DEFECT DETECTION DEVICE AND DEFECT DETECTION METHOD

    公开(公告)号:US20240255439A1

    公开(公告)日:2024-08-01

    申请号:US18367784

    申请日:2023-09-13

    IPC分类号: G01N21/95 G01N21/31 G06N20/00

    摘要: A defect detection method includes radiating light onto a substrate, obtaining a spectrum image, performing an electrical die sorting (EDS) test on the substrate, inspecting defects of each of a plurality of blocks of the substrate based on a result of the EDS test, generating a defect map, generating spectrum image information by matching the spectrum image with the defect map, training a defect detection model by using the defect grade as an output value and the spectrum image information as an input value, obtaining a target spectrum image with respect to a target substrate, extracting a feature vector from the target spectrum image by using the defect detection model, and detecting a target defect grade of the target spectrum image based on the feature vector, and generating a target defect map based on the target defect grade.

    COMPLEX SENSING DEVICE AND SENSING METHOD INCLUDING THE SAME

    公开(公告)号:US20240255274A1

    公开(公告)日:2024-08-01

    申请号:US18425830

    申请日:2024-01-29

    IPC分类号: G01B11/06 G01B11/24 G01B15/04

    CPC分类号: G01B11/06 G01B11/24 G01B15/04

    摘要: Provided is a complex sensing device including a thickness sensing device including pulse generating device configured to generate a probe pulse and a pump pulse, a first optical splitter configured to split the probe pulse and direct the pump pulse to a surface of a sample and generate an acoustic signal in the sample, a detector configured to receive a reflection probe pulse generated by the probe pulse being reflected from the sample, a first processor configured to receive and process a first signal from the detector, and a second optical splitter on a path of the reflection probe pulse from the sample to the detector, the second optical splitter being configured to split the reflection probe pulse, and a surface shape sensing device configured to receive a split probe pulse split from the first optical splitter and a split reflection probe pulse split from the second optical splitter, and measure a surface shape of the sample based on a phase difference between the split probe pulse and the split reflection probe pulse.