Method for forming semiconductor structure

    公开(公告)号:US12222653B2

    公开(公告)日:2025-02-11

    申请号:US17320754

    申请日:2021-05-14

    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a resist layer over a material layer, the resist layer includes an inorganic material. The inorganic material includes a plurality of metallic cores and a plurality of first linkers bonded to the metallic cores. The method includes forming a modified layer over the resist layer, and the modified layer includes an auxiliary. The method includes performing an exposure process on the modified layer and the resist layer, and removing a portion of the modified layer and a first portion of the resist layer by a first developer. The first developer includes a ketone-based solvent having a substituted or unsubstituted C6-C7 cyclic ketone, an ester-based solvent having a formula (b), or a combination thereof.

    Pellicle assembly and method of making same

    公开(公告)号:US12050399B2

    公开(公告)日:2024-07-30

    申请号:US17318315

    申请日:2021-05-12

    CPC classification number: G03F1/64 H01L21/0337

    Abstract: A method for preparing a pellicle assembly includes reducing the thickness of one or more initial membrane(s) to obtain a pellicle membrane. The pellicle membrane is then affixed to a mounting frame to obtain the pellicle assembly. Compressive pressure can be applied to reduce the thickness of the initial membrane(s). Alternatively, the thickness can be reduced by stretching the initial membrane(s) to obtain an extended membrane. A mounting frame is then affixed to a portion of the extended membrane. The mounting frame and the portion of the extended membrane are then separated from the remainder of the extended membrane to obtain the pellicle assembly. The resulting pellicle assemblies include a pellicle membrane that is attached to a mounting frame. The pellicle membrane can be formed from nanotubes and has a combination of high transmittance, low deflection, and small pore size.

    PELLICLE ASSEMBLY AND METHOD OF MAKING SAME

    公开(公告)号:US20220365421A1

    公开(公告)日:2022-11-17

    申请号:US17318315

    申请日:2021-05-12

    Abstract: A method for preparing a pellicle assembly includes reducing the thickness of one or more initial membrane(s) to obtain a pellicle membrane. The pellicle membrane is then affixed to a mounting frame to obtain the pellicle assembly. Compressive pressure can be applied to reduce the thickness of the initial membrane(s). Alternatively, the thickness can be reduced by stretching the initial membrane(s) to obtain an extended membrane. A mounting frame is then affixed to a portion of the extended membrane. The mounting frame and the portion of the extended membrane are then separated from the remainder of the extended membrane to obtain the pellicle assembly. The resulting pellicle assemblies include a pellicle membrane that is attached to a mounting frame. The pellicle membrane can be formed from nanotubes and has a combination of high transmittance, low deflection, and small pore size.

    Apparatus and method for generating an electromagnetic radiation

    公开(公告)号:US11153957B2

    公开(公告)日:2021-10-19

    申请号:US16505156

    申请日:2019-07-08

    Abstract: An electromagnetic radiation generation apparatus includes a collector, a gas supplier and a gas pipeline. The collector has a reflection surface configured to reflect an electromagnetic radiation. The collector includes a bottom portion, a perimeter portion, and a middle portion between the bottom portion and the perimeter portion. The middle portion of the collector includes a plurality of openings. The gas supplier is configured to provide a buffer gas. The gas pipeline is in communication with the gas supplier and the collector, and configured to purge the buffer gas through the openings of the middle portion to form a gas protection layer near the reflection surface of the collector. The openings of the middle portion include a plurality of holes arranged in an array including a plurality of rows of holes, or a plurality of concentric gaps.

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