Abstract:
A method of loading a flexible substrate (38), a device manufacturing method, an apparatus for loading a flexible substrate, and a lithography apparatus. According to an embodiment, there is provided a method of loading a flexible substrate onto a support (42) for use in an exposure apparatus, including transferring the substrate progressively from a substrate carrier (40) to the support in a way that a boundary line (45) separating a region of the substrate that is loaded onto the support and a region of the substrate that is not yet loaded onto the support remains substantially straight during the loading process.
Abstract:
A lithographic apparatus component, such as a metrology system or an optical element (e.g., a mirror) is provided with a temperature control system for controlling deformation of the component. The control system includes channels provided close to a surface of the component through which a two phase cooling medium is supplied. The metrology system measures a position of at least a moveable item with respect to a reference position and includes a metrology frame connected to the reference position. An encoder is connected to the moveable item and constructed and arranged to measure a relative position of the encoder with respect to a reference grid. The reference grid may be provided directly on a surface of the metrology frame. A lithographic projection apparatus may have the metrology system for measuring a position of the substrate table with respect to the projection system.
Abstract:
Disclosed is a system configured to project a beam of radiation onto a target portion of a substrate within a lithographic apparatus. The system comprises a mirror (510) having an actuator (500) for positioning the mirror and/or configuring the shape of the mirror, the actuator also providing active damping to the mirror, and a controller (515a, 515b) for generating actuator control signals for control of said actuator(s). A first coordinate system is used for control of said actuator(s) when positioning said mirror and/or configuring the shape of said mirror and a second coordinate system is used for control of said actuator(s) when providing active damping to said mirror.
Abstract:
An apparatus configured to handle an object in a contactless manner, the apparatus includes a carrying body having a carrying surface which is configured to be directed towards the object, the carrying surface being provided with a plurality of traction members and a plurality of overpressure members, each overpressure member being provided with at least one exhaust opening, each traction member being provided with an indentation and at least two suction openings that are arranged in the indentation, the at least two suction openings of each traction member being configured to generate a pressure gradient between them so as to create a traction fluid flow in the indentation in a direction substantially parallel to the carrying surface; and a pressure controller configured to control the pressure gradient between the at least two suction openings of each traction member.
Abstract:
Disclosed is a system configured to project a beam of radiation onto a target portion of a substrate within a lithographic apparatus. The system includes a radiation source. The radiation source includes a grating structure operable to suppress the zeroth order of reflected radiation for at least a first component wavelength. The grating structure has a periodic profile including regularly spaced structures providing three surface levels, such that radiation diffracted by the grating structure includes radiation of three phases which destructively interfere for at least the zeroth order of the reflected radiation for the first component wavelength. The grating structure is on a radiation collector within the source.
Abstract:
A projection system, configured to project a radiation beam onto a target, includes a rotatable frame configured to rotate about an axis defining a tangential direction and a radial direction, wherein the rotatable frame holds a lens configured to focus the radiation beam in only the tangential or radial direction; and a stationary part comprising a substantially stationary lens configured to focus the radiation beam in only the other of the tangential or radial direction.