Industry Application

Semiconductor Manufacturing
微型軸承應用

Semiconductor wafer processing equipment operates in 10⁻⁷ mbar high vacuum environments, with lithography equipment demanding nanometer-level repeatability. Any minor vibration or volatile contamination can directly cause wafer defects, resulting in significant scrap losses. This is one of the most demanding industrial environments for miniature bearing material selection, lubrication design, and precision control.

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Requirements

Bearing challenges in semiconductor applications

Semiconductor manufacturing equipment demands bearings with simultaneous vacuum compatibility, nanometer-level precision, cleanroom suitability, and extremely high reliability.

Vacuum Environment

10⁻⁷ mbar high vacuum

Wafer etching, thin film deposition, and lithography equipment all operate in high vacuum chambers. Bearing materials and lubricants must have extremely low volatility (low outgassing) to prevent gas release from contaminating the process environment.

Nanometer-Level Precision

Nanometer-level repeatability

EUV/DUV lithography wafer positioning stages require nanometer-level repeatability. Any minor vibration can cause linewidth anomalies. Precision bearing NRRO (non-repetitive run-out) control is the foundation of system precision.

Cleanroom Compatible

Low particle emission design

Semiconductor cleanrooms have strict limits on airborne particles. Thin-section bearings for wafer transfer robot arms require low particle emission design to prevent bearing wear particles from contaminating wafer surfaces.

High Reliability & Long Life

40,000+ hours continuous operation

Semiconductor equipment has extremely high capital expenditure, and unplanned downtime costs include not just repair expenses but entire production line shutdown losses. Well-designed bearing systems can achieve 40,000+ hours of continuous fault-free operation.

myonic Solutions

Bearing solutions for semiconductor applications

myonic provides specialized miniature bearing solutions for vacuum environments, cleanrooms, and high-precision semiconductor equipment, covering complete solutions for material selection, lubrication design, and dimensional optimization.

Vacuum-Rated

Vacuum-Rated Bearings

Bearings designed specifically for semiconductor manufacturing vacuum chambers, using low-volatility materials and vacuum-compatible lubrication. Silver (Ag) coating or molybdenum disulfide (MoS₂) solid lubrication for ultra-high vacuum environments, PFPE vacuum grease for medium vacuum environments.

  • Silver (Ag) or MoS₂ solid lubrication for 10⁻⁷ mbar and below
  • Low outgassing stainless steel or hybrid ceramic materials
  • Anti-outgassing PVD coating options
  • Suitable for etch chambers, CVD/PVD deposition equipment
  • Turbomolecular pump oil-free lubrication high-speed solutions
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Hybrid Ceramic

Hybrid Ceramic Cleanroom Bearings

Silicon nitride (Si₃N₄) ceramic ball bearings provide lower particle emission, better electrical insulation, and longer life, particularly suitable for wafer transfer robot arms and CMP chemical mechanical polishing equipment in cleanroom environments.

  • Si₃N₄ ceramic balls with extremely low particle emission
  • Electrical insulation preventing electrostatic discharge damage to wafers
  • Thin-section design suitable for compact robot arm structures
  • Suitable for CMP polishing heads and spin-dry equipment
  • Low friction coefficient reducing particle generation
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High Precision

High-Precision Lithography Stage Bearings

High-precision bearings designed for EUV/DUV lithography wafer positioning systems, ensuring nanometer-level positioning repeatability through strict NRRO non-repetitive run-out control. Higher preload configurations further enhance system rigidity and precision.

  • Nanometer-level NRRO non-repetitive run-out control
  • Precision preload configuration enhancing system rigidity
  • Suitable for EUV/DUV scanner platforms
  • Dedicated design for FOUP and reticle transfer systems
  • High positioning repeatability eliminating process defect sources
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Application Cases

Real-world semiconductor bearing applications

The following showcases typical application scenarios and technical highlights of miniature bearings in semiconductor manufacturing equipment.

Semiconductor wafer processing vacuum chamber
Vacuum Chamber
Wafer Etching & Thin Film Deposition Equipment
Etch and chemical vapor deposition (CVD) equipment vacuum chambers operate at 10⁻⁷ mbar and below. Drive mechanism bearings must use solid lubrication or special vacuum grease to prevent volatile gases from contaminating the process chamber while maintaining stable operation in high-temperature environments.
10⁻⁷ mbar Solid Lubrication High-Temp Vacuum
FOUP wafer transport cleanroom system
Lithography
FOUP & Reticle Transfer Systems — Cleanroom Precision Positioning
Lithography FOUP wafer carrier transfer systems and reticle handling mechanisms use miniature bearings (5-20 mm bore) for precision positioning in cleanroom environments. Hybrid ceramic thin-section bearings protect wafer and reticle surfaces through low particle emission, with preload configurations enhancing transfer system positioning rigidity and repeatability.
Thin-Section Bearing Hybrid Ceramic FOUP Transfer Low Particle Emission
Wafer transfer robot arm
Wafer Transfer
Cleanroom Wafer Transfer Robot Arms
Wafer transfer robot arms operate frequently in Class 1 cleanroom environments. Thin-section hybrid ceramic bearings not only meet the space requirements of compact arm structures but also protect wafer surfaces from contamination through extremely low particle emission, serving as the standard configuration for modern semiconductor front-end processes.
Thin-Section Bearing Hybrid Ceramic Low Particle Emission
Turbomolecular pump bearings
Vacuum Pump
Turbomolecular Pump — Ultra-High Speed Oil-Free High Vacuum
Ball bearing-type turbomolecular pumps are critical components for maintaining high vacuum in semiconductor equipment, with speeds reaching tens of thousands of rpm under oil-free lubrication. Ceramic or hybrid ceramic miniature bearings (8-20 mm bore) with solid lubrication solutions provide over 40,000 hours of continuous operation life in vacuum environments, serving as a mature alternative to magnetic levitation types.
Ball Bearing Type 8-20 mm Bore Solid Lubrication 40,000+ Hours
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