Product Name: Semiconductor Porous Silicon Carbide Ceramic Sucker
Product Material: Porous Silicon Carbide Ceramic
Material Characteristics:
Adjustable porosity, High temperature resistance, Excellent thermal shock resistance, Good mechanical strength, Outstanding corrosion resistance
Application Fields:
Semiconductor wafer handling, Vacuum chuck systems, High-temperature processing, Precision manufacturing
Application Industries:
Semiconductor manufacturing, Electronic components production, Precision instrumentation, Solar cell production
Processing Difficulties:
Precise porosity control, Uniform pore distribution, Maintaining dimensional stability, Achieving surface flatness, Preventing micro-cracks
Processing Flow:
Powder preparation → Additive mixing → Forming → Sintering → Precision machining → Surface treatment → Quality inspection → Cleaning and packaging
Delivery Period:
30-45 days
The porous silicon carbide vacuum chuck is a precision vacuum holding component designed for semiconductor wafer handling, grinding, thinning, inspection, and processing equipment. Made from porous sintered silicon carbide (Porous SSiC), its interconnected pore network distributes vacuum across the working surface for stable wafer holding. The structure helps reduce uneven suction and wafer movement while providing the wear resistance, dimensional stability, and chemical resistance required in demanding semiconductor environments.
This porous SiC vacuum chuck is manufactured from porous silicon carbide ceramic, which differs from conventional dense silicon carbide.
The ceramic body contains an interconnected network of micropores that allows air to pass through the material. When connected to a vacuum system, the working surface forms a distributed vacuum adsorption area rather than relying only on individual vacuum holes or machined grooves.
Porous SiC combines high hardness, wear resistance, thermal stability, thermal shock resistance, and chemical resistance, making it suitable for semiconductor wafer handling, grinding, inspection, and precision processing equipment requiring stable vacuum holding and long-term performance.
Used as a semiconductor wafer vacuum chuck for wafer loading, transfer, positioning, and automated handling. The porous working surface provides distributed adsorption, allowing the wafer vacuum chuck to maintain stable wafer positioning during equipment operation.
The porous SiC structure functions as a precision wafer holding vacuum chuck, providing broad-area support during wafer back grinding, thinning, and other processes where stable and uniform wafer holding is important.
Suitable for wafer inspection, measurement, and positioning equipment where the wafer must remain stable on a precision reference surface during dimensional inspection, process monitoring, or other measurement operations.
The chuck can be integrated into wafer handling systems, vacuum stages, and cleanroom automation equipment requiring reliable adsorption, wear resistance, and dimensional stability.
Suitable for holding LED wafers, electronic substrates, and other thin precision workpieces during processing, inspection, positioning, or transfer.
The distributed vacuum surface can also support thin and fragile wafer-type components during solar wafer and precision substrate processing.
Explore more precision ceramic components for wafer processing and semiconductor equipment in our Semiconductor Ceramic Solutions.
As a porous ceramic vacuum chuck, the interconnected pore structure distributes vacuum airflow across a larger working area instead of concentrating suction at a limited number of vacuum holes. This helps provide more consistent adsorption across the wafer contact surface.
Distributed adsorption helps reduce localized suction concentration and unwanted wafer movement, providing stable support for thin wafers during handling, grinding, thinning, and inspection.
Sintered silicon carbide provides high hardness and excellent wear resistance. This helps the working surface maintain its condition during repeated wafer loading, unloading, and long-term equipment operation.
The low thermal expansion of silicon carbide helps limit dimensional changes caused by temperature variation, supporting stable geometry and working-surface accuracy in precision semiconductor equipment.
Silicon carbide provides good chemical stability in demanding process environments, making the silicon carbide wafer chuck suitable for semiconductor and precision manufacturing applications where corrosion resistance is required.
| Parameter | Technical Indicator | Functional Significance |
|---|---|---|
| Material Grade | Porous SSiC (Sintered SiC) | High stiffness and chemical purity for wafer safety. |
| Average Pore Size | 10–80 μm (Customizable) | Smaller pores provide more uniform suction for thin wafers. |
| Porosity | 30%–55% | Balances high vacuum airflow with mechanical strength. |
| Flatness | ≤ 2 μm (Across φ300 mm) | Essential for nanometer-level lithography and inspection. |
| Vickers Hardness | 20–25 GPa | Extremely wear-resistant; maintains precision over time. |
| Parallelism | ≤ 5 μm | Ensures the wafer remains perfectly level during processing. |
| Thermal Expansion | 4.0 × 10−6/K | Low expansion prevents warping during temperature shifts. |
| Cleanliness | Class 10 Cleanroom Compatible | Near-zero particle generation or outgassing. |
| Material | Vacuum / Airflow Design | Main Advantages | Recommended Applications |
|---|---|---|---|
| Porous Silicon Carbide (Porous SiC) | Distributed airflow through an interconnected porous structure | Wear resistance, thermal stability, dimensional stability, and chemical resistance | Wafer grinding, thinning, handling, inspection, and applications requiring distributed vacuum adsorption |
| Porous Alumina | Airflow passes through the porous ceramic structure | Electrical insulation and cost-effective ceramic performance | General vacuum fixtures and applications requiring electrical insulation |
| Dense Silicon Carbide (Dense SiC) | Typically uses machined vacuum holes, grooves, or channels | High rigidity, hardness, wear resistance, and precision geometry | Precision wafer chucks where structural rigidity and machined vacuum features are the primary requirements |
| Aluminum Nitride (AlN) | Typically uses designed vacuum holes or channels | High thermal conductivity combined with electrical insulation | Wafer holding applications where thermal management and electrical insulation are important |
For applications requiring a dense SiC structure with machined vacuum holes or channels, see our Silicon Carbide Ceramic Semiconductor Wafer Vacuum Chuck.
For additional custom SiC components used in semiconductor and precision equipment, explore our Silicon Carbide Ceramics.
A porous silicon carbide vacuum chuck is a precision ceramic holding component that uses an interconnected pore network to distribute vacuum through the working surface. When connected to a vacuum system, it creates distributed suction for holding semiconductor wafers and other flat precision workpieces.
Porous SiC combines distributed vacuum airflow with high hardness, wear resistance, dimensional stability, low thermal expansion, and chemical resistance. These properties make a SiC wafer vacuum chuck suitable for wafer handling, grinding, thinning, inspection, and other processes requiring stable wafer support.
Yes. The average pore size can be customized within the available 10–80 μm range. The appropriate pore size depends on wafer dimensions, vacuum system conditions, airflow requirements, and the required adsorption performance.
A porous SiC vacuum chuck distributes vacuum through an interconnected pore network within the ceramic body. A dense SiC wafer chuck normally uses machined vacuum holes, grooves, or channels. Porous SiC is particularly suitable when distributed vacuum adsorption is required, while dense SiC is often selected when structural rigidity and precision-machined vacuum features are the main priorities.
Yes. CERAMPRO supports custom wafer vacuum chuck manufacturing based on customer 2D or 3D drawings. Diameter, thickness, pore structure, working surface, mounting features, and other dimensions can be evaluated according to the equipment design and application requirements.
Please provide your drawing or required dimensions, wafer size, pore size or porosity requirements if available, vacuum conditions, flatness and parallelism requirements, mounting structure, operating environment, and expected quantity. If some parameters have not yet been finalized, our engineering team can review the application before quotation.
Yes. CERAMPRO supplies semiconductor wafer vacuum chucks and custom porous SiC ceramic components to semiconductor equipment manufacturers and industrial customers in the United States and other international markets. We support prototype validation, small-batch production, and repeat OEM manufacturing based on customer drawings and technical requirements.
