Allient showcases precision motion technologies at SEMICON West 2026

Allient Inc. will present its advanced portfolio of precision motion, control, and power technologies at SEMICON West 2026 (October 13–15, Moscone Center, San Francisco, Booth #5683). The exhibition focuses on component-level solutions and integrated motion stages designed specifically for the extreme precision requirements of semiconductor fabrication, automated wafer handling, and high-resolution inspection equipment.

Precision motion stages and integrated kinematics
A central highlight of the showcase is the integration of complex kinematics for semiconductor inspection. The company will demonstrate its ThruSight-Theta stage mounted on an open-center XY stage. This configuration combines highly accurate, continuous rotary motion with precise XY positioning while maintaining a clear aperture. This open-center design allows optical light sources to pass directly through the mechanical assembly, making it highly suitable for metrology, defect inspection, and specialized wafer processing applications. Other mechanical configurations on display include the ThruSight Focus, asymmetric XY stages, and a hybrid hexapod designed for multi-axis spatial alignment.

Frameless motors, linear actuators, and servo drives
Beyond integrated stages, Allient will exhibit its extensive range of bare motor components designed for direct, low-profile integration into capital equipment. The frameless motor portfolio features the TG and LS Series of slotless, inner-rotor brushless kits, alongside SA Series axial flux motors tailored for applications with severe height constraints. For high-torque demands in advanced robotics, the MegaFlux and ElectroFlux direct-drive series offer robust rotational control. In linear motion, the P-Series and C-Series ironless linear motors provide high-force and ultra-compact form factors, which operate seamlessly when paired with the company's Pyxmos Module servo drive for precise closed-loop positioning.

Additional Context: Ironless linear motors and optical metrology
In semiconductor manufacturing, nanometer-level precision is mandatory for photolithography, wafer probing, and optical metrology. Traditional rotary and linear motors often suffer from "cogging"—a micro-stuttering motion caused by the magnetic attraction between the permanent magnets and the iron teeth of the stator. Ironless linear motors completely eliminate this iron core, eradicating cogging and enabling exceptionally smooth, high-velocity motion with zero mechanical backlash. When combined with open-center rotary stages (clear apertures), these ironless systems allow engineers to position 300mm wafers directly in the optical path of high-resolution inspection cameras or lasers. This frictionless, vibration-free positioning is critical for detecting sub-micron defects on densely packed semiconductor nodes without disrupting the focal plane.

Edited by Lekshman Ramdas, InduPortals editor – adapted by AI.

www.allient.com