SEMICONDUCTOR DEVICE
    2.
    发明申请

    公开(公告)号:US20190067294A1

    公开(公告)日:2019-02-28

    申请号:US15871957

    申请日:2018-01-15

    Abstract: A first bit line structure is disposed between a first contact structure and a second contact structure. A first air spacer is interposed between the first contact structure and the first bit line structure. A first separation space is connected to an air entrance of the first air spacer and interposed between the first contact structure and the first bit line structure. A cover insulating pattern with a gap portion is interposed between the first contact structure and the second contact structure. The gap portion has a downwardly-decreasing width. An air capping pattern covers the cover insulating pattern to seal the first separation space.

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