ETEL 613712-05 4-Axis Control Assembly – STG CTRL for ROCK COMET
The ETEL 613712-05 is a sophisticated 4-axis control assembly designed for advanced motion control systems, often deployed in the ROCK COMET platform. This assembly, also referred to as STG CTRL ASSY, integrates ETEL’s DSCDL (Digital Servo Controller Dual Loop) and DSMAX2 technologies to provide synchronized, high-precision motion management for up to four axes simultaneously. It is specifically engineered to meet the stringent demands of semiconductor wafer inspection and other high-precision metrology applications.
This control assembly serves as the central motion brain, processing high-resolution feedback from multiple encoders and executing complex, coordinated motion profiles. Its architecture is optimized for low latency and deterministic cycle times, ensuring that all four axes move in perfect harmony, which is critical for scanning and stepping operations where inter-axis alignment must be maintained within nanometers.
Key Features
4-Axis Synchronization: Provides precise coordination of four motion axes with distributed clock synchronization.
DSCDL Integration: Dual-loop control capabilities allow for enhanced performance using both linear and rotary encoders.
DSMAX2 Technology: Delivers advanced current loop performance and high-speed data streaming for real-time diagnostics.
High-Speed Feedback: Supports ultra-high-resolution encoders for nanometer-level positioning.
Robust Communication: High-speed backplane and EtherCAT connectivity ensure seamless data exchange with host systems.
Technical Specifications
The assembly operates from a standard 24 VDC logic supply and interfaces with power stages via a high-speed digital link. It supports up to 4 axes of motion, with each axis capable of independent control loops updated at rates up to 8 kHz. The unit includes extensive diagnostic memory for logging motion events, faults, and performance metrics. Its compact form factor is designed for integration into the standard ROCK COMET chassis, with standardized connectors for quick deployment.
Applications
Wafer Inspection: High-speed scanning of semiconductor wafers for defect detection.
Mask Alignment: Precise positioning of photomasks in lithography systems.
Metrology Tools: Coordinate measurement and surface profiling equipment.
Advanced Packaging: Die placement and wire bonding with multiple active axes.
Integration and Configuration
The 613712-05 assembly is pre-configured for the ROCK COMET environment, significantly reducing integration time. ETEL provides firmware and software libraries that enable seamless communication with the host controller. Configuration parameters, such as axis limits, gear ratios, and safety settings, are stored in non-volatile memory on the assembly, allowing for quick setup and recovery in case of component replacement.
Benefits
Superior Accuracy: Multi-axis synchronization ensures consistent overlay and registration.
High Throughput: Fast control loops minimize settling time, increasing inspection speed.
System Stability: Advanced filtering and dual-loop control suppress mechanical resonances.
Simplified Cabling: Integrated design reduces the number of external connections required.
Conclusion
The ETEL 613712-05 4-axis control assembly is a powerful and specialized motion control solution for the most demanding precision applications. By combining DSCDL, DSMAX2, and a robust hardware platform, it delivers the performance and reliability required to maximize the capabilities of ROCK COMET and similar advanced automation platforms.
