Abstract:
A method for unloading a substrate from a support table configured to support the substrate, the method comprising: supplying gas to a gap between a base surface of the support table and the substrate via a plurality of gas flow openings in the support table, wherein during an initial phase of unloading the gas is supplied through at least one gas flow opening in an outer region of the support table and not through any gas flow opening in a central region of the support table radially inward of the outer region, and during a subsequent phase of unloading the gas is supplied through at least one gas flow opening in the outer region and at least one gas flow opening in the central region.
Abstract:
The present invention relates to a substrate (100), a substrate holder (200), a substrate coating apparatus (800, 801), a method for coating the substrate (100) and a method for removing the coating (102). A monomolecular layer (102) is applied to the backside (101) of the substrate or a clamp surface (201) of the substrate holder (200). The friction force between the substrate backside and the substrate is small when the substrate does not experience full clamping force (210). After loading the substrate (100) on the substrate holder (200) full clamping force (210) is exerted in order to fix the substrate. The clamping force causes local removal of the monomolecular layer (102), resulting in an increase of the friction force between the substrate (100) and the substrate holder (200).
Abstract:
A lithographic apparatus comprising a support structure configured to be moved by a first scan distance during a single scanning operation when supporting a patterning device having a first extent in the scanning direction and to be moved by a second scan distance during a single scanning operation when supporting a patterning device having a second extent in the scanning direction, and a substrate table configured to be moved by a third scan distance during a single scanning operation when the support structure supports a patterning device having the first extent in the scanning direction and to be moved by a fourth scan distance during a single scanning operation when the support structure supports a patterning device having the second extent in the scanning direction.