WO2024074964 - SURFACE CHARACTERIZATION OF MATERIALS USING CATHODOLUMINESCENCE

National phase entry:
Publication Number WO/2024/074964
Publication Date 11.04.2024
International Application No. PCT/IB2023/059804
International Filing Date 29.09.2023
Title **
[English] SURFACE CHARACTERIZATION OF MATERIALS USING CATHODOLUMINESCENCE
[French] CARACTÉRISATION DE SURFACE DE MATÉRIAUX PAR CATHODOLUMINESCENCE
Applicants **
SILANNA UV TECHNOLOGIES PTE LTD
Inventors
ATANACKOVIC, Petar
LANE, Dominic
Priority Data
63/378,684   07.10.2022   US
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Quotation for National Phase entry

Country StagesTotal
China Filing, Examination, Granting3892
EPO Filing, Examination, Granting43937
Japan Filing, Examination, Granting3542
South Korea Filing, Examination, Granting3523
USA Filing, Examination, Granting13340
MasterCard Visa
Total: 68,234

The term for entry into the National Phase has expired. This quotation is for informational purposes only

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Abstract[English] Methods and systems include generating, from an electron beam generator, an electron beam in a vacuum chamber. A mounting platform in the vacuum chamber is configured to support a material. The electron beam is directed at a surface region of the material at a grazing angle. A detector assembly, which may have an optical entry path positioned above the surface region, receives cathodoluminescent light emission arising from the electron beam transferring energy to the surface region. The detector assembly determines spectral characteristics of the cathodoluminescent light emission to characterize the surface region.[French] Les procédés et les systèmes de l'invention comprennent la production, à partir d'un générateur de faisceau d'électrons, d'un faisceau d'électrons dans une chambre à vide. Une plateforme de montage dans la chambre à vide est configurée pour supporter un matériau. Le faisceau d'électrons est dirigé vers une région superficielle du matériau à un angle d'incidence. Un ensemble détecteur, qui peut comporter un chemin d'entrée optique placé au-dessus de la région de surface, reçoit l'émission de lumière de cathodoluminescence provenant du faisceau d'électrons transférant de l'énergie à la région de surface. L'ensemble détecteur détermine des caractéristiques spectrales de l'émission de lumière cathodoluminescente pour caractériser la région de surface.