[P-725.xCDE2 Focus Scanner for Semiconductor Inspection]

High-precision Z-focus scanner for semiconductor inspection equipment with sub-nanometer resolution and maximum 800 µm stroke capability.

In semiconductor inspection equipment, high-resolution Z-axis position control and rapid step motion are required for detecting fine defects and evaluating 3D focus. The P-725.xCDE2 PIFOC focus scanner is a high-precision actuator that achieves sub-nanometer resolution with a maximum focus range of 800 µm. By combining the PICMA piezo actuator with a flexure guide mechanism that incorporates capacitive sensors, high linearity, reproducibility, and stability are realized. This enables high-precision control of Z focus and high-speed scanning in semiconductor inspection, contributing to improved accuracy in the inspection process and enhanced throughput of the equipment. [Application Scenarios] - Z focus control for wafer surface defect inspection - High-resolution imaging in chip and package inspection - High-speed Z scanning in optical and laser-based inspection equipment - Defect analysis using optical inspection and confocal optical microscopy [Benefits of Implementation] - Improved measurement accuracy through high-precision focus control - Enhanced inspection throughput due to rapid Z step motion - Increased reliability of the equipment with stable long-term operation

Piezoelectric DevicesActuatorOther machine elements