Abstract:
PROBLEM TO BE SOLVED: To provide an imprint lithography unit capable of performing highly precise alignment between continuous layers. SOLUTION: This imprint lithography unit has a substrate table to hold a substrate, template holder to hold an imprint template, and an alignment sensor. It also has a template alignment mark where in an imprint position alignment mark is formed by imprinting the imprint template or the template or the template holder on the substrate table on the substrate. The imprint template has functional patterns. The template alignment mark and the functional patterns have known space relationships. The alignment sensor determines the position of the imprint alignment mark. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A method of generating radiation for a lithography apparatus. The method comprises providing a continuously renewing fuel target at a plasma formation location and directing a continuous-wave excitation beam at the plasma formation location such that fuel within the continuously renewing fuel target is excited by the continuous-wave excitation beam to generate a radiation generating plasma.
Abstract:
A method of patterning lithographic substrates, the method comprising using a free electron laser (FEL) to generate EUV radiation and delivering the EUV radiation to a lithographic apparatus (LA) which projects the EUV radiation onto lithographic substrates, wherein the method further comprises reducing fluctuations in the power of EUV radiation delivered to the lithographic substrates by using a feedback-based control loop (CT) to monitor the free electron laser and adjust operation of the free electron laser accordingly.
Abstract:
An arrangement for use in a projection exposure tool (100) for microlithography comprises a reflective optical element (10; 110) and a radiation detector (30; 32; 130). The reflective optical element (10; 110) comprises a carrier element (12) guaranteeing the mechanical strength of the optical element (10; 110) and a reflective coating (18) disposed on the carrier element (12) for reflecting a use radiation (20a). The carrier element (12) is made of a material which upon interaction with the use radiation (20a) emits a secondary radiation (24) the wavelength of which differs from the wavelength of the use radiation (20a), and the radiation detector (30; 32; 130) is configured to detect the secondary radiation (24).
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 system has a lithographic apparatus, an inspection system and a controller. The lithographic apparatus includes a projection system configured to project a radiation beam onto a layer of material on or above a substrate. The inspection system is configured to inspect a pattern formed on the substrate. The pattern is formed on the substrate by application of the radiation beam. The controller is configured to control the lithographic apparatus to form a pattern based on data from an inspection by the inspection system of a previously exposed pattern.
Abstract:
A delivery system for use within a lithographic system. The beam delivery system comprises optical elements arranged to receive a radiation beam from a radiation source and to reflect portions of radiation along one or more directions to form a one or more branch radiation beams for provision to one or more tools.
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.