ASML End Effector 4022.651.46362 (FSD) & RH Robot Gripper 4022.637.33284
This product set comprises the ASML end effector (part 4022.651.46362, designated FSD) and the right‑hand (RH) robot gripper assembly (4022.637.33284, also referenced as SEM‑I‑1597=WA5). These components are critical for automated wafer transfer within ASML lithography tools, ensuring gentle, contamination‑free handling of 300mm wafers.
End Effector (4022.651.46362) Details
The end effector is a fork‑shaped ceramic (Al₂O₃) component with integrated vacuum channels and edge‑grip features. It is designed to support a wafer from beneath while minimizing contact area to reduce particle generation. The FSD (Fork Sensor Device) includes embedded fiber‑optic sensors that detect wafer presence and edge position with ±0.1 mm accuracy.
RH Robot Gripper (4022.637.33284) Details
The gripper assembly attaches to the robot arm and provides both vertical and lateral clamping forces. It uses four independently actuated fingers with soft‑tip PEEK pads to securely hold the wafer during transport. The SEM‑I‑1597=WA5 configuration includes a force‑sensing resistor (FSR) array that monitors grip force in real time, preventing slippage or excessive pressure.
Mechanical Specifications
End effector length: 320mm, width: 85mm, thickness: 4mm
Gripper stroke: 0‑15 mm (adjustable via set screws)
Maximum wafer weight: 200 g (for 300mm Si)
Operating vacuum: ‑80 kPa (nominal)
Material: high‑purity alumina, PEEK, and 316L stainless steel
Sensor Integration
The end effector includes two through‑beam optical sensors (emitter/receiver) to detect wafer edge at two positions. The gripper has four capacitive proximity sensors (for finger position) and one load cell per finger for force feedback. All sensor signals are routed through a 34‑pin flex cable to the robot controller.
Dynamic Performance
Designed for acceleration up to 5 m/s² and speeds of 2 m/s, with settling time < 50 ms after a pick/place move. The gripper's finger closure time is < 100 ms. The assembly is balanced to minimize inertial effects on the robot arm.
Compatibility and Replacement
This set is compatible with ASML's TwinScan and PAS series wafer handlers. It replaces older end effector 4022.651.46358 and gripper 4022.637.33280. The SEM‑I‑1597=WA5 designation indicates a specific vacuum fitting orientation (side‑entry).
Installation and Alignment
Installation requires precise alignment of the end effector to the robot tool flange using a dial indicator (runout<0.05 mm). The gripper fingers must be calibrated to the wafer diameter using a dedicated setup wafer. Follow the torque specifications for all fasteners (M3 screws at 0.8 Nm).
Cleaning and Maintenance
Clean the ceramic fork with isopropyl alcohol and lint‑free wipes weekly. Inspect the PEEK pads for wear every 10,000 cycles; replace if thickness is<1.5 mm. Vacuum port filters should be changed every 3 months.
Safety and Reliability
The gripper includes a failsafe spring that keeps fingers closed if air pressure is lost. The end effector is rated for 1 million cycles with minimal wear. All materials are certified for cleanroom use (outgassing compliant per ASTM E595).
Conclusion
The ASML end effector and RH robot gripper combination ensures reliable, high‑throughput wafer handling with minimal defect risk, forming an essential part of the automated lithography process.
