Patent ID: 11885608
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. The ellipsometer of claim 1, wherein
the at least one interference fringe is a plurality of interference fringes,
the at least one body of the interference member comprises a polarizing beam splitter that is configured to split each of the two linearly polarized components of light into a first component and a second component,
the first component comprises a component polarized in a first direction inclined with respect to each of the polarization directions by a predetermined angle,
the second component comprises a component polarized in a second direction inclined 90 degrees with respect to the first direction, and
the image detector is configured to detect a first interference fringe, from among the plurality of interference fringes, between the first component of each of the two linearly polarized components of light, and a second interference fringe, from among the plurality of interference fringes, between the second component of each of the two linearly polarized components of light.