Waimica’s Precision Gearbox Solution for Semiconductor Packaging Dispensing Rotating Platforms

As the demand for miniaturized, high-performance semiconductor components continues to rise, the packaging and dispensing processes have become critical to the industry’s success. A dispensing rotating platform, used to precisely apply adhesive or encapsulant materials during wafer or chip packaging, requires a highly reliable and accurate transmission system. In this case study, we explore the challenges in this sector, the essential role of gearboxes, and how Waimica has provided an advanced solution with strong performance, customization, and cost-efficiency.

The dispensing rotating platform is a core component of semiconductor packaging equipment. It typically integrates with high-precision linear actuators, servomotors, and control systems to ensure the exact positioning and uniformity of adhesive dispensing. With the miniaturization of semiconductor devices and the need for ultra-precision manufacturing, traditional transmission systems are often unable to meet the required performance levels. Key challenges include:

• High Precision Requirements: Micron-level positioning is required to avoid misalignment and defects.
• System Stability: Frequent acceleration/deceleration cycles and high-speed operations place significant stress on the transmission system, leading to potential wear and vibration issues.
• Compact Design: Space limitations in modern packaging equipment demand highly integrated and compact transmission components.
• High Efficiency and Low Energy Consumption: Meeting the green manufacturing trend and reducing operational costs is essential.
• Environmental Compatibility: The platform must operate reliably in cleanrooms and high-temperature environments, requiring specialized materials and sealing solutions.

Gearboxes are the core transmission components of dispensing rotating platforms. The key technical requirements for gearboxes in this application are:

• High Torque Density: To support high-precision motion under heavy loads and maintain a compact footprint.
• High Transmission Accuracy: Must ensure repeatability within microns and minimal backlash.
• Fast Response and Smooth Motion: For high-speed, high-precision dispensing operations with high cycle rates.
• Compatibility with Servo Systems: Must work seamlessly with high-performance servo motors and control systems.
• Environmental Adaptability: Must be suitable for high-temperature and cleanroom environments with high IP protection levels.
• Long Service Life and Low Maintenance: To reduce downtime and maintenance costs in continuous operation scenarios.

Waimica’s planetary gearboxes are specifically designed to meet the demanding requirements of semiconductor packaging dispensing rotating platforms. Our solution addresses the following key areas:

• Compact and Modular Design: Our gearboxes are engineered to provide high performance within a minimal space footprint, supporting quick installation and integration with existing equipment.
• High Torque and Precision: Torque range up to 2,500 Nm, with a backlash of less than 1 arcminute, ensuring high positioning accuracy and repeatability.
• High Efficiency and Energy Conservation: Up to 98% transmission efficiency, reducing heat generation and energy costs.
• High IP Rating and Environmental Resistance: Standard IP65 rating, with optional IP67 for harsher environments, and materials that meet cleanroom and high-temperature requirements.
• Standardized Input Flanges and Mounting Configurations: Compatible with major servomotor brands, and support flexible mounting orientations including horizontal and vertical.

A leading semiconductor packaging equipment manufacturer in Asia approached Waimica for a high-precision rotating platform solution to be used in a wafer-level encapsulation process. The customer required a transmission system that could operate at high speeds (200 RPM), maintain sub-micron positioning accuracy, and withstand the high temperatures and cleanroom standards of their production environment.

Our technical team conducted an in-depth analysis of the application scenario, including mechanical load conditions, motor compatibility, and environmental constraints. Based on this, we selected a Waimica high-torque planetary gearbox model and recommended a customized lubrication system and heat dissipation solution to ensure long-term stability and performance.

After deployment, the customer reported the following improvements:

The customer praised the smooth integration of the Waimica gearbox into their existing control system and highlighted the significant improvement in system reliability and process stability. This has allowed them to reduce production downtime and improve product yield, directly contributing to their competitiveness in the market.

Waimica has demonstrated its ability to deliver high-performance, high-reliability gearbox solutions for semiconductor packaging dispensing rotating platforms. Our engineering team is equipped to provide tailored design, fast delivery, and full support from specification to installation. Waimica offers a compelling alternative to traditional international brands by combining high-quality design with a competitive price point and strong after-sales service.

With the semiconductor industry increasingly driven by automation and precision, Waimica is positioned to be a key partner for OEMs and system integrators. Our commitment to innovation, compliance with international standards, and proven track record in delivering reliable motion control solutions confirm our value proposition as a trusted provider of industrial automation components.