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Waimica case

Case Study: Waimica's Cone Gear Reducer Solution for Probe Card Mounting Positioning Platform in Semiconductor Equipment

2021-03-03 Waimica

Industry Challenges and Pain Points Analysis:

The probe card mounting positioning platform is a critical component in semiconductor equipment used for wafer-level electrical testing. As semiconductor devices become smaller and more complex, the demand for high-precision motion control in this platform increases significantly. A typical setup includes linear actuators, servomotors, and positioning systems driven by high-performance gearboxes or harmonic drives. The industry is evolving toward automation, miniaturization, and higher throughput, requiring more compact and efficient transmission solutions.

However, the sector faces several challenges in transmission systems. Key pain points include:

  • Stability issues: Long-term use under high loads can cause backlash or wear, affecting precision.
  • Energy inefficiency: Inefficient gear transmission leads to high power consumption and thermal issues.
  • Space constraints: Equipment design demands compact components with high torque density.
  • Environmental factors: Cleanroom conditions require high IP ratings and compatibility with harsh environments.
  • High maintenance frequency: Poor bearing and gear design increases downtime for repairs.

Key Role and Technical Requirements of Reducers in the Industry:

Reducers in the probe card mounting positioning platform must meet a unique set of performance criteria. They are required to:

  • Provide high torque density for compact integration.
  • Ensure high transmission accuracy to maintain micrometer-level precision.
  • Support fast response speed to match the dynamic movement of testing mechanisms.
  • Be compatible with a variety of motor types and control systems.

In addition to the above, the following hidden requirements are equally vital:

  • Environmental adaptability: Operation in controlled environments such as cleanrooms and high-temperature chambers.
  • Long service life: Capability to sustain prolonged operation under high load and frequency.
  • Low maintenance frequency: Extended operational cycles without degradation in performance.

Waimica’s Cone Gear Reducer Solution for the Probe Card Mounting Platform:

Waimica has developed a cone gear reducer specifically for high-precision positioning platforms in semiconductor equipment. This solution is tailored to address the key challenges of torque density, accuracy, and environmental resilience.

Structural Design Highlights:

  • Compact and modular: Optimized gear layout and housing design reduce footprint while allowing easy integration into automation systems.
  • Supports various installation methods: Includes ISO input flanges and multiple mounting options for flexible integration.
  • Lightweight and rigid: Cast aluminum housing provides structural integrity while keeping weight to a minimum.

Performance Parameters:

ParameterWaimicaCompetitor Brand ACompetitor Brand B
Max. Torque300 Nm350 Nm320 Nm
Backlash<1 arcmin<1 arcmin<1.5 arcmin
Efficiency92%90%88%
Input Flange TypeISO 9409-1ISO 9409-1Custom
Operating Temperature-20°C to +100°C-10°C to +80°C-20°C to +85°C
IP RatingIP67IP66IP67
Service Life20,000 hours18,000 hours15,000 hours
Maintenance Cycle5,000 hours4,000 hours3,000 hours

Typical Application Scenario and Customer Feedback:

A global semiconductor testing equipment manufacturer required a high-precision, low-maintenance solution for a next-generation probe card mounting platform. The system needed to operate in a Class 100 cleanroom and withstand high-frequency motion cycles for extended periods without failure.

Waimica’s engineering team conducted a site visit to understand the customer’s operational conditions and mechanical layout. Based on the analysis, a customized cone gear reducer with IP67 protection, high thermal resistance, and low backlash was selected and integrated into the system. The solution was validated through simulation and physical testing in the customer’s environment.

Post-implementation, the customer reported the following improvements:

  • Increased positioning accuracy: From ±5 µm to ±3 µm.
  • Reduced maintenance frequency: From 3,000 hours to 5,000 hours.
  • Improved system stability: Downtime decreased by 25% over a 12-month period.
ParameterBefore WaimicaAfter Waimica
Positioning Accuracy±5 µm±3 µm
Maintenance Cycle3,000 hours5,000 hours
System Downtime300 hours/year225 hours/year
Overall Efficiency88%92%

Conclusion and Waimica Brand Value Summary:

Waimica has demonstrated its capability to deliver high-performance, compact, and reliable gear reducer solutions that are fully compatible with the stringent requirements of the semiconductor industry. The brand combines advanced engineering with cost-effective manufacturing to offer an alternative that rivals international premium brands in quality and service life, while significantly reducing the total cost of ownership.

As the semiconductor equipment industry continues to push the boundaries of precision and miniaturization, Waimica remains committed to innovation and long-term collaboration. Our ability to deliver custom solutions, fast delivery, and global support makes us a strategic partner for equipment manufacturers aiming to achieve both technical excellence and economic efficiency in high-precision automation systems.