摘要:
An exposure apparatus, having an illumination optical system for radiating a light beam from a light source to a pattern area of a mask for transferring the image of the pattern area onto a photosensitive substrate by the light beam passing through the mask, is provided with plural sets of a first reference mark and a second reference mark arranged on the mask and the photosensitive substrate at positions corresponding to each other, and a light-shielding device for shielding the light beams radiated toward the second reference marks, whereby it is possible to re-use the second reference marks in a post-process by preventing the first reference marks on the mask from being superposed on the second reference marks on the photosensitive substrate or from being transferred onto a part near the second reference marks.
摘要:
An exposure apparatus comprises a plurality of illumination optical systems for generating a plurality of light beams, a plurality of projection optical systems disposed corresponding to the plurality of illumination optical systems, respectively, a plurality of light intensity detectors, provided respectively for the plurality of illumination optical systems, for detecting individual intensities of the plurality of light beams, a light intensity changing device for changing the respective intensities of the plurality of light beams, and a control device for controlling the light intensity changing device and uniformizing the intensities of the plurality of light beams to a substantially fixed level.
摘要:
A vibration control apparatus suppresses a vibration of a structure which is vibrated. The vibration control apparatus includes: a vibration isolation apparatus that supports the structure and suppresses a transmission of a vibration to the structure, the vibration having an amplitude equal to or less than a first amplitude in a predetermined direction; and a damping apparatus that damps a vibration of the structure vibrating in the predetermined vibration direction with a second amplitude larger than the first amplitude, to thereby reduce the vibration to equal to or less than the first amplitude.
摘要:
An exposure apparatus includes a plurality of projection optical systems, each of which has optical elements arranged in an optical path between a first surface and a second surface and forms a radiation pattern from the first surface onto an exposure field on the second surface via the optical elements. The apparatus also includes a movable portion disposed in the side of the second surface with respect to the plurality of projection optical systems, which holds an object to be moved relative to the exposure field in a first direction during a scanning exposure of the object with the radiation patterns. Each of the plurality of projection optical systems is telecentric on the side of the second surface, and the exposure fields are arranged at different positions in a second direction crossing the first direction.
摘要:
The memory unit stores the correlation of the positional change in the image planes of the projection optical modules in the focusing direction and the light quantity change. The image plane position determination unit finds the positional change value of the image planes of the projection optical modules based on the correlation information that is stored in the memory unit and the information on changes in the amount of light that is emitted to the projection optical modules. The compensation value calculating unit calculates the compensation value corresponding to the change in the amount of curvature in the image planes of the projection optical modules. The compensating unit compensates the change value in conformity with the compensation value. The focus compensation optical system is driven based on the change value that is compensated.
摘要:
An exposure/imaging apparatus and method effects projection exposure while moving a first object and a second object in a predetermined moving direction, effecting projection exposure of an image of the first object onto the second object. An adjusting member is used to adjust imaging characteristics of a projection optical system that is used to perform the projection exposure.
摘要:
A method of transferring a pattern of a mask onto an object through a projection system, includes the steps of providing a carriage having a mask holder surface adapted to hold the mask in a position which is angularly displaced from a horizontal position by a predetermined angle and an object holder surface adapted to the object in a position which is angularly displaced from the horizontal position by the predetermined angle, the carriage being movable in a first direction; transferring the pattern onto the object, the projection system being located between the mask and the object during the transfer operation; moving the carriage so that the projection system comes to a position out of a place between the mask holder surface and the object holder surface; and conveying the object from the object holder surface.
摘要:
There is disclosed an exposure apparatus for, while moving a first object and a second object in a certain moving direction, effecting projection exposure of an image of the first object onto the second object.
摘要:
The present invention provides a scanning exposure apparatus for projecting an image of a pattern area of a mask having a first alignment mark onto a photosensitive substrate disposed on a substrate stage. A second alignment mark is provided on at least one of the photosensitive substrate and the substrate stage. The scanning exposure apparatus includes a plurality of projection optical systems disposed along a predetermined direction and adapted to receive the luminous fluxes passed through the mask and to project elected images of unchanged dimension of the plurality of illuminated regions of the mask onto the substrate. There is provided a mark detection system for detecting the first alignment mark on the mask and the second alignment mark, and at least one of the projection optical systems constitutes a part of the mark detection system.
摘要:
An exposure apparatus is used for reproducing a mask pattern of a semiconductor device or the like onto a photosensitive substrate using a holography. The holography is utilized also in a process for alignment between a mask pattern hologram and an exposure region of the substrate. The pattern hologram is recorded to a recording medium by interference between an object wave from the pattern and a reference wave, and a second hologram is formed to the medium by diffraction light from an alignment mark formed on the mask. Prior to reconstruction of the pattern image, reconstruction light from the second hologram, illuminated with a reconstruction wave, is irradiated onto the substrate arranged in place of the mask. A reproduction image of the alignment mark on the substrate surface illuminated with the reconstruction light is measured, and relative displacement between the medium and the substrate is detected from a result of the measurement. The relative positional relationship between the medium and the substrate is corrected in accordance with the displacement information, and, thereafter, the surface is exposed with a reconstruction image of the pattern hologram.