PHOTOMASK AND METHOD FOR FABRICATING INTEGRATED CIRCUIT
    41.
    发明申请
    PHOTOMASK AND METHOD FOR FABRICATING INTEGRATED CIRCUIT 有权
    光电子和制造集成电路的方法

    公开(公告)号:US20160062226A1

    公开(公告)日:2016-03-03

    申请号:US14471880

    申请日:2014-08-28

    CPC classification number: G03F1/42 G03F1/36 G03F7/038 G06F17/5072

    Abstract: A photomask and method for fabricating an integrated circuit is provided. The photomask includes a plurality of main features, enclosed in at least one first region and at least one second region, wherein the first region comprises single the main feature and the second region comprises multiple the main features; and a plurality of assistant features disposed between the first region and the second region, or between the second regions. The photomask enhances the accuracy of the critical dimension and facilitate fabricating an integrated circuit.

    Abstract translation: 提供一种用于制造集成电路的光掩模和方法。 光掩模包括封闭在至少一个第一区域和至少一个第二区域中的多个主要特征,其中第一区域包括单个主要特征,而第二区域包括多个主要特征; 以及设置在第一区域和第二区域之间或第二区域之间的多个辅助特征。 光掩模提高了临界尺寸的精度,并有助于制造集成电路。

    METHOD OF OPERATING SEMICONDUCTOR APPARATUS

    公开(公告)号:US20210382399A1

    公开(公告)日:2021-12-09

    申请号:US17411571

    申请日:2021-08-25

    Abstract: A method of operating a semiconductor apparatus includes generating an electric field in peripheral areas of a first covering structure and a second covering structure; causing a photomask to move to a position between the first and second covering structures such that the photomask at least partially vertically overlaps the first and second covering structures and such that particles attached to the photomask are attracted to the first and second covering structures by the electric field; and irradiating the photomask with light through light transmission regions of the first and second covering structures.

    METHOD OF MASK DATA SYNTHESIS AND MASK MAKING

    公开(公告)号:US20210191254A1

    公开(公告)日:2021-06-24

    申请号:US17195469

    申请日:2021-03-08

    Abstract: A method for mask data synthesis and mask making includes calibrating an optical proximity correction (OPC) model by adjusting a plurality of parameters including a first parameter and a second parameter, wherein the first parameter indicates a long-range effect caused by an electron-beam lithography tool for making a mask used to manufacture a structure, and the second parameter indicates a geometric feature of a structure or a manufacturing process to make the structure, generating a device layout, calculating a first grid pattern density map of the device layout, generating a long-range correction map, at least based on the calibrated OPC model and the first grid pattern density map of the device layout, and performing an OPC to generate a corrected mask layout, at least based on the generated long-range correction map and the calibrated OPC model.

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