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High-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM Factory

Shengda Ceramic provide all kinds of alumina ceramic part. Also can supply the mirror surface treatment to meet the sealing requirements of bearings, etc. Any dimension requirement, please contact us.

Product Introduction

Premium Alumina Ceramic Wafers for High-Tech Applications

As a leading OEM manufacturer of high-purity alumina ceramic wafers, we specialize in 99.6% Al₂O₃ ceramic plates with exceptional thermal and electrical properties. Our ceramic wafers are widely used in semiconductor, LED, and power electronics industries.


Key Technical Specifications:
▸ Material: 99.6% / 99.8% Alumina (Al₂O₃)
▸ Thickness: 0.1mm-15mm (±0.01mm tolerance)
▸ Diameter: 5mm-500mm (custom sizes available)
▸ Surface Finish: Ra ≤0.2μm (mirror polish optional)
▸ Dielectric Strength: ≥15 kV/mm
▸ Thermal Conductivity: 30 W/(m·K)
▸ CTE: 7.2×10⁻⁶/°C (25-800°C)
▸ Flexural Strength: ≥400 MPa

   

High-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM FactoryHigh-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM FactoryHigh-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM Factory


Major Applications of Our Alumina Ceramic Wafers

   1、Semiconductor Processing

     Used as diffusion plates and wafer carriers in CVD/PVD systems

    Case Study: Provided 200mm diameter ceramic wafers for a silicon wafer manufacturer, reducing particle contamination by 60% compared to quartz

   2、LED Substrates

   High-reflectivity 99.7% alumina wafers for COB LED packaging

    Technical Advantage: >92% reflectivity at 450nm wavelength

   3、Power Electronics

    DBC (Direct Bonded Copper) ceramic substrates for IGBT modules

    Performance Data: Withstands 1000+ thermal cycles (-55°C to +250°C)

   4、Medical Devices

    Biocompatible ceramic plates for surgical instruments and implants

    Certification: ISO 9001 compliant, USP Class VI certified

   5、Industrial Sensors

    Precision alumina wafer bases for high-temperature sensors

    Example: Supplied 0.25mm thin wafers for aerospace pressure sensors


Why Choose Our Alumina Ceramic Plates?
✓ Superior Flatness: ≤0.05mm/mm for precision applications
✓ Custom Solutions: Laser cutting, metallization, and via drilling services
✓ Strict QC: 100% dimensional inspection with CMM machines
✓ Fast Turnaround: Prototype delivery within 2 weeks


Performance:

1. The strong acid and alkali resistance of zirconia ceramic shall be better than other materials.

2. Zirconia ceramics are not easy to wear, with strong durability. The hardness is close to the natural diamond and light than metals, also has the gem properties such as never wear and non - discoloring.

3. Can maintain the mechanical strength under high temperature, can be used in the condition with high temperature.

4. Good surface finish quality, could get more glossy smooth surface. Small coefficient of wear, with quite good self - lubricating function, non - magnetic, electric insulation, static - free, anti interference and radiation.


Technical Parameters

PropertiesUnits95%Alumina Ceramic99%Alumina CeramicZirconia CeramicSilicon Nitride
Colour
WhiteLight yellowWhiteBlack
Densityg/cm33.63.863.2
Flexural StrengthMpa3003501100800
Compressive StrengthMPa2500280030002600
Modulus of Elasicity(20℃)Gpa300350320290
Max Use Temperature°C1400150010501300
Thermal CondutivityW(m.K)2030325
Thermal Expansion Cofficient10-6/°C7.58103
Thermal Shock Resistance△T℃140150250600
Dielectric StrengthKV/mm15181514
Dielectric ConstantEr99.2269


Production process

1. Grind and crush the raw materials to be slurry or powder

2. se-different method to making the slurry or powder into semi-finished products

3. Put the semi-finished products into the kiln for dewaxing and sintering;

4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.

5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery

95 alumina substrate


Certifications

95 alumina substrate

Our customers

Wearable Alumina Ring Al2O3 Ceramic Ring Ceramic Insulation Ring


Packaging and shipping

95 alumina substrate

Transport

Alumina AL2O3 Substrate Insulating Ceramic Substrate Thermally Conductive Ceramic Sheet


FAQ:

Q: Do you have the products in stock? 

A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.

Q: How do you pack the goods?

A: Our standard packaging is carton, we can customize it as per your requirement as well.

Q: How many days do you finish the sample?

A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)


Precision Ceramic Zirconia Ceramic Hollow Block

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Whether is a product enquiry or technical help, please send messager here, our team will respond within 8 hours.

Subject : High-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM Factory


High-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM Factory

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If you have any questions or need help, feel free to contact with our team.

Phone

+86 183 5248 9056

Location

Qianluo Village, Dingshu Town, Yixing City, Jiangsu Province, China

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