Patent ID: 11927545
Assignee: CAMTEK LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 24:
25. The inspection tool system of claim 1, wherein said first illumination setup is capable of facing a multi-tier stack edge and is configured and operable to generate a first illumination radiation along a first illumination axis and to direct at least a portion of the first illumination radiation towards an edge and bevel region of the multi-tier stack; and said second illumination setup is configured and operable to generate a second illumination radiation along a second illumination axis and to direct at least a portion of the second illumination radiation in a direction substantially parallel to the multi-tier stack plane toward said imaging sensor, wherein at least a portion of the second illumination radiation is configured for interacting with at least a portion of the multi-tier edge and bevel region, wherein said imaging sensor unit is configured and operable to collect a second illumination radiation directed towards said imaging sensor unit by said second illumination setup, as well as a reflected illumination radiation reflected from the multi-tier edge and bevel region; such that the sensing data is indicative of a boundary between the multi-tier plane and that of the multi-tier edge and bevel region.