摘要:
A lithographic apparatus includes a position controller configured to control a position of a patterning device in its planar direction by selectively pressing at least one of the side faces of the patterning device. The position controller includes a gas pressure supply and one or more outflow openings directed towards at least one side face of the patterning device so as to exert pressurized gas on this side face in order to control the position of the patterning device in its planar direction in a contactless manner.
摘要:
A lithographic apparatus includes a position controller configured to control a position of a patterning device in its planar direction by selectively pressing at least one of the side faces of the patterning device. The position controller includes a gas pressure supply and one or more outflow openings directed towards at least one side face of the patterning device so as to exert pressurized gas on this side face in order to control the position of the patterning device in its planar direction in a contactless manner.
摘要:
A lithographic apparatus includes a projection system, a substrate table, a plurality of sensors, an actuator and a controller. The projection system is configured to project a patterned beam of radiation onto a substrate. The substrate table is configured to support the substrate and to move relative to the projection system. The plurality of sensors is configured to measure a deformation of the substrate table. The actuator is configured to deform the substrate table. The controller is configured to control the actuator to deform the substrate table based on measurements made by the sensors. The plurality of sensors is located on a first side of the substrate table opposite to a second side of the substrate table facing the projection system. The plurality of sensors is substantially stationary relative to the projection system.
摘要:
A lithographic apparatus includes a projection system, a substrate table, a plurality of sensors, an actuator and a controller. The projection system is configured to project a patterned beam of radiation onto a substrate. The substrate table is configured to support the substrate and to move relative to the projection system. The plurality of sensors is configured to measure a deformation of the substrate table. The actuator is configured to deform the substrate table. The controller is configured to control the actuator to deform the substrate table based on measurements made by the sensors. The plurality of sensors is located on a first side of the substrate table opposite to a second side of the substrate table facing the projection system. The plurality of sensors is substantially stationary relative to the projection system.
摘要:
An imprint lithography apparatus is disclosed that includes a structure located away from a substrate holder and extending across the substrate holder, and such that an imprint template arrangement is, in use, located between the structure and the substrate holder, wherein the structure has one or more arrays of lines or one or more encoders, and the substrate or substrate holder and the imprint template have a corresponding one or more encoders that face towards one or more of the one or more arrays of lines or one or more arrays of lines that face towards one or more of the one or more encoders, and the configuration determination arrangement is configured to determine a relative configuration between the substrate or substrate holder and the structure, and/or a relative configuration between the imprint template arrangement and the structure, and/or a relative configuration between the imprint template arrangement and the substrate or substrate holder.
摘要:
An imprint lithography apparatus is disclosed that includes a structure located away from a substrate holder and extending across the substrate holder, and such that an imprint template arrangement is, in use, located between the structure and the substrate holder, wherein the structure has one or more arrays of lines or one or more encoders, and the substrate or substrate holder and the imprint template have a corresponding one or more encoders that face towards one or more of the one or more arrays of lines or one or more arrays of lines that face towards one or more of the one or more encoders, and the configuration determination arrangement is configured to determine a relative configuration between the substrate or substrate holder and the structure, and/or a relative configuration between the imprint template arrangement and the structure, and/or a relative configuration between the imprint template arrangement and the substrate or substrate holder.
摘要:
A lithographic apparatus is provided with an optical encoder measurement system having an irradiation system to direct an irradiation beam to a first scale. The system has optics to direct a primary diffracted beam diffracted from the first scale upon irradiation by the irradiation beam to a second scale and a detector to detect a secondary diffracted beam after interference and a second diffraction of the primary diffracted irradiation beam on the second scale to measure the position of the first scale with respect to the second scale.
摘要:
A lithographic apparatus is provided with an optical encoder measurement system having an irradiation system to direct an irradiation beam to a first scale. The system has optics to direct a primary diffracted beam diffracted from the first scale upon irradiation by the irradiation beam to a second scale and a detector to detect a secondary diffracted beam after interference and a second diffraction of the primary diffracted irradiation beam on the second scale to measure the position of the first scale with respect to the second scale.
摘要:
The invention relates to a lithographic apparatus including an illumination system configured to condition a radiation beam, a patterning device support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam, a substrate support constructed to hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate, and an encoder-type measurement system configured to at least during projection of the patterned radiation beam onto a target portion of the substrate continuously determine a position quantity of a patterning device supported on the patterning device support using a grid or grating provided on the patterning device.
摘要:
A system for detecting motion of a body, the system comprising: a body; a first grating mounted substantially stationary relative to a frame of reference; a second grating mounted on the body; a detector arranged to receive one or more radiation beams diffracted at the first and second gratings thereby to detect motion of the body relative to the frame of reference; wherein the detector is coupled to the body and moveable relative to the body.