Abstract: A vessel (16) for an EUV radiation source, the vessel comprising a first opening (30) for accessing an interior (32) of the vessel, a first access member (34) configured to allow or prevent access to the interior of the vessel through the first opening, a second opening (36) for accessing the interior of the vessel, the second opening being arranged in the first access member and a second access member (38) arranged on the first access member and configured to allow or prevent access to the interior of the vessel through the second opening.

Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.

Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.

Abstract: A vessel (16) for an EUV radiation source, the vessel comprising a first opening (30) for accessing an interior (32) of the vessel, a first access member (34) configured to allow or prevent access to the interior of the vessel through the first opening, a second opening (36) for accessing the interior of the vessel, the second opening being arranged in the first access member and a second access member (38) arranged on the first access member and configured to allow or prevent access to the interior of the vessel through the second opening.

Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.

Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.

Abstract: An extreme ultraviolet radiation (EUV) source, including: a vessel having an inner vessel wall and an intermediate focus (IF) region; an EUV collector disposed inside the vessel, the EUV collector including a reflective surface configured to reflect EUV radiation toward the intermediate focus region, the reflective surface configured to directionally face the IF region of the vessel; a showerhead disposed along at least a portion of the inner vessel wall, the showerhead including a plurality of nozzles configured to introduce gas into the vessel; and one or more exhausts configured to remove gas introduced into the vessel, the one or more exhausts being oriented along at least a portion of the inner vessel wall so that the gas is caused to flow away from the EUV collector.

Abstract: A mount configured to mount an optical element in a module for a lithographic apparatus. The mount includes a plurality of resilient members constructed and arranged to circumferentially support the optical element. Each resilient member includes a plurality of resilient subsections that are configured to engage the optical element around a perimeter thereof. Each resilient subsection is configured to flex independent of another resilient subsection.

Abstract: A radiation source includes a nozzle configured to direct a stream of fuel droplets along a trajectory towards a plasma formation location; a laser configured to output laser radiation, the laser radiation directed at the fuel droplets at the plasma formation location to generate, in use, a radiation generating plasma; and a catch configured to catch fuel droplets that pass the plasma formation location. The catch includes a container configured to contain a fluid; a driver configured to drive the fluid, to cause the fluid to move; the catch being configured such that the fuel droplets are incident on that moving fluid.

Abstract: A radiation source includes a nozzle configured to direct a stream of fuel droplets along a trajectory towards a plasma formation location; a laser configured to output laser radiation, the laser radiation directed at the fuel droplets at the plasma formation location to generate, in use, a radiation generating plasma; and a catch configured to catch fuel droplets that pass the plasma formation location. The catch includes a container configured to contain a fluid; a driver configured to drive the fluid, to cause the fluid to move; the catch being configured such that the fuel droplets are incident on that moving fluid.

Abstract: A mount configured to mount an optical element in a module for a lithographic apparatus. The mount includes a plurality of resilient members constructed and arranged to circumferentially support the optical element. Each resilient member includes a plurality of resilient subsections that are configured to engage the optical element around a perimeter thereof Each resilient subsection is configured to flex independent of another resilient subsection.

Abstract: The present invention relates to a lithographic projection apparatus with a supporting structure to support and move an object, like a substrate. The supporting structure may be a robot having a robotic arm with a support frame for supporting, e.g. the substrate. The support frame includes a clamping structure having one or more clamps for holding the substrate during movement. The robot arm comprises one or more compliant parts. The clamp may be a Johnson-Raybeck effect type clamp with an oxidized upper surface. For better de-clamping, a RF AC decaying de-clamping voltage may be provided to the clamp. The apparatus may be cleaned with one single substrate only.

Abstract: The invention relates to a transfer apparatus for transferring an object (W). the transfer apparatus comprises a gripper (15) for at least one of gripping the object (W) at a first position and then releasing the object (W) at a second position proximate to a receiver (20) and releasing the object (W) at a first position after gripping the object at a second position proximate to the receiver (20). The transfer apparatus is further provided with a measurement device (22) arranged to measure the relative position of the gripper (15) with respect to the receiver (20) in at least one dimension. Further, a relative position error is defined with respect to a desired relative position based on the relative position measured. The relative position of the gripper (15) and the receiver (20) are adjusted for minimizing the relative position error in the second position.

Abstract: A transporter is provided for moving a substrate and a patterning device relative to one another in a lithographic apparatus. The transporter includes a beam, a driver, and a slide. The slide is supported by the beam, and the driver is disposed to move the slide relative to the beam in a transport direction. The beam has a concave interior surface transverse to the transport direction, and the slide is supported against the concave interior surface in at least two directions transverse to the transport direction.

Abstract: A system and method are used to allow for compensation of a thermal output of an array of individually controllable elements. This can be done by inputting control signals to the array when it is not being used to pattern a projection beam in order to maintain the temperature of the array. A heating element can be provided to maintain the temperature of the array. A thermal reservoir can be provided to maintain the temperature of the array or a cooling element can be provided to reduce the temperature of the array during use.

Abstract: A lithographic apparatus is disclosed. The apparatus includes an illumination system for providing a beam of radiation, a support surface having an edge, and a support structure for supporting an object to be moved across the beam of radiation. The support structure is moveably supported on the support surface. The apparatus also includes a rim that is associated with the support surface. The support structure and the rim are configured to allow the support structure to move in a first direction toward the rim and collide with the rim. A total force generated by the collision on the support structure is at least partially directed away from a second direction that is opposite to the first direction.

Abstract: The present invention relates to a lithographic projection apparatus with a supporting structure to support and move an object, like a substrate. The supporting structure may be a robot having a robotic arm with a support frame for supporting, e.g. the substrate. The support frame includes a clamping structure having one or more clamps for holding the substrate during movement. The robot arm comprises one or more compliant parts. The clamp may be a Johnson-Raybeck effect type clamp with an oxidized upper surface. For better de-clamping, a RF AC decaying de-clamping voltage may be provided to the clamp. The apparatus may be cleaned with one single substrate only.