Electrical Insulating 95% 99% Al2O3 Alumina Ceramic Disc/Wafer/Ring

 Alumina Ceramic Wafers

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 Advantages for Industrial Applications:

1、Semiconductor Processing
Our alumina wafers serve as ideal diffusion plates in CVD chambers, withstanding 1450°C process temperatures while maintaining ±0.5% flatness tolerance for uniform deposition.

2、Power Electronics Insulation
Case Study: Implemented in EV battery modules as insulating washers, reducing thermal resistance by 40% compared to polymer alternatives in 800V systems.

3、Laser Equipment Components
The 99.6% alumina composition provides >98% reflectivity for CO₂ laser wavelengths (10.6μm), making these wafers perfect for beam delivery system mounts.

4、Ultra-High Vacuum Systems
Tested to maintain <1×10⁻⁹ Torr leak rates, our ceramic shims are NASA-qualified for spaceflight instrument mounting.

Customization Options:

- Through-hole configurations (0.1-5mm diameter)

- Metallized edges for brazing (Mo-Mn or W coatings)

- Precision lapping to λ/4 optical flatness

- Laser-marked serialization for traceability

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

Packaging and shipping

Company

Yixing Shengda Refractory Ceramic Co, Ltd. was established in Yixing City, China in 1995, witha production area of over 10,000m2. lt is an enterprise specializing in the production of aluminaceramic,zirconia ceramic,slicon nitride, silicon carbide and other precision ceramic products. 

And we also produce ceramic band heaters, ceramic terminal block, cordierite and mullite ceramic parts an other ceramic products.

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)