Product Overview
A Sapphire Lift Pin is a precision-engineered component manufactured from high-purity single-crystal sapphire (Al₂O₃). It is designed for wafer lifting, positioning, and transfer in semiconductor processing equipment. Sapphire lift pins are widely used in CVD, PECVD, PVD, MOCVD, RTP, diffusion, etching, and epitaxy systems, where high-temperature resistance, chemical stability, and ultra-clean performance are essential.
Thanks to the exceptional mechanical strength and wear resistance of sapphire, these lift pins help minimize particle generation while ensuring accurate wafer handling throughout semiconductor manufacturing processes.
Key Features
High-Purity Single Crystal Sapphire
Manufactured from premium optical-grade single-crystal sapphire, providing excellent purity, mechanical strength, and long-term reliability in demanding semiconductor environments.
Outstanding High-Temperature Resistance
Sapphire maintains excellent dimensional stability and mechanical properties at elevated temperatures, making it suitable for high-temperature deposition, annealing, and thermal processing equipment.
Excellent Chemical and Plasma Resistance
The material exhibits outstanding resistance to corrosive process gases, plasma environments, and aggressive chemicals, significantly extending component service life.
Ultra-Low Particle Generation
With a Mohs hardness of 9 and exceptional wear resistance, sapphire lift pins reduce friction-induced particle contamination, helping improve wafer yield and process consistency.
High Precision Manufacturing
Each lift pin is precision machined, polished, and inspected to meet strict semiconductor industry standards for dimensional accuracy and surface finish.
Typical Specifications
| Item |
Specification |
| Material |
Single Crystal Sapphire (Al₂O₃) |
| Purity |
≥99.99% |
| Crystal Orientation |
C-plane, A-plane, R-plane, or customized |
| Diameter |
Custom available |
| Length |
Custom available |
| Diameter Tolerance |
Customizable |
| Surface Finish |
Precision polished |
| Surface Roughness |
Ra ≤0.02 μm (optional) |
| End Shape |
Flat, Rounded, Conical, or Customized |
| Working Temperature |
Suitable for high-temperature processing |
| Mounting Style |
Press-fit, Threaded, or Custom |
Custom dimensions and tolerances are available upon request.
Applications
Sapphire Lift Pins are widely used in:
- Semiconductor wafer processing equipment
- Chemical Vapor Deposition (CVD)
- Plasma Enhanced CVD (PECVD)
- Physical Vapor Deposition (PVD)
- Metal Organic CVD (MOCVD)
- Rapid Thermal Processing (RTP)
- Diffusion furnaces
- Plasma etching systems
- Epitaxy equipment
- SiC and GaN semiconductor manufacturing
- LED wafer production
Advantages of Sapphire Lift Pins
- Excellent thermal stability under high-temperature processing
- Superior hardness and wear resistance (Mohs hardness 9)
- Outstanding chemical and plasma corrosion resistance
- Ultra-low particle generation for cleanroom applications
- High electrical insulation
- Long service life with reduced maintenance
- Excellent dimensional stability for precision wafer positioning
requently Asked Questions (FAQ)
1. What is a sapphire lift pin?
A sapphire lift pin is a precision component made from single-crystal sapphire (Al₂O₃) that is used to lift, support, and position semiconductor wafers during manufacturing processes. It is commonly installed in CVD, PVD, PECVD, MOCVD, RTP, and etching equipment where high temperature, chemical resistance, and low particle generation are required.
2. Why is sapphire used for lift pins?
Sapphire offers several advantages over conventional ceramic or metal materials, including:
- Excellent high-temperature stability
- Superior wear resistance (Mohs hardness 9)
- Low particle generation
- Outstanding chemical and plasma resistance
- High electrical insulation
- Long service life
These properties make sapphire an ideal material for precision wafer handling.
3. What semiconductor equipment uses sapphire lift pins?
Sapphire lift pins are widely used in:
- CVD systems
- PECVD systems
- PVD equipment
- MOCVD reactors
- RTP systems
- Diffusion furnaces
- Plasma etching equipment
- Wafer inspection and handling systems
- SiC and GaN semiconductor manufacturing equipment
Product Tags:
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Sapphire Lift Pin for Semiconductor Wafer Handling Images
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