PELLICLE FRAME, PELLICLE, METHOD FOR INSPECTING PELLICLE, PELLICLE-ATTACHED EXPOSURE ORIGINAL PLATE AND EXPOSURE METHOD, AND METHOD FOR MANUFACTURING SEMICONDUCTOR OR LIQUID CRYSTAL DISPLAY BOARD

    公开(公告)号:EP4095601A1

    公开(公告)日:2022-11-30

    申请号:EP21744046.0

    申请日:2021-01-15

    发明人: YANASE, Yu

    IPC分类号: G03F1/64

    摘要: Provided are a pellicle frame, a pellicle, a method for inspecting a pellicle, a pellicle-attached exposure original plate and exposure method, and a method for manufacturing a semiconductor or a liquid crystal display board, wherein a frame-shaped pellicle frame (1) having an upper end surface (13) provided with a pellicle film and a lower end surface (14) facing a photomask has, on at least the inner surface (11) thereof, a minimum reflectance of 20% or less at a light source wavelength of 500-1000 nm. The present invention can provide: a pellicle frame in which by lowering the reflectance of the inner surface (11) of the pellicle frame with respect to inspection light, scattered light from the frame can be suppressed as much as possible, and foreign matter inspection can be improved, and at the same time, by lowering the reflectance only with respect to the wavelength of the inspection light, there are few restrictions such as those related to coloring of the pellicle frame; a pellicle using said pellicle frame; and a method for inspecting said pellicle.

    PELLICLE FOR EUV LITHOGRAPHY AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:EP3798728A1

    公开(公告)日:2021-03-31

    申请号:EP19219207.8

    申请日:2019-12-23

    IPC分类号: G03F1/62 G03F1/64

    摘要: Disclosed is a pellicle for extreme ultraviolet (EUV) lithography, with a core layer (10) formed on a pellicle frame (90), the core layer comprising: a first layer (11); and a second layer (12). The first layer includes silicon. The second layer includes one among a metal silicide that has silicon with metal, a silicon compound that has silicon with a light element, and a metal silicide compound that has silicon with metal and a light element. With this, the pellicle is improved in mechanical, thermal and chemical stability with minimum loss of optical characteristics.