Aluminum Nitride Electrostatic Chucks (AlN ESC) for Precision Semiconductor Manufacturing
In advanced semiconductor production, wafers undergo numerous processing steps across multiple equipment stations. To ensure stable handling and positioning during these critical operations, the Aluminum Nitride Electrostatic Chuck (ESC) provides the ideal solution.
How Aluminum Nitride Electrostatic Chucks Work
Utilize high-voltage electrodes to generate a uniform electrostatic force

Securely clamp wafers without mechanical stress or warping
Maintain exceptional flatness for optimal processing accuracy
Ensure contamination-free operation for high-purity applications
Why Choose Aluminum Nitride (AlN) for ESCs?
Superior Thermal Conductivity – Efficient heat dissipation for temperature-sensitive processes
Excellent Electrical Insulation – Maintains performance under high-voltage conditions
High Purity & Stability – Ideal for demanding semiconductor environments
Custom AlN Electrostatic Chuck Solutions
At Edgetech Industries (Advanced Ceramics Division), we specialize in manufacturing:
High-performance AlN ceramic ESCs tailored to your specifications
Precision-engineered components for semiconductor, LED, and display production
Cost-effective solutions without compromising quality
Aluminum Nitride Ceramic Parameter
| Item | Unit | AlN |
| Physical Property | ||
| Color | \ | Grayish white, Beige |
| Volume Density | g/cm3 | 3.3 |
| Surface roughness | um | 0.2-0.85 |
| Warpage | (length ‰) | ≤3 |
| Thermal properties | ||
| Thermal conductivity | W/m.k | 170-230 |
| Thermal expansivity | x 10-6/°C (20℃-800℃) | 4-6 |
| Mechanical properties | ||
| Flexural strength | MPa | ≥300 |
| Electrical properties | ||
| Dielectric constant | 1MHZ, 25℃ | 8-9 |
| Dielectric strength | KV/mm | ≥15 |
| Volume resistivity | Ω.cm | ≥1014 |
Typical characteristic
-Very high thermal conductivity
-High insulation capacity
-Low dielectric constant, effective against electronic signal interference
-Low thermal expansion
-Good metallization capacity
-Expansion coefficient can be matched with semiconductor silicon wafer
-Better mechanical strength than alumina
-Good corrosion resistance to molten metal
-Minimum impurity content, non-toxic, high purity
Application of AlN ceramic electrostatic chunk
Industry Applications
300mm wafer processing for advanced logic and memory devices
Compound semiconductor manufacturing (GaN, SiC)
Advanced packaging applications including fan-out wafer-level packaging
Micro-LED display production
Edgetech Industries delivers cutting-edge AlN electrostatic chuck solutions with:
Proprietary ceramic formulations for enhanced performance
Custom designs tailored to your equipment specifications
Rigorous quality control meeting SEMI standards
Packing
Our Aluminum Nitride Electrostatic Chuck is carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition.
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