SEMICONDUCTOR DEVICES
    22.
    发明申请

    公开(公告)号:US20250169064A1

    公开(公告)日:2025-05-22

    申请号:US18735338

    申请日:2024-06-06

    Abstract: A semiconductor device includes a bit line on a substrate, a channel on the bit line, a first gate structure on a first sidewall of the channel, a contact structure between the bit line and the channel, the contact structure contacting the bit line and the channel, the contact structure including: a first contact including a semiconductor material doped with first impurities, the first impurities including a first diffusion coefficient, and a second contact on the first contact, the second contact contacting the first contact, the second contact including a semiconductor material doped with second impurities, the second impurities including a second diffusion coefficient, the second diffusion coefficient being less than the first diffusion coefficient, and a capacitor on and electrically connected to the channel.

    METHOD OF MANUFACTURING SEMICONDUCTOR MEMORY DEVICE

    公开(公告)号:US20250126771A1

    公开(公告)日:2025-04-17

    申请号:US18747624

    申请日:2024-06-19

    Inventor: Jinbum Kim

    Abstract: A method of manufacturing a semiconductor memory device includes forming a metal seed pattern having a plurality of openings on a substrate, forming a metal silicide pattern from the substrate and the metal seed pattern, growing a single crystal semiconductor pattern in a vertical direction at an interface between the substrate and the metal silicide pattern where the vertical direction is perpendicular to the substrate, and growing a sacrificial semiconductor pattern in the vertical direction at an interface between the metal silicide pattern and the single crystal semiconductor pattern.

    Semiconductor device including air gap regions below source/drain regions

    公开(公告)号:US12268022B2

    公开(公告)日:2025-04-01

    申请号:US17714695

    申请日:2022-04-06

    Abstract: A semiconductor device includes a substrate having an active region extending in a first direction; a gate structure disposed on the substrate, intersecting the active region, and extending in a second direction; channel layers disposed on the active region to be spaced apart from each other in a third direction, perpendicular to an upper surface of the substrate, and to be surrounded by the gate structure; source/drain regions disposed on both sides of the gate structure and connected to the channel layers; air gap regions located between the source/drain regions and the active region and spaced apart from each other in the third direction; and semiconductor layers alternately disposed with the air gap regions in the third direction and defining the air gap regions, wherein lower ends of the source/drain regions are located on a level lower than an uppermost air gap region.

    Semiconductor device including active region and gate structure

    公开(公告)号:US11990549B2

    公开(公告)日:2024-05-21

    申请号:US17716005

    申请日:2022-04-08

    Abstract: A semiconductor device includes an active region extending from a substrate in a vertical direction, source/drain regions spaced apart from each other on the active region, a fin structure between the source/drain regions on the active region, the fin structure including a lower semiconductor region on the active region, a stack structure having alternating first and second semiconductor layers on the lower semiconductor region, a side surface of at least one of the first semiconductor layers being recessed, and a semiconductor capping layer on the stack structure, an isolation layer covering a side surface of the active region, a gate structure overlapping the fin structure and covering upper and side surfaces of the fin structure, the semiconductor capping layer being between the gate structure and each of the lower semiconductor region and stack structure, and contact plugs electrically connected to the source/drain regions.

    SEMICONDUCTOR DEVICES
    29.
    发明公开

    公开(公告)号:US20240145542A1

    公开(公告)日:2024-05-02

    申请号:US18325412

    申请日:2023-05-30

    Abstract: A semiconductor device includes an active pattern disposed on a substrate; a gate structure disposed on the active pattern; channels disposed on the substrate and that are spaced apart from each other in a vertical direction substantially perpendicular to an upper surface of the substrate; a first epitaxial layer disposed on a portion of the active pattern adjacent to the gate structure; and a contact plug disposed on the first epitaxial layer. The contact plug includes a lower portion; a middle portion disposed on the lower portion, where the middle portion has a width that increases from a bottom to a top thereof along the vertical direction; and an upper portion disposed on the middle portion.

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