Wafer Stages for Thin Film Metrology and Glass Substrate Inspection

Configurable, granite-based wafer-stage sub-system, new from PI.

Auburn, MA - PI, a global leader in nanopositioning and motion control, is offering granite-based multi-axis precision motion systems for the automation of wafer metrology, glass substrate inspection and lithography applications. These highly accurate stages are based on modular concepts that allow fast customizations. Several technologies are available including air bearings, rails-on-granite, and several types of piezo drive systems. Large travel ranges of one meter and more can be achieved with a variety of different configurations. The XYZ-Theta example stage shown is designed for thin film metrology equipped with direct drive motors, nanometer resolution encoders, and high-performance ACS motion controllers.


PI's advanced design expertise and long experience as a supplier to top tier semiconductor manufacturers and leading system integrators enables us to understand and meet the high demands of the industry, including copy exactly and meeting strict cleanroom requirements.

Industries Served
Semiconductors, photonics, optics, automation, metrology

Featured Product

PickerPal Products provides full case pick module protection to protect employees from falls.

PickerPal Products provides full case pick module protection to protect employees from falls.

PickerPal has two independent, spring-loaded arms that are self closing, which is preferred by OSHA. 3 arms are used when a kick plate is required. OSHA states that when an employee is within 4' of the edge, the area changes from a pallet position to a, "walking/working surface," which requires a kick plate or a third arm. The spring-loaded arms open on contact with the loaded skid and close on their own as products are off-loaded. This design provides multiple benefits: • Top arms close as product is removed, creating a safety gate, and the third arm closes when the empty pallet is removed. • Empty pallet positions are no longer a safety hazard. • Each are is easily replaced without removing the entire assembly.