摘要:
An immersion lithographic apparatus is described in which a member is provided above the surface of the substrate and the substrate table. Immersion liquid is provided between the substrate table and the substrate and the member. In an embodiment, a beam of radiation passes through the plate. In an embodiment, the member has a through hole in it through which the beam passes.
摘要:
A fluid handling structure is disclosed which is designed for all wet immersion lithography. The fluid handling structure has a first opening to provide fluid to a space between a final element of a projection system and a substrate and/or substrate table, a barrier to resist the flow of liquid out of the space between the fluid handling structure and the substrate, and a second opening, which opens into an area radially outwardly of the space, to provide a flow of fluid from the fluid handling structure onto a top surface of the substrate and/or substrate table radially outwardly of the space. A controller may be provided such that flow of fluid towards a center of the substrate table is greater than the flow of fluid in a direction away from the center of the substrate table.
摘要:
A difficulty of contamination interfering with a grid plate positional measurement system is addressed. In one embodiment contamination is prevented from coming into contact with the grating or the sensor. In an embodiment, surface acoustic waves are used to detach contamination from a surface of the grating or sensor.
摘要:
An immersion lithographic projection apparatus is disclosed in which a liquid removal system surrounds a liquid supply system which provides liquid to a space between a projection system and a substrate. The liquid removal system is moveable relative to the liquid supply system and is controlled to have substantially zero velocity relative to the moving substrate table. The gap between the liquid supply system and the liquid removal system may be covered and the atmosphere between the liquid supply system and the liquid removal system above the substrate table may be maintained such that the vapor pressure of liquid is relatively high.
摘要:
A cover is provided for a substrate table in an immersion lithographic apparatus that covers at least the gap between a substrate and a recess in a substrate table in which the substrate is received.
摘要:
A difficulty of contamination interfering with a grid plate positional measurement system is addressed. In one embodiment contamination is prevented from coming into contact with the grating or the sensor. In an embodiment, surface acoustic waves are used to detach contamination from a surface of the grating or sensor.
摘要:
An immersion lithographic projection apparatus is disclosed in which a liquid removal system surrounds a liquid supply system which provides liquid to a space between a projection system and a substrate. The liquid removal system is moveable relative to the liquid supply system and is controlled to have substantially zero velocity relative to the moving substrate table. The gap between the liquid supply system and the liquid removal system may be covered and the atmosphere between the liquid supply system and the liquid removal system above the substrate table may be maintained such that the vapor pressure of liquid is relatively high.
摘要:
A cover is provided for a substrate table in an immersion lithographic apparatus that covers at least the gap between a substrate and a recess in a substrate table in which the substrate is received.