XYZT Gantry Motion Stage for Wafer Inspection

Our XYZT Gantry Motion Stage for Wafer Inspection integrates high-rigidity granite bases, air bearing guides, linear motor drives, and precision optical encoders to achieve ±1µm positioning accuracy and ±0.1µm repeatability. Designed for 24/7 operation in cleanroom environments (Class 100/Class 10), our gantry stages feature ultra-low vibration, high dynamic response (500mm/s max velocity), and thermal stability to ensure reliable wafer defect detection and dimensional metrology across the entire production lifecycle.

● Custom XYZT Gantry Motion Stage for Wafer Inspection engineered to your wafer inspection equipment specifications and CAD drawings

● ±1µm positioning accuracy with nanometer-level repeatability (±0.1µm) for critical wafer measurements

● Air bearing technology for frictionless motion and zero particle generation in cleanroom environments

● Thermally stabilized design with active temperature control (±0.01°C) for ultra-high precision

● ISO 9001:2015 certified manufacturing with full traceability for semiconductor industry compliance

Key Features & Core Advantages

High-Rigidity Mechanical Design

Our XYZT Gantry Motion Stage for Wafer Inspection features monolithic granite bases (thermal expansion coefficient < 0.5 × 10⁻⁶/°C) and carbon fiber reinforced polymer (CFRP) gantry beams for exceptional structural rigidity and minimal thermal deformation. The symmetric gantry design eliminates Abbe error and ensures uniform load distribution across the entire wafer inspection area.

Precision Motion Control System

Integrated with high-performance linear motor drives (zero backlash, high acceleration) and absolute optical encoders (1nm resolution), our XYZT gantry stages deliver smooth, precise motion with sub-micron accuracy. The advanced servo control algorithm compensates for dynamic errors and ensures nanometer-level positioning stability during wafer scanning operations.

Cleanroom-Ready Design

Every XYZT Gantry Motion Stage for Wafer Inspection is engineered for Class 100/Class 10 cleanroom operation with vacuum-compatible components, sealed linear guides, and low-outgassing materials (compliant with SEMI S2-0701). The air bearing technology eliminates particle generation, while the enclosed cable management system prevents contamination during high-speed wafer inspection cycles.

Technical Specifications

Mechanical Specifications

Base Material: Black granite (00级) / CFRP composite

Guide System: Precision air bearings / linear roller guides

Drive System: Brushless linear motors / servo motors with ball screws

Feedback: Absolute optical encoders (1nm resolution)

Environmental Specifications

● Operating Temperature: 20±0.5°C (active thermal control)

● Cleanroom Rating: Class 100 (ISO Class 5) / Class 10 (ISO Class 4)

● Vibration Isolation: Active/passive vibration control system

● Power Supply: 200-240V AC, 50/60Hz, 1-phase/3-phase

Applications

● High-speed scanning of 200mm/300mm/450mm wafers for particle and pattern defects

● Nanometer-level positioning for optical/microscopic defect detection systems

● Dynamic flatness compensation for warped wafer inspection

● Integration with laser scanning and electron microscopy inspection tools

Wafer Metrology

Wafer Dimensional Metrology

● Precision measurement of wafer thickness, bow, and warp parameters

● Sub-micron level alignment for overlay metrology systems

● Thermally stabilized positioning for temperature-sensitive metrology

● Automated in-line metrology for wafer fabrication processes

Wafer Processing

Wafer Processing & Handling

● High-precision alignment for wafer lithography and etching processes

● Cleanroom-compatible wafer handling and transfer systems

● Dynamic positioning for laser dicing and wafer thinning operations

● Integration with robotic wafer handling and automation systems