ASML Holding N.V.
Membrane assembly

Abstract:

A membrane assembly for EUV lithography, the membrane assembly including: a planar membrane; a border configured to hold the membrane; and a frame assembly connected to the border and configured to attach to a patterning device for EUV lithography, wherein the frame assembly is connected to the border in a direction perpendicular to the plane of the membrane such that in use the frame assembly is between the border and the patterning device.