摘要:
An imaging optical system for imaging a pattern of an object plane onto an image plane includes a first imaging optical system for imaging at a first imaging position, the first imaging optical system having a magnification α in a vacuum atmosphere, and a second imaging optical system for imaging at a second imaging position, the second imaging optical system having a magnification β in the vacuum atmosphere, wherein when an environment in which the imaging optical system is placed changes from the vacuum atmosphere to an air atmosphere or vise versa, a direction of the first imaging position that moves along an optical axis is opposite to a direction of the second imaging position that moves along the optical axis.
摘要:
An imaging optical system for imaging a pattern of an object plane onto an image plane includes a first imaging optical system for imaging at a first imaging position, the first imaging optical system having a magnification α in a vacuum atmosphere, and a second imaging optical system for imaging at a second imaging position, the second imaging optical system having a magnification β in the vacuum atmosphere, wherein when an environment in which the imaging optical system is placed changes from the vacuum atmosphere to an air atmosphere or vise versa, a direction of the first imaging position that moves along an optical axis is opposite to a direction of the second imaging position that moves along the optical axis.
摘要:
At least one exemplary embodiment is directed to an exposure apparatus which includes a chamber, an evacuating device configured to evacuate the chamber, a sensor configured to measure at least any one of the position and the height of a substrate, and a cover for hermetically sealing at least part of the sensor.
摘要:
At least one exemplary embodiment is directed to an exposure apparatus which includes a chamber, an evacuating device configured to evacuate the chamber, a sensor configured to measure at least any one of the position and the height of a substrate, and a cover for hermetically sealing at least part of the sensor.
摘要:
A method for calculating an offset of an exposure dose and a focus position in an exposure apparatus that exposes a substrate via an original includes the steps of obtaining information of a shape of a pattern formed on the substrate using the exposure apparatus, calculating a shift amount between a critical dimension contained in the information of the shape of the pattern and a reference value of the critical dimension, and calculating an offset of the focus position based on the information of the shape of the pattern, and calculating the offset of the exposure dose based on the shift amount and the offset of the focus position.
摘要:
An imprint apparatus, comprising a first holder for holding a mold having an imprint pattern; a second holder for holding a workpiece to which the imprint pattern is transferred; a first illumination system for irradiating a mark for determining a position of the mold and a mark for determining a position of the workpiece with light; a first and second optical systems for imaging the marks for the mold and workpiece at a first and second observation points respectively; an imaging optical system; a first and second image pick-up devices for observing the marks for the mold and workpiece respectively; and at least one of a first drive mechanism for moving the first image pick-up device while following movement of the first observation point and a second drive mechanism for moving the second image pick-up device while following movement of the second observation point.
摘要:
A shape measuring method for measuring a shape of a surface of an object. The method includes a first measuring step for measuring the surface of the object by detecting light from the object, and a second measuring step for measuring the surface of the object by relatively scanning a probe and the object. A scanning speed changes on the basis of the result of the first measurement step.
摘要:
A measurement method for measuring a distortion of a projection optical system that projects a pattern, used by an exposure apparatus that exposes the reticle pattern onto an object to be exposed, the measurement method includes the steps of a first exposing step for exposing a mark pattern onto the object to be exposed, the mark pattern having a mark on or near an optical axis of the projection optical system and a mark beside the optical axis, and being arranged at a position of the reticle, a second exposing step for only exposing a mark on or near the optical axis of the projection optical system in the mark pattern, measuring step for measuring a shape of the mark formed on the object to be exposed via the first and second exposing steps, and calculating step for calculating the distortion of the projection optical system from the shape of the mark measured by the measuring step.
摘要:
An alignment apparatus for aligning a reflective reticle includes a light source for emitting alignment light, an optical alignment mark provided on the reticle, and a reference mark provided on a reticle stage that holds the reticle. A detecting unit detects the alignment light reflected from the alignment mark and the reference mark, and the reticle is aligned on the basis of the result of detection by the detection unit.
摘要:
A shape measuring method for measuring a shape of a surface of an object. The method includes a first measuring step for measuring the surface of the object by detecting light from the object, and a second measuring step for measuring the surface of the object by relatively scanning a probe and the object. A scanning speed changes on the basis of the result of the first measurement step.