Method for producing a microstructure component, microstructure component and x-ray device

    公开(公告)号:US11039802B2

    公开(公告)日:2021-06-22

    申请号:US16281189

    申请日:2019-02-21

    发明人: Andrea Deutinger

    摘要: In a method for producing a microstructure component, which is used in particular as an x-ray phase contrast grating in an x-ray device, a material absorbing x-rays is poured into a mold able at least to be deformed about one bending axis, which is formed by a silicon substrate and which has a plurality of cutouts running in a direction of the thickness of the silicon substrate with dimensions in the micrometer range. The mold into which the material is poured is heated up to a working temperature value lying above the room temperature and below a melting temperature value of the material which is poured into it and is formed into a final contour as per specifications.

    Interferometer grating support for grating-based x-ray imaging and/or a support bracket therefor

    公开(公告)号:US11026643B2

    公开(公告)日:2021-06-08

    申请号:US16463857

    申请日:2017-11-30

    IPC分类号: A61B6/00 A61B6/03 G21K1/06

    摘要: An interferometer grating support (118) of an imaging system (100) configured for grating-based x-ray imaging includes at least two elongate supports (302) separated from each other by a non-zero distance, wherein the at least two elongate supports have a first end (312) and a second end (316). The grating support further includes a first arc shaped grating (202) affixed to the first end and a second arc shaped grating (204) affixed to a second end (316). A non-transitory computer readable medium is configured with computer executable instructions which when executed by a processor of a computer cause the processor to: move a grating support, which supports G0 and G1 gratings of an interferometer and a bowtie filter, into a region between a low energy photon filter and a beam collimator, which are between a radiation source and an examination region, for a grating-based x-ray imaging scan.

    SUBSTRATE FOR AN EUV-LITHOGRAPHY MIRROR

    公开(公告)号:US20210149093A1

    公开(公告)日:2021-05-20

    申请号:US17162439

    申请日:2021-01-29

    摘要: Substrates suitable for mirrors used at wavelengths in the EUV wavelength range have substrates (1) including a base body (2) made of a precipitation-hardened alloy, of an intermetallic phase of an alloy system, of a particulate composite or of an alloy having a composition which, in the phase diagram of the corresponding alloy system, lies in a region which is bounded by phase stability lines. Preferably, the base body (2) is made of a precipitation-hardened copper or aluminum alloy. A highly reflective layer (6) is preferably provided on a polishing layer (3) of the substrate (1) of the EUV mirror (5).

    PHASE CONTRAST X-RAY INTERFEROMETRY

    公开(公告)号:US20210065924A1

    公开(公告)日:2021-03-04

    申请号:US17097770

    申请日:2020-11-13

    IPC分类号: G21K1/06 G01N23/041

    摘要: A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.

    DIFFRACTION GRATING FOR X-RAY PHASE CONTRAST AND/OR DARK-FIELD IMAGING

    公开(公告)号:US20210065923A1

    公开(公告)日:2021-03-04

    申请号:US16644178

    申请日:2018-08-24

    发明人: THOMAS KOEHLER

    摘要: The present invention relates to a grating for X-ray phase contrast and/or dark-field imaging. It is described to form a photo-resist layer on a surface of a substrate. The photo-resist layer is illuminated with radiation using a mask representing a desired grating structure. The photo-resist layer is etched to remove parts of the photo-resist layer, to leave a plurality of trenches that are laterally spaced from one across the surface of the substrate. A plurality of material layers are formed on the surface of the substrate. Each layer is formed in a trench. A material layer comprises a plurality of materials, wherein the plurality of materials are formed one on top of the other in a direction perpendicular to the surface of the substrate. The plurality of materials comprises at least one material that has a k-edge absorption energy that is higher than the k-edge absorption energy of Gold and the plurality of materials comprises Gold.

    TARGET DEBRIS COLLECTION DEVICE AND EXTREME ULTRAVIOLET LIGHT SOURCE APPARATUS INCLUDING THE SAME

    公开(公告)号:US20210059035A1

    公开(公告)日:2021-02-25

    申请号:US16835708

    申请日:2020-03-31

    IPC分类号: H05G2/00 G21K1/06 G03F7/20

    摘要: A target debris collection device for extreme ultraviolet (EUV) light source apparatus, includes a baffle body extending within an EUV vessel between a collector and an outlet port of the EUV vessel to allow EUV light reflected from the collector to pass through an internal transmissive region thereof, a discharge plate provided in a first end portion of the baffle body adjacent to the collector to collect the target material debris on an inner surface of the baffle body, a guide structure to guide the target material debris collected in the discharge plate to a collection tank, and a first heating member provided in the guide structure to prevent the target material debris from being solidified.

    Optical assembly for guiding an output beam of a free electron laser

    公开(公告)号:US10928734B2

    公开(公告)日:2021-02-23

    申请号:US16579398

    申请日:2019-09-23

    发明人: Michael Patra

    摘要: An optical assembly guides an output beam of a free electron laser to a downstream illumination-optical assembly of an EUV projection exposure apparatus. The optical assembly has first and a second GI mirrors, each with a structured reflection surface to be impinged upon by the output beam. A first angle of incidence on the first GI mirror is between one mrd and 10 mrad. A maximum first scattering angle is produced, amounting to between 50% and 100% of the first angle of incidence. A second angle of incidence on the second GI mirror is at least twice as large as the first angle of incidence. A maximum second scattering angle of the output beam amounts to between 30% and 100% of the second angle of incidence. The two planes of incidence on the two GI mirrors include an angle with respect to one another that is greater than 45°.

    Flexible aperture x-ray inspection
    60.
    发明授权

    公开(公告)号:US10908100B2

    公开(公告)日:2021-02-02

    申请号:US16140261

    申请日:2018-09-24

    发明人: Morteza Safai

    摘要: Disclosed herein is an apparatus for forming an x-ray beam. The apparatus comprises a plurality of links pivotably coupled together, in an end-to-end manner, to form a continuous loop. The plurality of links comprises two or more links configured to block a transmission of an x-ray emission. The plurality of links also comprises at least one link comprising an aperture that is configured to allow only a portion of the x-ray emission to pass through the aperture.