Extreme ultraviolet (EUV) pod having marks

    公开(公告)号:US09817306B2

    公开(公告)日:2017-11-14

    申请号:US14862334

    申请日:2015-09-23

    CPC classification number: G03F1/22 G03F1/42 G03F1/66

    Abstract: The present invention relates to an EUV pod having marks, which comprises a mask pod and one or more mark disposed on the mask pod. One or more sensor of a processing machine is used for detecting the one or more mark. By including the one or more mark, the surface roughness of one or more region of the mask pod detectable by the one or more sensor can be altered. The one or more sensor emits light to the mask pod, which reflects the light to the one or more sensor. The one or more sensor receives the reflection light from the mask pod and judges if the voltage generated by the reflection light falls within the reflection ranges of the mark. Thereby, whether the one or more sensor corresponds to the one or more make can be confirmed.

    Gas purifier for wafer substrate accommodating unit

    公开(公告)号:US10101047B2

    公开(公告)日:2018-10-16

    申请号:US13834796

    申请日:2013-03-15

    Abstract: A gas purifier to be applied on a wafer substrate accommodating unit with an inlet hole includes an outer tube and an inner tube. The outer tube is disposed on the wafer substrate accommodating unit and has a plurality of first gas filling apertures. One end of the inner tube is a closed end and the other end is an open end. The inner tube has a plurality of second gas filling apertures, and its open end is interconnected with the inlet hole. The inner tube is movably disposed within the outer tube between a first operating position and second operating position. The second gas filling apertures are correspondingly configured to an inner wall of the outer tube when the inner tube is at a first operating position, and interconnected with the first gas filling apertures when the inner tube is at a second operating position.

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