LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD.

    公开(公告)号:NL2007789A

    公开(公告)日:2012-06-11

    申请号:NL2007789

    申请日:2011-11-15

    Abstract: A system to control the focus of a mask-less lithographic apparatus, the apparatus including a projection system to project an image of a programmable patterning device onto a substrate. A first actuator system is configured to move at least one of the lenses of the projection system in a direction perpendicular to the optical axis of the projection system. A radiation beam expander is configured to project an image of the programmable patterning device onto the at least one lens. A second actuator system is configured to move the radiation beam expander in a direction parallel to the optical axis of the projection system in order to control the focus of the image projected onto the substrate.

    LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD.

    公开(公告)号:NL2006260A

    公开(公告)日:2011-08-24

    申请号:NL2006260

    申请日:2011-02-18

    Abstract: A lithographic apparatus includes two or more optical columns configured to project a beam on a target portion of a substrate, each of the two or more optical columns including one or more radiation sources (906) to provide the beam, and a projection system (920, 924, 930) to project the beam onto the target portion; a scanning movement actuator configured to move the substrate with a scanning speed in a scanning direction with respect to the two or more optical columns; and two or more position measurement devices (944) configured to determine a position of the respective two or more optical columns with respect to a reference object (940).

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