Manufacturing method of air bridge, air bridge and electronic device

    公开(公告)号:US11996319B2

    公开(公告)日:2024-05-28

    申请号:US17505294

    申请日:2021-10-19

    CPC classification number: H01L21/764 H01L23/66 H01L29/0649 H01L2223/66

    Abstract: A method for manufacturing an air bridge, an air bridge, and an electronic device are disclosed. The method for manufacturing an air bridge includes: applying a first photoresist layer to a substrate; applying a second photoresist layer to the first photoresist layer; exposing, developing, and fixing the second photoresist layer, to form a patterned structure; etching away the first photoresist layer in a specified area through the patterned structure, to form a structure for blocking a deposition material from diffusing to a periphery on the substrate, the specified area including a projection area formed on the first photoresist layer by a top opening of the patterned structure; and depositing a bridge support structure on a surface of the substrate exposed after the first photoresist layer in the specified area is etched away, and forming an air bridge based on the bridge support structure.

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