Method for manufacturing a membrane assembly

    公开(公告)号:US10852633B2

    公开(公告)日:2020-12-01

    申请号:US15771634

    申请日:2016-10-25

    Abstract: A method for manufacturing a membrane assembly for EUV lithography, the method including: providing a stack including a membrane layer between a supporting substrate and an attachment substrate, wherein the supporting substrate includes an inner region and a border region; processing the stack, including selectively removing the inner region of the supporting substrate, to form a membrane assembly comprising: a membrane formed from at least the membrane layer; and a support holding the membrane, the support formed at least partially from the border region of the supporting substrate. The attachment substrate can be bonded to the rest of the stack.

    Method of manufacturing a membrane assembly

    公开(公告)号:US12001135B2

    公开(公告)日:2024-06-04

    申请号:US17413845

    申请日:2019-12-16

    CPC classification number: G03F1/64 G03F1/62

    Abstract: A method of manufacturing a membrane assembly for EUV lithography, wherein a layer which forms at least part of a pellicle membrane is provided after one or more etching steps which define a pellicle border holding the pellicle membrane. Also provided is a pellicle substrate, the substrate including: a stack having a front face and back face, wherein one or more layers on the back face of the stack have been selectively removed to define a pellicle border region for holding the pellicle membrane before the layer which forms at least part of a pellicle membrane has been provided.

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