SELF ALIGNED LITHO ETCH PROCESS PATTERNING METHOD

    公开(公告)号:US20210249267A1

    公开(公告)日:2021-08-12

    申请号:US17240692

    申请日:2021-04-26

    Abstract: A method of defining a pattern includes forming a plurality of cut shapes and a first plurality of openings within a first layer of a multi-layer hard mask to expose first portions of the second layer. A plurality of etch stops is formed by implanting an etch rate modifying species in a portion of the plurality of cut shapes. The first layer is directionally etched at the plurality of cut shapes such that the plurality of etch stops remain. A spacer layer is formed on the first layer and the first portions. A second plurality of openings is formed within the spacer layer to expose second portions of the second layer. The spacer layer is directionally etched to remove the spacer layer from sidewalls of the plurality of etch stops. Portions of the second layer exposed through the first plurality of openings and the second plurality of openings are etched.

    METHOD OF PATTERNING
    5.
    发明申请

    公开(公告)号:US20190164772A1

    公开(公告)日:2019-05-30

    申请号:US15967100

    申请日:2018-04-30

    Abstract: A method of reducing corner rounding during patterning of a substrate to form a prescribed pattern comprising a corner includes dividing the pattern into a first pattern and a second pattern, the first pattern forming a first edge of the corner and the second pattern forming a second edge of the corner. At least a portion of the second pattern overlaps the first pattern such that the first edge intersects with the second edge to form a corner of the prescribed pattern. The method further includes forming the first pattern in a first mask layer disposed on a substrate to expose the substrate and forming the second pattern in the first mask layer to expose the substrate. The substrate exposed through the first mask layer is then etched to obtain the pattern.

    INTEGRATED CIRCUIT, SYSTEM, AND METHOD OF FORMING THE SAME

    公开(公告)号:US20210064806A1

    公开(公告)日:2021-03-04

    申请号:US16850849

    申请日:2020-04-16

    Abstract: A method of generating an integrated circuit (IC) layout diagram includes arranging first conductive feature layout patterns in a cell region. The first conductive feature layout patterns extend in a first direction, and the cell region has opposite first and second cell boundaries extending in a second direction. Second conductive feature layout patterns are arranged in the cell region and extending in the first direction. The first and second conductive feature layout patterns are alternately arranged. First cut feature layout patterns are arranged on the first cell boundary of the cell region and on ends of the first conductive feature layout patterns. One of the first cut feature layout patterns is offset from another one of the first cut feature layout patterns in the first direction. The IC layout diagram including the first and second conductive feature layout patterns and the first cut feature layout patterns is generated.

    METHOD FOR FORMING SEMICONDUCTOR DEVICE STRUCTURE

    公开(公告)号:US20200066523A1

    公开(公告)日:2020-02-27

    申请号:US16669065

    申请日:2019-10-30

    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first layer over a substrate. The first layer has a trench. The method includes forming first spacers over inner walls of the trench. The method includes removing a portion of the first spacers. The method includes forming a filling layer into the trench to cover the first spacers. The filling layer and the first spacers together form a strip structure. The method includes removing the first layer. The method includes forming second spacers over two opposite first sidewalls of the strip structure.

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