Patent ID: 7189446
Filing Date: 2007-03-13
Classification: B82Y,G03F,Y10T

Abstract:
1. An EUV lithography apparatus comprising: an EUV source; an optical system coupled to the EUV source; and a curved honeycomb article made using the process described below placed operatively between the EUV source and the optical system, such that a substantial fraction of the EUV radiation generated by the EUV source propagates through the channels of the curved honeycomb article; said process comprising the steps of: providing a honeycomb body having a first face, a second face, and a honeycomb structure having a plurality of substantially parallel channels formed from the first face to the second face; filling the channels of the honeycomb body with a filler material, thereby forming a filled honeycomb composite; molding the filled honeycomb composite to form a curved filled honeycomb composite; and finishing the curved filled honeycomb composite into the curved honeycomb article, wherein during the step of molding, the filler material has a plastic deformation behavior compatible with that of the honeycomb body.