This product is made from high-purity alumina ceramic (Al₂O₃ ≥99.5%), suitable for large-diameter ceramic ring components used in semiconductor equipment, vacuum systems, and precision industrial applications. The material provides excellent electrical insulation, chemical stability, wear resistance, and dimensional stability.
High hardness, excellent wear resistance, strong electrical insulation, good chemical corrosion resistance, low porosity, and stable performance under high-temperature or vacuum environments. Large ceramic rings can be precision-machined according to customer drawings, including flatness, concentricity, surface finish, and dimensional tolerance requirements.
Semiconductor manufacturing, wafer processing equipment, vacuum chamber systems, plasma processing equipment, high-temperature furnace equipment, precision machinery, aerospace, and advanced industrial equipment.
Delivery time will be evaluated based on part size, material grade, machining difficulty, tolerance requirements, surface finish requirements, and order quantity.
High-purity alumina ceramic semiconductor large diameter rings are precision ceramic components used in semiconductor wafer processing equipment, vacuum chambers, plasma processing systems, and high-temperature process equipment. Made from 99.5%–99.8% Al2O3 ceramic, these rings offer reliable electrical insulation, wear resistance, chemical stability, and dimensional stability, helping equipment manufacturers reduce contamination, deformation, insulation failure, and assembly risks in demanding environments.
This product is mainly manufactured from high-purity alumina ceramic, with common purity levels ranging from 99.5% to 99.8% Al2O3. Alumina ceramic provides high hardness, excellent electrical insulation, good wear resistance, chemical corrosion resistance, and thermal stability, making it suitable for ceramic rings, insulation rings, support rings, process rings, and vacuum chamber-related components used in semiconductor equipment.
For projects with higher requirements for cleanliness, strength, dimensional stability, or operating conditions, material purity, processing method, and inspection standards can be further evaluated based on customer drawings and application needs.
High-purity alumina ceramic large diameter rings are suitable for equipment environments that require cleanliness, electrical insulation, wear resistance, and dimensional accuracy.
CERAMPRO provides custom high-purity alumina ceramic large diameter rings for semiconductor equipment, vacuum systems, high-temperature equipment, and precision industrial applications.
We focus not only on producing ceramic rings, but also on helping customers achieve stable performance in real equipment conditions. Key factors such as dimensional accuracy, flatness, concentricity, surface roughness, material cleanliness, and insulation performance are considered during the evaluation process. For large-size ceramic ring projects, we can review the drawing, application environment, and assembly requirements to recommend suitable material, processing, and inspection solutions.
| Parameter | Technical Indicator | Functional Meaning |
|---|---|---|
| Material Purity | 99.5%–99.8% Al2O3 | Helps reduce contamination risks in semiconductor plasma chamber environments. |
| Diameter Range | 300 mm–800 mm | Supports large diameter ceramic rings for 12-inch wafer-related equipment. |
| Sintered Density | ≥ 3.90 g/cm3 | High density supports vacuum sealing and stable performance in plasma environments. |
| Flatness / TTV | 0.05 mm for large surface areas | Important for gas sealing, assembly contact, and uniform thermal contact. |
| Surface Roughness | Ra 0.2 μm, ground surface | Helps reduce particle generation and by-product adhesion. |
| Dielectric Strength | 18–22 kV/mm | Provides insulation support for RF power transmission and high-voltage environments. |
| Flexural Strength | 350–450 MPa | Provides good rigidity and helps reduce sagging risks in large-size structures. |
| Concentricity | < 0.03 mm | Helps ensure precise alignment with chambers, housings, or assembly structures. |
| Material | Main Features | Suitable Applications |
|---|---|---|
| Alumina Ceramic Al2O3 | Good insulation, wear resistance, corrosion resistance, and cost control | Semiconductor ceramic rings, insulation rings, vacuum chamber components, furnace parts |
| Zirconia Ceramic ZrO2 | High toughness, good impact resistance, and strong wear resistance | Precision structural parts, wear parts, and ceramic components requiring higher toughness |
| Silicon Carbide Ceramic SiC | Good thermal conductivity, high hardness, thermal shock resistance, and corrosion resistance | Semiconductor carriers, vacuum chucks, high-temperature wear-resistant parts |
| Aluminum Nitride Ceramic AlN | High thermal conductivity and electrical insulation | Semiconductor heat dissipation substrates, heater plates, electronic packaging components |
| Boron Nitride Ceramic BN | Good machinability, thermal shock resistance, and non-wetting behavior with molten metals | High-temperature insulation parts, molten metal handling, furnace components |
For large diameter semiconductor ceramic rings, alumina ceramic is often a practical material choice when customers need a balance of electrical insulation, wear resistance, dimensional stability, cleanliness, and cost control.
It is a large-size precision ceramic ring made from high-purity Al2O3 alumina ceramic. It is mainly used in semiconductor wafer processing equipment, vacuum chambers, plasma processing equipment, and high-temperature process systems.
Alumina ceramic offers good electrical insulation, wear resistance, corrosion resistance, and dimensional stability. It also has a relatively low contamination risk, making it suitable for semiconductor equipment environments that require cleanliness and long-term stability.
Large diameter ceramic rings can be evaluated according to customer drawings. Common diameter ranges can cover approximately 300 mm to 800 mm. The final feasibility depends on thickness, structure, hole and groove design, tolerance requirements, and sintering or machining difficulty.
Yes. Flatness, concentricity, inner and outer diameter accuracy, and surface roughness can be evaluated according to the drawing requirements. For large diameter ceramic rings, tolerance control needs to be reviewed based on the actual size and structural complexity.
Yes. Mounting holes, positioning grooves, steps, chamfers, slots, and other special structures can be machined based on customer drawings. These features are commonly used for support, insulation, sealing, and positioning in semiconductor equipment.
Alumina ceramic is more suitable for applications requiring electrical insulation, wear resistance, dimensional stability, and cost control. Silicon carbide ceramic offers better thermal conductivity, thermal shock resistance, and corrosion resistance, and is often used in higher thermal load or more chemically demanding environments.
Yes. High-density alumina ceramic has low porosity, good chemical stability, and reliable electrical insulation performance. It can be used in vacuum chambers, plasma processing equipment, and RF-related insulation structures.
CERAMPRO can support equipment manufacturers, engineering companies, and maintenance service providers in the United States, Europe, Japan, South Korea, Southeast Asia, and other overseas markets. We can evaluate and produce custom alumina ceramic semiconductor rings based on customer drawings, material specifications, inspection requirements, and real application conditions.
Please provide 2D or 3D drawings, material requirements, outer and inner diameter dimensions, tolerance requirements, surface roughness, application environment, quantity, and whether the part will be used in vacuum, plasma, or high-temperature conditions. Special inspection or packaging requirements can also be provided.
Delivery time is evaluated based on product size, material purity, structural complexity, forming and sintering difficulty, machining accuracy, surface requirements, inspection requirements, and order quantity. For large-size or high-precision ceramic rings, we recommend providing drawings first for technical evaluation.
