EUV PHOTO MASKS AND MANUFACTURING METHOD THEREOF

    公开(公告)号:US20210397075A1

    公开(公告)日:2021-12-23

    申请号:US17108906

    申请日:2020-12-01

    Inventor: Yun-Yue LIN

    Abstract: A reflective mask includes a substrate, a reflective multilayer disposed over the substrate, a capping layer disposed over the reflective multilayer, an intermediate layer disposed over the capping layer, an absorber layer disposed over the intermediate layer, and a cover layer disposed over the absorber layer. The absorber layer includes one or more layers of an Ir based material, a Pt based material or a Ru based material.

    LITHOGRAPHY MASK AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20190101818A1

    公开(公告)日:2019-04-04

    申请号:US15965146

    申请日:2018-04-27

    Inventor: Yun-Yue LIN

    Abstract: A method of manufacturing a phase shift mask includes forming a doped silicon nitride layer on a mask substrate and forming an opaque layer on the doped silicon nitride layer. The opaque layer and doped silicon nitride layer are then patterned to expose portions of the mask substrate to form a plurality of mask features comprising the opaque layer disposed on the doped silicon nitride layer. Portions of the opaque layer are then removed from some of the mask features.

    ROBUST, HIGH TRANSMISSION PELLICLE FOR EXTREME ULTRAVIOLET LITHOGRAPHY SYSTEMS

    公开(公告)号:US20220252986A1

    公开(公告)日:2022-08-11

    申请号:US17728945

    申请日:2022-04-25

    Inventor: Yun-Yue LIN

    Abstract: A robust, high-transmission pellicle for extreme ultraviolet lithography systems is disclosed. In one example, the present disclosure provides a pellicle that includes a membrane and a frame supporting the membrane. The membrane may be formed from at least one of a transparent carbon-based film and a transparent silicon based film. The at least one of the transparent carbon-based film and the transparent silicon based film may further be coated with a protective shell. The frame may include at least one aperture to allow for a flow of air through a portion of the pellicle.

    MASK AND METHOD FOR FORMING THE SAME

    公开(公告)号:US20210018828A1

    公开(公告)日:2021-01-21

    申请号:US16512795

    申请日:2019-07-16

    Inventor: Yun-Yue LIN

    Abstract: A method of forming a mask includes forming a reflective multilayer over a substrate; forming a capping layer over the reflective multilayer, in which the capping layer includes a ruthenium-containing material and a low carbon solubility material that has a carbon solubility lower than a carbon solubility of the ruthenium-containing material; forming an absorption layer over the capping layer; and etching the absorption layer until exposing the capping layer.

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