Patent ID: 6078641
Filing Date: 2000-06-20
Classification: G03F,G21K

Abstract:
An X-ray lithography system for exposing photoresist material coated on a wafer by an X-ray beam through an X-ray mask, comprising:(a) an X-ray reflection mirror whose radius of curvature is changed to differentiate its reflection characteristic according to an in-plane incident position of the X-ray beam;(b) an X-ray reflection mirror driving unit connected to the X-ray reflection mirror, for changing an incident position of the X-ray beam into the X-ray reflection mirror;(c) a relative positional information acquiring means for acquiring relative positional information between a pattern on the X-ray mask and a pattern on the wafer during exposure;(d) a two dimensional information acquiring means for acquiring two dimensional information of the X-ray beam during exposure; and(e) an X-ray reflection mirror controlling unit for feedback-controlling the X-ray reflection mirror driving unit in real time, based upon at least one of the relative positional information and the two dimensional information during exposure by the X-ray beam.