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    ULTRA-THIN DATA CARRIER AND METHOD OF READ-OUT
    4.
    发明公开
    ULTRA-THIN DATA CARRIER AND METHOD OF READ-OUT 审中-公开

    公开(公告)号：EP4435784A2

    公开(公告)日：2024-09-25

    申请号：EP24187596.2

    申请日：2022-02-03

    申请人： Ceramic Data Solutions GmbH

    发明人： KUNZE, Martin ,  PFLAUM, Christian

    IPC分类号： G11B7/24047

    CPC分类号： G11B7/24047 ,  G11B7/00451

    摘要： The present invention relates to a method of reading out a data carrier comprising a ceramic substrate having first and second opposite surfaces and a thickness of at most 500 µm, wherein the first surface of the substrate comprises a plurality of laser-ablated recesses encoding information, each recess having a depth of at most 1 µm; the method comprising the following steps: illuminating the data carrier with light of a first wavelength, detecting light transmitted through the data carrier and/or reflected by the data carrier, and analyzing the detected light in order to decode the information encoded in the recesses of the data carrier.