Abstract:
Multilayer reflective optical unit has a lateral gradient, the reflective surface of which serves to reflect X-rays which are incident at an acute angle of incidence and produce a 2-dimensional optical effect. Said reflective surface has a single surface that is shaped along two curves in two different directions. The invention also relates to a corresponding method for manufacturing such an optical unit in which a substrate that is already curved is coated along a different direction and a device for processing X-rays for use in RX angle dispersive reflectometry that serves to condition a beam incident on a sample such that it contains rays with different incidence angles.
Abstract:
L'invention concerne un ensemble optique comprenant un empilement d'une pluralité de coques réflectives (10;20), chaque coque réflective comprenant un substrat (11) ayant une face arrière (111) comprenant une pluralité de nervures (111) formant entretoise et une face avant (112), et un revêtement réflecteur (12) pour rayons X déposé sur la face avant (112) du substrat (11), caractérisé en ce que chaque coque réflective (10) comprend en outre une couche d'adhésion (13) déposée sur le revêtement réflecteur (12), la couche d'adhésion (13) étant une couche mince formée dans un matériau inorganique permettant une adhésion moléculaire avec la face arrière du substrat (21) de la coque réflective adjacente (20).L'invention concerne également un procédé de fabrication d'un tel ensemble optique.
Abstract:
Alteration of the reflective properties of desired regions of a multilayer structure (30) intended for exposure to and desired modification of radiation of a given wavelength involves exposure to a beam (20) of energetic particles. Control of exposure is performed in such a way that the reflectivity peak of each region is shifted in a desired manner within the wavelength spectrum. The multilayer structure (30) represents a reflective mask for lithography, and is intended for exposure to extreme ultraviolet (EUV) radiation. Preferably, the multilayer structure (30) comprises a diffractive pattern. Control of exposure of the structure (30) to the energy beam (20) is performed by adjusting the time of exposure of each individual region of the structure (30) to the beam (20), or by temporary and controlled modification of the energy beam (20). Alteration of the reflective properties of the region is achieved by modification of the period of the region, and constitutes treatment of the desired region to render it non-reflective or reflective. Independent claims are given for: (a) a reflective mask for lithography produced by the above process; (b) a mirror produced by the above process; and (c) use of the above process to adjust the optical properties of a multilayer structure comprising a mirror for EUV lithography. Preferred Use: The process is used for adjusting the optical properties of a multilayer structure.
Abstract:
A method for X-Ray Scattering material analysis, in particular Small Angle X-ray Scattering material analysis for generating and directing an incident X-ray beam along a propagation direction to a sample held in a sample environment executing a sample measurement process. An apparatus adapted to carry out such a method is also disclosed.
Abstract:
The invention relates to X-ray analytical instruments (RX), more precisely a device for providing a high energy X-ray beam, typically above 4 keV, for X-ray analysis applications. The device comprises an X-ray tube with a turning anode and an X-ray lens for shaping the beam.
Abstract:
The invention relates to X-ray analytical instruments (RX), more precisely a device for providing a high energy X-ray beam, typically above 4 keV, for X-ray analysis applications. The device comprises an X-ray tube with a turning anode and an X-ray lens for shaping the beam.
Abstract:
La présente invention concerne un ensemble optique réflectif multicouche (10) à gradient latéral dont la surface réfléchissante est destinée à réfléchir des rayons X incidents sous faible angle d'incidence en produisant un effet optique bidimensionnel, caractérisé par le fait que ladite surface réfléchissante est constituée d'une surface unique, ladite surface réfléchissante étant conformée selon deux courbures correspondant à deux directions différentes. La présente invention concerne également un procédé de fabrication d'un tel ensemble optique, caractérisé en ce que le procédé comprend le revêtement d'un substrat présentant déjà une courbure, et la courbure de ce substrat selon une deuxième direction différente. L'invention concerne enfin un dispositif de génération et de conditionnement de rayons X pour des applications de réflectométrie RX dispersive en angle comprenant un ensemble optique tel que mentionné ci-dessus couplé à une source rayons X de telle sorte que les rayons X émis par la source sont conditionnés en deux dimensions afin d'adapter le faisceau émis par la source à destination d'un échantillon, les rayons X ayant des angles d'incidences différents sur l'échantillon considéré.
Abstract:
One of the aspects of the invention relates to a method for altering the reflective qualities of desired regions of a multi-layered structure (30) which is exposed to radiation of a given wavelength value and for modifying said radiation in a desired manner by means of reflection, said alteration method involving the exposure of desired regions of the multi-layered structure to a beam (20) of energy, characterized in that the inventive method includes control of the exposure of the desired regions of the multi-layered structure to the beam of particles, whereby the reflectivity peak of each region of the structure can be shifted in a desired manner within the wavelength spectrum. A second aspect of the invention relates to a reflective lithographic mask and a mirror for X-rays carried out according to said method, in addition to the use of said method for rectifying the optical properties of a multi-layered structure.
Abstract:
L'invention concerne selon un premier aspect un procédé d'altération des propriétés réflectives de régions désirées d'une structure multicouche (30) destinée à être exposée à un rayonnement de longueur d'onde donnée et à modifier de manière désirée ledit rayonnement par réflexion, ledit procédé d'altération mettant en oeuvre l'exposition de la structure à un faisceau (20) énergétique, caractérisé en ce que le procédé comprend le contrôle de l'exposition des régions désirées de la structure multicouche audit faisceau de particules, de manière à déplacer de manière désirée dans le spectre de longueur d'onde la valeur du pic de réflectivité de chaque région de la structure. L'invention concerne selon un second aspect un masque réflectif de lithographie, un miroir pour rayons X, réalisés par un tel procédé, et l'utilisation de ce procédé pour rectifier les propriétés optiques d'une structure multicouche.
Abstract:
The invention refers to an X-ray scattering apparatus (10), comprising: - a sample vacuum chamber (26); - a sample holder (20) placed inside the sample vacuum chamber (26) for aligning and/or orienting a sample (18) to be analyzed by X-ray scattering; - an X-ray beam delivery system (11) comprising a 2D X-ray source and a 2D monochromator and being arranged upstream of the sample holder (20) for generating and directing an X-ray beam along a beam path in a propagation direction (Y) towards the sample holder (20); - an X-ray detector (22), placed inside a diffraction chamber connected to the sample vacuum chamber (26), wherein the X-ray detector (22) is arranged downstream of the sample holder (20) and is movable, in particular in a motorized way, along the propagation direction such as to detect the X-ray beam and X-rays scattered at different scattering angles from the sample (18); - wherein the X-ray beam delivery system (11) is configured to focus the X-ray beam onto a focal spot on or near the X-ray detector (22) when placed at its distal position having the largest distance from the sample holder (20) or to produce a parallel beam, - a Bonse Hart monochromator module (12) positioned upstream of the sample holder (20) and being equipped with a motorized monochromator holder; - a Bonse Hart analyzer module (14) positioned downstream of the sample holder (20) and being equipped with a motorized analyzer holder (14a); wherein both the motorized monochromator holder and the motorized analyzer holder (14a) are configured such as to simultaneously position their respective modules (12, 14) in an active position in the X-ray beam for USAXS measurements and in an inactive position out of the X-ray beam for SAXS measurements, characterized in that the X-ray scattering apparatus (10) furthermore comprises a storage chamber (32) integral with or connected to the sample vacuum chamber (26) and/or the diffraction chamber, and that the motorized analyzer holder (14a) is furthermore configured to position the Bonse Hart analyzer module (14) in a storage position in the storage chamber (32). The invention furthermore refers to an X-ray scattering method carried out using the X-ray scattering apparatus.