Inspection system and method for inspecting a sample by using a plurality of spaced apart beams

    公开(公告)号:US10054551B2

    公开(公告)日:2018-08-21

    申请号:US15134278

    申请日:2016-04-20

    IPC分类号: G01N21/88

    摘要: An inspection system that may include an illumination module that may be configured to scan a sample during multiple scan iterations; wherein during each scan iteration the illumination module scans each beam of a plurality of spaced apart beams along a scan line; a mechanical stage that may be configured to move the sample during the multiple scan iterations; a detection module; and a processor; wherein when the inspection system operates in an interlaced mode, the mechanical stage may be configured to move at a first speed thereby preventing a substantial overlap between scan lines obtained during the multiple scan iterations; wherein when the inspection system operates in a non-interlaced mode: the mechanical stage may be configured to move at a second speed that differs from the first speed thereby introducing an overlap between scan lines of different beams that may be obtained during different scan iterations; the detection module may be configured to generate detection signals in response to a detection of radiation emitted from the sample as a result of each scan line; and wherein the processor may be configured to independently process detection signals relating to different scan lines.

    INSPECTION SYSTEM AND METHOD FOR INSPECTING A SAMPLE BY USING A PLURALITY OF SPACED APART BEAMS

    公开(公告)号:US20170307539A1

    公开(公告)日:2017-10-26

    申请号:US15134278

    申请日:2016-04-20

    IPC分类号: G01N21/88

    摘要: An inspection system that may include an illumination module that may be configured to scan a sample during multiple scan iterations; wherein during each scan iteration the illumination module scans each beam of a plurality of spaced apart beams along a scan line; a mechanical stage that may be configured to move the sample during the multiple scan iterations; a detection module; and a processor; wherein when the inspection system operates in an interlaced mode, the mechanical stage may be configured to move at a first speed thereby preventing a substantial overlap between scan lines obtained during the multiple scan iterations; wherein when the inspection system operates in a non-interlaced mode: the mechanical stage may be configured to move at a second speed that differs from the first speed thereby introducing an overlap between scan lines of different beams that may be obtained during different scan iterations; the detection module may be configured to generate detection signals in response to a detection of radiation emitted from the sample as a result of each scan line; and wherein the processor may be configured to independently process detection signals relating to different scan lines.