Abstract:
A substrate holder for use in a lithographic apparatus, the substrate holder including: a main body having a surface; a plurality of burls projecting from the surface and having end surfaces to support a substrate; and a thin film stack on the main body surface and forming an electric component, the thin film stack having a conductive layer configured to distribute electrical charge substantially uniformly throughout a plane of the stack in which the conductive layer is positioned.
Abstract:
A method is disclosed to form a patterned epitaxy template, on a substrate, to direct self-assembly of block copolymer for device lithography. A resist layer on a substrate is selectively exposed with actinic (e.g. UV or DUV) radiation by photolithography to provide exposed portions in a regular lattice pattern of touching or overlapping shapes arranged to leave unexposed resist portions between the shapes. Exposed or unexposed resist is removed with remaining resist portions providing the basis for a patterned epitaxy template for the orientation of the self-assemblable block copolymer as a hexagonal or square array. The method allows for simple, direct UV lithography to form patterned epitaxy templates with sub-resolution features.