Dual port SRAM cell and method of designing the same

    公开(公告)号:US12225702B2

    公开(公告)日:2025-02-11

    申请号:US17957826

    申请日:2022-09-30

    Abstract: A dual-port static random access memory (SRAM) cell is provided. The dual-port SRAM cell includes: P-type active patterns that are spaced apart from one another along a first direction, each of the P-type active patterns extending in a second direction perpendicular to the first direction and including at least one transistor. The P-type active patterns include first through sixth P-type active patterns which are sequentially arranged along the first direction. A first cutting area is provided between the second P-type active pattern and a first boundary of the dual-port SRAM cell that extends along the first direction, and a second cutting area is provided between the fifth P-type active pattern and a second boundary that is opposite to the first boundary and extends along the first direction.

    Semiconductor devices
    12.
    发明授权

    公开(公告)号:US11729963B2

    公开(公告)日:2023-08-15

    申请号:US17331725

    申请日:2021-05-27

    CPC classification number: H10B12/30 H01L29/4236

    Abstract: A semiconductor device includes a substrate including an isolation layer pattern and an active pattern, a buffer insulation layer pattern on the substrate, a polysilicon structure on the active pattern and the buffer insulation layer pattern, the polysilicon structure contacting a portion of the active pattern, and the polysilicon structure extending in a direction parallel to an upper surface of the substrate, a first diffusion barrier layer pattern on an upper surface of the polysilicon structure, the first diffusion barrier layer pattern including polysilicon doped with at least carbon, a second diffusion barrier layer pattern on the first diffusion barrier layer pattern, the second diffusion barrier layer pattern including at least a metal, and a first metal pattern and a first capping layer pattern stacked on the second diffusion barrier layer pattern.

    Semiconductor memory device using different crystallinities in storage node contact and a method of manufacturing the same

    公开(公告)号:US11631677B2

    公开(公告)日:2023-04-18

    申请号:US17358055

    申请日:2021-06-25

    Abstract: A semiconductor memory device includes a device isolation pattern on a substrate to define an active region, a word line in the substrate, to intersect the active region, a first dopant region in the active region as at a first side of the word line, a second dopant region in the active region at a second side of the word line, a bit line connected to the first dopant region and intersecting the word line, a bit line contact connecting the bit line to the first dopant region, a landing pad on the second dopant region, and a storage node contact connecting the landing pad to the second dopant region, the storage node contact including a first portion in contact with the second dopant region, the first portion including a single-crystal silicon, and a second portion on the first portion and including a poly-silicon.

    DUAL PORT SRAM CELL AND METHOD OF DESIGNING THE SAME

    公开(公告)号:US20230113482A1

    公开(公告)日:2023-04-13

    申请号:US17957826

    申请日:2022-09-30

    Abstract: A dual-port static random access memory (SRAM) cell is provided. The dual-port SRAM cell includes: P-type active patterns that are spaced apart from one another along a first direction, each of the P-type active patterns extending in a second direction perpendicular to the first direction and including at least one transistor. The P-type active patterns include first through sixth P-type active patterns which are sequentially arranged along the first direction. A first cutting area is provided between the second P-type active pattern and a first boundary of the dual-port SRAM cell that extends along the first direction, and a second cutting area is provided between the fifth P-type active pattern and a second boundary that is opposite to the first boundary and extends along the first direction.

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