Non-volatile memory device having vertical structure and method of manufacturing the same

    公开(公告)号:US09899408B2

    公开(公告)日:2018-02-20

    申请号:US15189205

    申请日:2016-06-22

    CPC classification number: H01L27/11582 H01L27/1157

    Abstract: A non-volatile memory device having a vertical structure includes: a first interlayer insulating layer on a substrate; a first gate electrode disposed on the first interlayer insulating layer; second interlayer insulating layers and second gate electrodes alternately stacked on the first gate electrode; an opening portion penetrating the first gate electrode, the second interlayer insulating layers, and the second gate electrodes and exposing the first interlayer insulating layer; a gate dielectric layer covering side walls and a bottom surface of the opening portion; and a channel region formed on the gate dielectric layer, and penetrating a bottom surface of the gate dielectric layer and the first interlayer insulating layer and thus electrically connected to the substrate, wherein a separation distance between side walls of the gate dielectric layer in a region which contacts the first gate electrode is greater than that in a region which contacts any one of the second gate electrodes.

    Integrated circuit devices and methods of manufacturing the same

    公开(公告)号:US11189632B2

    公开(公告)日:2021-11-30

    申请号:US16675273

    申请日:2019-11-06

    Abstract: Integrated circuit devices may include a plurality of word line structures and a plurality of insulating films that are stacked alternately. Sides of the plurality of word line structures and the plurality of insulating films define a side of a channel hole extending through the plurality of word line structures and the plurality of insulating films. The devices may also include a blocking dielectric film on the side of the channel hole, and a plurality of charge storage films on the blocking dielectric film and on the sides of the plurality of word line structures, respectively. Each of the plurality of charge storage films may include a first charge storage film and a second charge storage film sequentially stacked on a respective one of the sides of the plurality of word line structures. A surface of the second charge storage film may include a recess in a middle portion thereof.

    Non-volatile memory device
    5.
    发明授权

    公开(公告)号:US10199389B2

    公开(公告)日:2019-02-05

    申请号:US15485334

    申请日:2017-04-12

    Abstract: A non-volatile memory device is provided. The non-volatile memory device includes a channel structure that is located on a substrate and extends perpendicularly to the substrate, a conductive pattern that extends perpendicularly to the substrate and is spaced apart from the channel structure, an electrode structure that is located between the channel structure and the conductive pattern, and comprises a plurality of gate patterns and a plurality of insulation patterns that are alternately laminated. An insulating layer that contacts with a top surface of the conductive pattern is formed along side surfaces of the electrode structure. The top surface of the conductive pattern is formed to be lower than the top surface of the channel structure.

    Non-volatile memory device
    6.
    发明授权

    公开(公告)号:US09646984B2

    公开(公告)日:2017-05-09

    申请号:US15264902

    申请日:2016-09-14

    CPC classification number: H01L27/1157 H01L27/11582

    Abstract: A non-volatile memory device is provided. The non-volatile memory device includes a channel structure that is located on a substrate and extends perpendicularly to the substrate, a conductive pattern that extends perpendicularly to the substrate and is spaced apart from the channel structure, an electrode structure that is located between the channel structure and the conductive pattern, and comprises a plurality of gate patterns and a plurality of insulation patterns that are alternately laminated. An insulating layer that contacts with a top surface of the conductive pattern is formed along side surfaces of the electrode structure. The top surface of the conductive pattern is formed to be lower than the top surface of the channel structure.

    Integrated circuit device
    8.
    发明授权

    公开(公告)号:US11074981B2

    公开(公告)日:2021-07-27

    申请号:US17092896

    申请日:2020-11-09

    Abstract: An integrated circuit device includes channel structures extending from a substrate in a vertical direction, memory cell strings disposed along the plurality of channel structures, gate lines spaced apart from one another in the vertical direction and including erase control lines and string selection lines, and driving transistors including erase control driving transistors connected to the erase control lines and string selection driving transistors connected to the string selection lines.

    Integrated circuit device
    9.
    发明授权

    公开(公告)号:US10832781B2

    公开(公告)日:2020-11-10

    申请号:US16550591

    申请日:2019-08-26

    Abstract: An integrated circuit device includes channel structures extending from a substrate in a vertical direction, memory cell strings disposed along the plurality of channel structures, gate lines spaced apart from one another in the vertical direction and including erase control lines and string selection lines, and driving transistors including erase control driving transistors connected to the erase control lines and string selection driving transistors connected to the string selection lines.

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