METHOD FOR FORMING A FINE PATTERN
    2.
    发明申请

    公开(公告)号:US20190267246A1

    公开(公告)日:2019-08-29

    申请号:US16263759

    申请日:2019-01-31

    Abstract: A method for forming a fine pattern includes forming line patterns and a connection pattern on a semiconductor substrate, the line patterns extending in a first direction and spaced apart from each other in a second direction intersecting the first direction, and the connection pattern connecting portions of the line patterns adjacent to each other in the second direction, and performing an ion beam etching process on the connection pattern. The ion beam etching process provides an ion beam in an incident direction parallel to a plane defined by the first direction and a third direction perpendicular to a top surface of the semiconductor substrate, and the incident direction of the ion beam is not perpendicular to the top surface of the semiconductor substrate.

    Semiconductor device
    4.
    发明授权

    公开(公告)号:US10950541B2

    公开(公告)日:2021-03-16

    申请号:US16441042

    申请日:2019-06-14

    Abstract: A semiconductor device includes a substrate, a first lower wiring line on the substrate, a first insulation layer on the first lower wiring line, a first dielectric barrier layer and a first etch stop layer sequentially stacked on the first insulation layer, a second insulation layer on the first etch stop layer, a first upper wiring line extending through the second insulation layer, the first etch stop layer, and the first dielectric barrier layer, and a first conductive via in the first insulation layer and electrically connecting the first lower wiring line and the first upper wiring line. An upper surface of the first conductive via protrudes above a lower surface of the first upper wiring line.

    Method for forming a fine pattern

    公开(公告)号:US10600653B2

    公开(公告)日:2020-03-24

    申请号:US16263759

    申请日:2019-01-31

    Abstract: A method for forming a fine pattern includes forming line patterns and a connection pattern on a semiconductor substrate, the line patterns extending in a first direction and spaced apart from each other in a second direction intersecting the first direction, and the connection pattern connecting portions of the line patterns adjacent to each other in the second direction, and performing an ion beam etching process on the connection pattern. The ion beam etching process provides an ion beam in an incident direction parallel to a plane defined by the first direction and a third direction perpendicular to a top surface of the semiconductor substrate, and the incident direction of the ion beam is not perpendicular to the top surface of the semiconductor substrate.

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