摘要:
A device manufacturing method is disclosed. The method includes patterning a beam of radiation, projecting the patterned beam of radiation onto a plurality of outer target portions of a substrate in a sequence in which each subsequent outer target portion is spaced-apart from a preceding outer target portion, and subsequent to projecting the patterned beam of radiation on the plurality of outer target portions, projecting the patterned beam of radiation onto an inner target portion of the substrate.
摘要:
An immersion lithographic apparatus includes a cleaning system for cleaning a component in the immersion lithographic apparatus in situ. The cleaning system is arranged to provide a cleaning environment in proximity of a predetermined position on a component to be cleaned. The system is also arranged to provide the cleaning environment substantially independent of a type of contamination present at the predetermined position.
摘要:
A substrate support constructed to support a substrate for immersion lithographic processing is disclosed. The substrate support has a central part and a peripheral part, the peripheral part comprising an extraction duct configured to extract a liquid from a top surface of the substrate support, the extraction duct connected to an exit duct configured to duct the liquid away from the substrate support. The substrate support further includes a thermal stabilizer, arranged in the peripheral part, configured to thermally stabilize a central part of the substrate support relative to the peripheral part.
摘要:
A lithographic apparatus is disclosed. The apparatus includes an illumination system arranged to condition a radiation beam, and an article support configured to support an article to be placed in a beam path of the radiation beam. The article support includes a plurality of bonded layers. At least one of the bonded layers includes a plurality of recesses facing another of the bonded layers, so as to reduce a bonding surface between the bonded layers.
摘要:
A lithographic apparatus includes a system to compensate for the effect of thermal distortion of the substrate table on position measurements of the substrate table using lateral mirrors in the substrate table. Methods of calibrating a lithographic apparatus using various substrate table scan trajectories and measurements of the localized position and rotation of lateral mirrors in the substrate table are presented. A dual stage lithographic apparatus with alignment marks defining the geometry of a lateral mirror used only at the exposure station to measure the geometry of the lateral mirror when the substrate table is at the measurement station.
摘要:
Systems and methods eliminate vibrations produced by coolant fluid flowing through a short stroke stage and prevent change in thermally-induced distortion of the short stroke stage by maintaining the temperature and temperature distribution within the short stroke stage constant regardless of actinic heat load incident on a reticle. This is done by: (1) conducting heat through the reticle and short stroke stage components, (2) radiatively transferring heat from the short stroke stage to a long stroke stage, and (3) using convection and a cooling system to dissipate heat from the long stroke stage. The short stroke stage can be magnetically levitated from the long stroke stage. This way there is no physical contact, but the long stroke stage's movements can still control the short stroke stage's movements. By not physically contacting the long stroke stage, the short stroke stage is not affected by vibrations in the long stroke stage caused by the flowing coolant.
摘要:
A lithographic apparatus includes an illumination system for providing a beam of radiation, an article support for supporting a flat article to be placed in a beam path of the beam of radiation on the article support, an electrostatic clamp for clamping the article against the article support by an electrostatic field during projection, and a recessed backfill gas feed arranged in the article support for feeding backfill gas to a backside of the article when supported by the article support. According to one aspect of the invention, the recessed backfill gas feed includes a shielding layer for shielding the backfill gas in the recessed backfill gas feed from the electrostatic field.
摘要:
A lithographic apparatus is disclosed. The apparatus includes an illumination system arranged to provide a radiation beam, an article support configured to support an article to be placed in a beam path of the radiation beam, a multipolar clamp configured to provide a clamping pressure for clamping the article against the article support, and a bias voltage circuit for biasing at least one electrode of the multipolar clamp, such that the occurrence of ridges that appear due to static charges on the article may be circumvented.
摘要:
A lithographic apparatus is disclosed. The apparatus includes an illumination system to provide a beam of radiation, an article support to support an article to be placed in a beam path of the beam of radiation, and a clamp to clamp the article to the article support. The clamp is provided with a plurality of zones located around a circumference of the article support to create a locally adjusted pressure so as to provide a local bending moment to locally bend the article.
摘要:
An immersion lithographic apparatus is disclosed in which at least a part of the liquid supply system (which provides liquid between the projection system and the substrate) is moveable in a plane substantially parallel to a top surface of the substrate during scanning. The part is moved to reduce the relative velocity between that part and the substrate so that the speed at which the substrate may be moved relative to the projection system may be increased.