQ

Q: Why are quartz wafers so important in semiconductor manufacturing?

A: Quartz wafers are essential in semiconductor manufacturing because they provide a high-temperature resistant, chemically stable, and electrically insulating substrate. This is indispensable for wafer processing and integrated circuit fabrication. The purity and physical properties of quartz wafers directly impact the performance and reliability of semiconductor devices.

Q: How do the optical properties of quartz wafers affect their applications in the optical field?

A: The high transparency and broad spectral transmission of quartz wafers make them ideal materials for manufacturing high-end optical components, such as lenses, windows, and filters. These properties ensure effective light transmission and precise control, which are critical for enhancing the performance of optical systems.

Q: What are the applications of the piezoelectric effect of quartz wafers in electronic devices?

A: The piezoelectric effect of quartz wafers makes them widely applicable in electronic devices, particularly in the manufacturing of crystal oscillators and sensors. The piezoelectric effect allows quartz wafers to generate an electrical charge when subjected to mechanical stress, which is crucial for precisely controlling frequencies and measuring minute changes.

Q: What sizes are available?

A: Standard sizes are available for 100mm, 150mm, 200mm, and 300mm wafers, with customization options for specialized needs.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation.

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

Q: What is your packing?

A: Yes, our packaging is genuine original packaging. Of course, we can also provide neutral packaging or according to your requirements.

As one of the leading quartz wafer manufacturers and suppliers in China, we warmly welcome you to wholesale bulk quartz wafer for sale here from our factory. Also, customized service is available.