Patent ID: 6015976
Filing Date: 2000-01-18
Classification: G03F,H01J,H01L

Abstract:
An apparatus for performing micro-fabrication processing on a workpiece, said apparatus comprising:an energy beam source for generating an energy beam along a beam axis;a stage for holding a workpiece in a manner to adjust an orientation of the workpiece relative to said beam axis;a mask member having a fine-structural pattern;a mask holding device for holding said mask member at a position spaced from the workpiece held by said stage;a relative positioning device for moving at least one component among said energy beam source, said mask member and the workpiece held by said stage relative to other of said components; anda controller for controlling operation of said relative positioning device to ensure that said movement of said at least one component relative to said other components comprises continuous movement to produce a fine structure having a smooth curved or inclined surface on the workpiece.