Abstract:
An extreme ultraviolet (EUV) microscope configured to analyze a sample (5). The microscope includes a source (2) of EUV radiation constructed and arranged to generate the EUV radiation with a wavelength at least in a range of about 2 - 6 nm, and an optical system (3) constructed and arranged to illuminate the sample with the EUV radiation and to collect a radiation emanating (6) from the sample. The optical system is arranged with at least one mirror that includes a multilayer structure for in- phase reflection of at least a portion of the radiation in the range of about 2 - 6 nm.
Abstract:
An alignment system aligns a laser beam to a desired position in a reference plane and to a desired direction in the reference plane. The system diffracts the laser light into different diffraction orders that are projected onto a detection plane using different lenses. As the locations of the projections of the different diffraction orders in the detection plane respond differently to changes in position and in direction of the beam in the reference plane, the locations of the projections enable to determine how to adjust the beam so as to get the beam properly aligned. The diffraction and the projection can be implemented by a hologram.
Abstract:
Apparatuses and methods for charged-particle detection may include a deflector system configured to direct charged-particle pulses, a detector having a detection element configured to detect the charged-particle pulses, and a controller having a circuitry configured to control the deflector system to direct a first and second charged-particle pulses to the detection element; obtain first and second timestamps associated with when the first charged-particle pulse is directed by the deflector system and detected by the detection element, respectively, and third and fourth timestamps associated with when the second charged-particle pulse is directed by the deflector system and detected by the detection element, respectively; and identify a first and second exiting beams based on the first and second timestamps, and the third and fourth timestamps, respectively.
Abstract:
A laser radiation source for a lithographic tool comprising a laser module to emit a first laser beam having a first wavelength and a second laser beam having a second wavelength, a beam separation device to separate the optical paths of the first and second laser beams and substantially recombine the optical paths, a beam delivery system to direct the first and second laser beams to a fuel target and an optical isolation apparatus to: adjust the polarization state of the first laser beam, adjust the polarization state of the second laser beam and to block radiation having the adjusted polarization states such that the reflection of the first laser beam and the reflection of the second laser beam are substantially blocked from propagating towards the laser module.
Abstract:
A source configured to generate radiation for a lithographic apparatus is disclosed. The source includes an anode, and a cathode. The cathode and the anode are configured to create a discharge in a fuel in a discharge space between the anode and the cathode so as to generate a plasma, the cathode and the anode positioned relative to each other so that, in use, current lines extending between the anode and the cathode are substantially curved so as to create a force that substantially radially compresses the plasma only in a region proximate an upper surface of the cathode or of the anode.
Abstract:
A lithographic apparatus includes an illumination system configured to condition a beam of radiation; a pattern support configured to hold a patterning device, the patterning device configured to pattern the beam of radiation to form a patterned beam of radiation; a substrate holder configured to hold a substrate, the substrate holder including a support surface in contact with the substrate; a projection system configured to project the patterned beam of radiation onto the substrate; and a cleaning system including a cleaning unit, the cleaning unit constructed and arranged to generate radicals on the support surface of the substrate holder to remove contamination therefrom.
Abstract:
An imaging apparatus comprising: a radiation system for providing a projection beam of radiation; a support structure for supporting programmable patterning means, the programmable patterning means serving to pattern the projection beam according to a desired pattern; a substrate table for holding a substrate; a projection system for projecting the patterned beam onto a target portion of the substrate, wherein the apparatus further comprises: beam splitting means (BS), provided between the programmable patterning means (PM) and the substrate table, serving to divert aside a portion (PB') of the patterned beam (PB); image detection means (ID), for analyzing said portion of the patterned beam.
Abstract:
Apparatuses (1400) and methods for charged-particle detection may include a deflector system (1408, 1410, 1412) configured to direct charged-particle pulses (1414, 1416, 1418), a detector having a detection element configured to detect the charged-particle pulses, and a controller having a circuitry configured to control the deflector system to direct a first and second charged-particle pulses to the detection element; obtain first and second timestamps associated with when the first charged-particle pulse is directed by the deflector system and detected by the detection element, respectively, and third and fourth timestamps associated with when the second charged-particle pulse is directed by the deflector system and detected by the detection element, respectively; and identify a first and second exiting beams based on the first and second timestamps, and the third and fourth timestamps, respectively.
Abstract:
Systems and methods are provided for measuring aberration in a lithographic apparatus. A radiation beam is modulated using an array of individually controllable elements (PD), and the modulated beam is projected using a projection system (PS). A pattern is provided on the array of individually controllable elements (PD) to modulate the radiation beam, and the pattern comprises a repeating structure that is formed from a plurality of features that are dimensioned such that first order diffraction of the radiation beam substantially fills the pupil of the projection system. A sensor (S) detects the projected radiation and measures interference in the radiation projected by the projection system (PS). Aberration in the detected radiation beam is then measured.
Abstract:
A lithographic apparatus includes an illumination system constructed and arranged to condition a radiation beam, and a support constructed and arranged to support a patterning device. The patterning device is capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The apparatus also includes a substrate table constructed and arranged to hold a substrate, and a projection system constructed and arranged to project the patterned radiation beam onto a target portion of the substrate. The substrate table includes a plurality of projections constructed and arranged to support corresponding parts of a bottom section of the substrate, and an actuator constructed and arranged to excite a Shockwave in the substrate.