An optical system for lithography apparatus comprises a movable element and a functional element having a first and second portions. The optical element is designed as an optical element or as a reference structure. The first portion is fastened to the movable element by a joining mechanism along a fastening plane. The second portion comprises a functional surface. The functional element comprises a decoupling device for decoupling by deformation the first portion from the second portion. The decoupling device is formed by a narrowing of the functional element. The narrowing is located laterally outside a region of the functional surface. The functional surface is a measurement surface which is suitable for acquisition for the purposes of positioning and/or orientating the movable element.

A system and method for shaping a film on a partial field including determining an initial contact point. Receiving information about: a partial field of a substrate; and an edge of a patternable area of the substrate. Determining a chord that connects intersection vertices of the partial field and the edge. Determining coordinates of a bisecting line, wherein the bisecting line bisects the chord, and the bisecting line is orthogonal to the chord. Determining an initial contact point range on the bisecting line in which a template and formable material on the substrate contact each other. Contacting the formable material in the partial field on the substrate with the template at an initial contact point within the initial contact point range.

An imprint lithography apparatus having a first frame to be mounted on a floor, a second frame mounted on the first frame via a kinematic coupling, an alignment sensor mounted on the second frame, to align an imprint lithography template arrangement with a target portion of a substrate, and a position sensor to measure a position of the imprint lithography template arrangement and/or a substrate stage relative to the second frame.

The present disclosure relates to apparatus and methods for performing maskless lithography processes. A substrate rocessing apparatus includes a slab with a plurality of guiderails coupled to and extending along the slab. A first shuttle is disposed on the plurality of guiderails, a second shuttle is disposed on the first shuttle, and a metrology bar is coupled to the second shuttle. The etrology bar includes a first plurality of sensors coupled to the metrology bar. A second plurality of sensors coupled to the metrology bar are disposed laterally inward of the first plurality of sensors.

A system includes an illumination system, an optical element, a switching element and a detector. The illumination system includes a broadband light source that generates a beam of radiation. The dispersive optical element receives the beam of radiation and generates a plurality of light beams having a narrower bandwidth than the broadband light source. The optical switch receives the plurality of light 5 beams and transmits each one of the plurality of light beams to a respective one of a plurality of alignment sensor of a sensor array. The detector receives radiation returning from the sensor array and to generate a measurement signal based on the received radiation.

An extreme ultraviolet light (EUV) source apparatus includes a light source part for generating a plasma that emits EUV light; a first vacuum housing in which the light source part is located; a second vacuum housing arranged between the first vacuum housing and a utilizing apparatus in which the EUV light is utilized; and a debris trap located inside the second vacuum housing for deflecting debris particles emitted from the plasma, whereby the debris particles do not ingress into the utilizing apparatus. Between the first and second vacuum housings, there is provided a window through which the EUV light emitted from the light source part passes from the first vacuum housing to the second vacuum housing. A wall of the second vacuum housing has a through-hole and a window that is configured to allow the EUV light to pass from the second vacuum housing to the utilizing apparatus.

The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes a support unit configured to rotate and support a substrate; a liquid supply unit configured to supply a liquid to the substrate supported on the support unit; and an optical module for heating the substrate supported on the support unit, and wherein the support unit includes a teaching member having a grid displaying a reference point which matches a center of the support unit.

An extreme ultraviolet (EUV) photolithography system detects debris travelling from an EUV generation chamber to a scanner. The photolithography system includes a detection light source and a sensor. The detection light source outputs a detection light across a path of travel of debris particles from the EUV generation chamber. The sensor senses debris particles by detecting interaction of the debris particles with the detection light.

A stage apparatus includes a surface plate as well as a guide shaft fixedly secured to the surface plate, a drive member moving along the guide shaft, and a hydrostatic fluid bearing that forms fluid films in the gap portion between the guide shaft and the drive member. The apparatus further includes: a positional deviation detection section—for detecting a relative positional deviation which occurs between the guide shaft and the drive member and which affects the thickness dimensions of the fluid films; and a state decision section for making a decision on the condition of the apparatus itself based on the positional deviation detected by the detection section and outputting information responsive to the decision.

An acoustic scatterometer has an acoustic source operable to project acoustic radiation onto a periodic structure and formed on a substrate. An acoustic detector is operable to detect the −1st acoustic diffraction order diffracted by the periodic structure and while discriminating from specular reflection (0th order). Another acoustic detector is operable to detect the +1st acoustic diffraction order diffracted by the periodic structure, again while discriminating from the specular reflection (0th order). The acoustic source and acoustic detector may be piezo transducers. The angle of incidence of the projected acoustic radiation and location of the detectors and are arranged with respect to the periodic structure and such that the detection of the −1st and +1st acoustic diffraction orders and discriminates from the 0th order specular reflection.