Applied Materials / Semitool LT502 Robot Computer Galil

The Applied Materials/Semitool LT502 Robot Computer is a PC104-based motion control system engineered for precision automation in semiconductor manufacturing. Featuring integrated Galil motion control technology, it manages complex robotic operations across multiple axes with high-speed fiber optic communication and extensive I/O connectivity.

## Technical Specifications

**Bus Architecture & Connectivity**
• PC104 bus interface for modular expansion
• 820 nm ST fiber optic port (TX/RX)
• Six 50-pin ribbon cable connectors

**Motion Control**
• Up to 7-axis control capability with configured PC104 boards
• Galil motion control integration

**Motion Control Features**
• Point-to-point positioning
• Position tracking
• Jogging
• Linear and circular interpolation
• Contouring
• Electronic gearing
• ECAM (Electronic Camming)
• PID compensation with velocity and acceleration feedforward
• Multitasking for concurrent program execution

**Form Factor**
Card-level controller designed for system integration.

## Key Features

The LT502 leverages Galil’s motion control architecture to deliver cost-effective, high-performance axis management. The PC104 bus provides a standardized platform for adding specialized processing or I/O modules tailored to specific manufacturing tasks. Fiber optic communication at 820 nm enables high-speed, noise-immune data transmission in electromagnetically challenging fab environments. Multiple ribbon cable connectors support direct sensor and actuator integration without external breakout boards.

## Typical Applications

• Wafer handling and transport automation
• Precision robotic positioning in semiconductor processes
• Multi-axis material handling systems
• Synchronized motion control in processing equipment

## Compatibility & Integration

The LT502 operates within the PC104 ecosystem, allowing integration with compatible expansion boards to expand axis count and I/O capability. System designers can configure axis control from 1 to 7 axes depending on board composition. The fiber optic interface isolates the controller from ground loops and RF interference common in semiconductor fabs.