Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus significantly reduced in airflows in a process zone and imaging errors by pressure waves. SOLUTION: The lithographic apparatus includes: an illumination system configured to adjust a radiation beam; a support 1 structured to support a patterning device 2 capable of imparting a pattern to the cross-section of the radiation beam to form a patterned radiation beam; a substrate table 4 structured to hold a substrate 5; a projection system 3 configured to project the patterned radiation beam onto a target portion of the substrate 5; and a shield device 9 arranged between a source of airflows and/or pressure waves and an element sensitive to the airflows and/or pressure waves. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus having a chuck where a damping layer containing a viscoelastic material is provided between a base and a restriction layer. SOLUTION: The lithographic apparatus includes an illumination system configured to adjust a radiation beam; a support configured to support a patterning device that can provide a pattern to the radiation beam across its cross section so as to form a patterned radiation beam; a substrate table configured to hold a substrate; a projecting system configured to projected the patterned radiation beam onto a target portion of the substrate; and a chuck including a base and a restriction layer, which is configured to hold and position an object, e.g. a patterning device on a support of the substrate on the substrate table. The damping layer containing the viscoelastic material is provided between the base and the restriction layer. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce an influence of vibrations in a lithographic apparatus. SOLUTION: A lithographic apparatus transfers a pattern from a patterning device onto a substrate. This lithographic apparatus includes an acoustic sensor which measures first acoustic vibrations in a sensor measurement region of the lithographic apparatus. An actuator is provided at least in a region within the lithographic apparatus in order to generate second acoustic vibrations. Furthermore, a control device is provided which has a sensor input part for receiving a sensor signal of the acoustic sensor and an actuator output part for giving an actuator driving signal to the actuator. The control device drives the actuator so that the second acoustic vibrations cancel the first acoustic vibrations at least partially in the region. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the performance of an excess operation stage in order to solve the problem that the control of the excess operation stage is made difficult when the deformation of the stage is minimized or evaded. SOLUTION: This stage system for a lithography apparatus includes the stage, an excessively specified number of actuators arranged so as to operate on the stage, and a power source configured to supply currents to the actuators. The currents are supplied to a coil related to the first actuator of the actuators and a coil related to the second actuator of the actuators. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus, to provide a method of reducing gas borne noise of the lithography apparatus, and to provide a method of manufacturing a device. SOLUTION: The lithography apparatus includes: an illumination system configured to condition an emitted beam; a support constructed to support a patterning device, the patterning device being capable of imparting a cross-section of the emitted beam a pattern to form a patterned emitted beam; a substrate table constructed to hold a substrate; a projection system configured to project the patterned emitted beam onto a target portion of the substrate; and a passive noise damper configured to dampen the gas borne noise caused by movement of a movable part of the lithographic apparatus. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus with significantly reduced image-formation errors due to air flows and pressure waves in a process zone. SOLUTION: The lithographic apparatus includes an illumination system configured soas to adjust a radiation beam, a support constructed to support a patterning device, capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate table constructed to hold a substrate; a projection system configured to project the patterned radiation beam onto a target part of the substrate; and a shield device arranged between a source for air flows and/or pressure waves, and an element sensitive to air flows and/or pressure waves. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
The present disclosure relates to apparatus and methods for assessing samples using a plurality of charged particle beams. In one arrangement, at least a subset of a beam grid of a plurality of charged particle beams and respective target portions of a sample surface are scanned relative to each other to process the target portions. Signal charged particles from the sample are detected to generate detection signals. A sample surface topographical map is generated that represents a topography of the sample surface by analyzing the detection signals.