X-ray or gamma ray systems or devices – Specific application – Lithography
Patent
1994-02-28
1994-12-27
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Lithography
378160, G21K 500
Patent
active
053772512
ABSTRACT:
An exposure method for manufacture of semiconductor devices, includes moving a shutter having an edge so that the edge is related to a predetermined exposure region; projecting an exposure beam to the edge of the shutter and to at least a portion of the exposure region; determining a position of a shadow of the edge of the shutter formed by the exposure beam with respect to a predetermined coordinate system related to movement of a movable chuck; adjusting the shutter in accordance with the determination; placing a substrate on the chuck; moving the chuck so that the substrate is related to the exposure region; and controlling the exposure of the substrate with the exposure beam through the shutter.
Ebinuma Ryuichi
Kariya Takao
Kurosawa Hiroshi
Mizusawa Nobutoshi
Uda Koji
Canon Kabushiki Kaisha
Church Craig E.
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