Abstract:
PROBLEM TO BE SOLVED: To provide a pulse modifier, a related lithographic apparatus, and a device manufacturing method. SOLUTION: The pulse modifier is so configured as to receive the input pulse of radiation and emit a plurality of corresponding output pulse portions of radiation. Each pulse portion is reflected symmetrically about an axis that traverses the optical axis of the pulse portion, as well as, being reflected symmetrically about a point on the optical axis of the pulse portion. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a beam correction apparatus that reduces asymmetrical properties of a radiation beam. SOLUTION: The beam correction apparatus 50 is arranged along a first optical axis, and includes a splitter 10 configured so as to split the incident radiation beam into first and second portions. The splitter is configured so as to guide the first portion along a second optical axis and guide the second portion through a delay path 40. The apparatus further includes an optical element for forming a delay path. The optical element is configured so as to receive the second portion, to guide the second portion through the delay path, and then to guide the second portion along the second optical axis. The optical element is arranged so that the second portion is mirrored with respect to the first portion, thereby mirroring the second portion. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus, an illumination system, and an optical element for rotating an intensity distribution. SOLUTION: A lithography projection apparatus includes an illumination system having a reflection type integrator with rectangular cross section. An optical element for re-distributing an intensity distribution emitted from the reflection type integrator is provided. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide one or more optical attenuator elements that are symmetrical about the center line of a beam and that exist in a central part of the beam. SOLUTION: The attenuator device operates to remove a part of a beam of radiation having a higher than average intensity using at least one optical attenuator element. The device has application in a radiation system, and/or a lithographic apparatus, in particular a scanning lithographic apparatus, wherein the optical attenuator element(s) are provided in a central part of the beam, for example, perpendicularly to a scanning direction. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide lithography equipment capable of quickly converting the beam intensity distribution in the pupil plane surface and a device manufacturing method. SOLUTION: The device manufacturing method of the lithography equipment comprises the steps of: projecting a projection beam PB on a substrate W through a mask MA; controlling direction dependency of beam intensity in the substrate W by passing the beam through a series of optical elements 120 a-b in front of the pupil plane surface 14; determining goniochromatic properties in the substrate W by the intensity distribution which is the function of location in the pupil plane surface; fixing the goniochromatic properties of the intensity of the beam PB by each optical element 120 a-b which is preferable to be an array of a micronic lens (or more concretely, DOE: Diffractive Optical Element), respectively; arranging each optical element 120 a-b in order to pass a major member of the beam PB without real deflection and a minor member having a deflection angle dependent intensity, respectively; and removing the major member of the beam which is cut after it has passed through the optical elements 120 a-b . Consequently, efficacy over intensity in the pupil plane surface 14 is added. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
A radiation system comprising a beam splitting apparatus configured to receive a main radiation beam and split the main radiation beam into a plurality of branch radiation beams and a radiation alteration device arranged to receive an input radiation beam and output a modified radiation beam, wherein the radiation alteration device is configured to provide an output modified radiation beam which has an increased etendue, when compared to the received input radiation beam, wherein the radiation alteration device is arranged such that the input radiation beam which is received by the radiation alteration device is a main radiation beam and the radiation alteration device is configured to provide a modified main radiation beam to the beam splitting apparatus, or wherein the radiation alteration device is arranged such that the input radiation beam which is received by the radiation alteration device is a branch radiation beam output from the beam splitting apparatus.
Abstract:
A lithographic apparatus is provided with a sensor. The sensor comprises a frame that defines a space that is crossed multiple times by wire. Detection electronics are connected to the wire and configured to detect a change of temperature of the wire due to infrared radiation being incident upon the wire. The detection electronics are further configured to provide an output signal in the event that a change of temperature of the wire is detected.
Abstract:
An optical attenuator device operates to remove a part of a beam of radiation having a higher than average intensity using at least one optical attenuator element (4). The device has application in a radiation system, and/or a lithographic apparatus, in particular a scanning lithographic apparatus, wherein the optical attenuator element(s) are provided in a central part of the beam, for example perpendicularly to a scanning direction.
Abstract:
A lithographic projection apparatus includes an illumination system having a reflective integrator with a rectangular cross-section. An optical element is provided to redistribute an intensity distribution exiting the reflective integrator.
Abstract:
An optical attenuator device operates to remove a part of a beam of radiation having a higher than average intensity using at least one optical attenuator element (4). The device has application in a radiation system, and/or a lithographic apparatus, in particular a scanning lithographic apparatus, wherein the optical attenuator element(s) are provided in a central part of the beam, for example perpendicularly to a scanning direction.