Method for manufacturing a membrane assembly

    公开(公告)号:US10712657B2

    公开(公告)日:2020-07-14

    申请号:US15743275

    申请日:2016-07-04

    Abstract: A method for manufacturing a membrane assembly for EUV lithography, the method including: providing a stack having a planar substrate and at least one membrane layer, wherein the planar substrate includes an inner region and a border region around the inner region; and selectively removing the inner region of the planar substrate. The membrane assembly includes: a membrane formed from the at least one membrane layer; and a border holding the membrane, the border formed from the border region of the planar substrate. The stack is provided with a mechanical protection material configured to mechanically protect the border region during the selectively removing the inner region of the planar substrate.

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