Patent ID: 6028659
Filing Date: 2000-02-22
Classification: G03F

Abstract:
A method for manufacturing a scanning-type exposure apparatus that transfers a pattern, defined on a mask, onto each of a plurality of transfer regions on a substrate, the method comprising the steps:(a) providing an illumination light source that illuminates a pattern defined on the mask with an illumination light;(b) providing a stage, arranged on an axis of the illumination light, that moves at least one of the mask and substrate in a plane orthogonal to the axis in order to scanningly expose the pattern sequentially onto the transfer regions on the substrate with the illumination light, each exposure of a transfer region being performed at an exposure position;(c) providing a detector that detects an abnormality in the scanning exposure apparatus during a preparatory period extending from starting a movement of the stage to effect movement of a predetermined transfer region, to be subsequently exposed, in a predetermined direction to the exposure position, to a moment when the predetermined transfer region arrives at the exposure position for exposure; and(d) providing a stage controller and electrically connecting the stage controller to the detector and to the stage, the stage controller being operable to maintain a continuous movement of the stage in the predetermined direction until at least the predetermined transfer region passes the exposure position, even when the detector detects the abnormality.