High-Quality Alumina Ceramic Sheet Plate Ceramic Wafer OEM Factory

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

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

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

Certifications

Our customers

Packaging and shipping

Transport

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)