Semiconductor device including a blocking pattern in an interconnection line

    公开(公告)号:US10892185B2

    公开(公告)日:2021-01-12

    申请号:US16511019

    申请日:2019-07-15

    Abstract: A semiconductor device including a first interconnection line having a first end and extending in a first direction; a first blocking pattern at the first end of the first interconnection line and adjacent to the first interconnection line in the first direction; a second interconnection line spaced apart from the first interconnection line in a second direction crossing the first direction and extending in the first direction, the second interconnection line having a second end; and a second blocking pattern at the second end of the second interconnection line and adjacent to the second interconnection line in the first direction, wherein a width of the first blocking pattern in the first direction is different from a width of the second blocking pattern in the first direction.

    Semiconductor device and method of fabricating the same

    公开(公告)号:US11551978B2

    公开(公告)日:2023-01-10

    申请号:US17089822

    申请日:2020-11-05

    Abstract: Disclosed are semiconductor devices and methods of fabricating the same. The method comprises sequentially stacking a lower sacrificial layer and an upper sacrificial layer on a substrate, patterning the upper sacrificial layer to form a first upper sacrificial pattern and a second upper sacrificial pattern, forming a first upper spacer and a second upper spacer on sidewalls of the first upper sacrificial pattern and a second upper sacrificial pattern, respectively, using the first and second upper spacers as an etching mask to pattern the lower sacrificial layer to form a plurality of lower sacrificial patterns, forming a plurality of lower spacers on sidewalls of the lower sacrificial patterns, and using the lower spacers as an etching mask to pattern the substrate. The first and second upper spacers are connected to each other.

    Semiconductor device and method of fabricating the same

    公开(公告)号:US10861747B2

    公开(公告)日:2020-12-08

    申请号:US16439860

    申请日:2019-06-13

    Abstract: Disclosed are semiconductor devices and methods of fabricating the same. The method comprises sequentially stacking a lower sacrificial layer and an upper sacrificial layer on a substrate, patterning the upper sacrificial layer to form a first upper sacrificial pattern and a second upper sacrificial pattern, forming a first upper spacer and a second upper spacer on sidewalls of the first upper sacrificial pattern and a second upper sacrificial pattern, respectively, using the first and second upper spacers as an etching mask to pattern the lower sacrificial layer to form a plurality of lower sacrificial patterns, forming a plurality of lower spacers on sidewalls of the lower sacrificial patterns, and using the lower spacers as an etching mask to pattern the substrate. The first and second upper spacers are connected to each other.

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