Method of manufacturing semiconductor device

    公开(公告)号:US11765880B2

    公开(公告)日:2023-09-19

    申请号:US17245912

    申请日:2021-04-30

    CPC classification number: H10B12/01

    Abstract: A method of manufacturing a semiconductor device includes: forming a lower structure that includes a substrate and conductive lines on the substrate, within a chip region and an edge region of the lower structure; forming data storage structures on the chip region of the lower structure; forming dummy structures on the edge region of the lower structure; forming an interlayer insulating layer covering the data storage structures and the dummy structures on the lower structure, the interlayer insulating layer including high step portions and low step portions, an upper end of the low step portions being lower than an upper end of the high step portions; and planarizing the interlayer insulating layer.

    SEMICONDUCTOR DEVICE
    42.
    发明申请

    公开(公告)号:US20230030176A1

    公开(公告)日:2023-02-02

    申请号:US17662316

    申请日:2022-05-06

    Abstract: A semiconductor device may include a substrate including a cell region and a peripheral region, lower electrodes on the cell region of the substrate, a dielectric layer on surfaces of the lower electrodes, a silicon germanium layer on the dielectric layer, a metal plate pattern and a polishing stop layer pattern stacked on the silicon germanium layer, and upper contact plugs physically contacting an upper surface of the silicon germanium layer. The upper contact plugs may have an upper surface farther away from the substrate than an upper surface of the polishing stop layer pattern. The upper contact plugs may be spaced apart from the metal plate pattern and the polishing stop layer pattern.

    SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING THE SAME

    公开(公告)号:US20220344345A1

    公开(公告)日:2022-10-27

    申请号:US17859247

    申请日:2022-07-07

    Abstract: A semiconductor device includes a substrate including first and second region, a bit line structure on the first region, key structures on the second region, each key structure having an upper surface substantially coplanar with an upper surface of the bit line structure, a first trench disposed between two adjacent key structures spaced apart from each other in a first direction, a filling pattern in a lower portion of the first trench, the filling pattern having a flat upper surface and including a first conductive material, and a first conductive structure on the flat upper surface of the filling pattern, an upper sidewall of the first trench, and the upper surface of each of the plurality of key structures, the first conductive structure including a second conductive material.

    METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

    公开(公告)号:US20220115379A1

    公开(公告)日:2022-04-14

    申请号:US17245912

    申请日:2021-04-30

    Abstract: A method of manufacturing a semiconductor device includes: forming a lower structure that includes a substrate and conductive lines on the substrate, within a chip region and an edge region of the lower structure; forming data storage structures on the chip region of the lower structure; forming dummy structures on the edge region of the lower structure; forming an interlayer insulating layer covering the data storage structures and the dummy structures on the lower structure, the interlayer insulating layer including high step portions and low step portions, an upper end of the low step portions being lower than an upper end of the high step portions; and planarizing the interlayer insulating layer.

    Semiconductor device and a fabrication method thereof

    公开(公告)号:US11183501B2

    公开(公告)日:2021-11-23

    申请号:US16819920

    申请日:2020-03-16

    Abstract: A semiconductor device including a substrate having a cell region and a peripheral region; a cell gate structure disposed on the cell region; a first impurity region and a second impurity region, arranged on first and second sides of the cell gate structure in the cell region; a bit line structure disposed on the cell gate structure and connected to the first impurity region; a peripheral gate structure disposed on the peripheral region; a peripheral capping layer disposed on the peripheral region, covering the peripheral gate structure, and having an upper surface at substantially the same level as an upper end of the bit line structure; and a cell contact structure disposed on the second impurity region, and having a conductive barrier and a contact material layer on the conductive barrier, wherein the conductive barrier covers the upper end of the bit line structure.

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