Layout pattern of static random-access memory

    公开(公告)号:US20250056781A1

    公开(公告)日:2025-02-13

    申请号:US18367471

    申请日:2023-09-13

    Abstract: A layout pattern of static random-access memory (SRAM) includes a substrate, a plurality of diffusion regions and a plurality of gate structures are located on the substrate, each diffusion region includes a first diffusion region, a second diffusion region, a third diffusion region, a fourth diffusion region, a fifth diffusion region, a sixth diffusion region, a seventh diffusion region and an eighth diffusion region, and each gate structure spans the plurality of diffusion regions. The plurality of gate structures include a first gate structure, the first gate structure includes a first L-shaped portion, which spans the first diffusion region and the fifth diffusion region and forms a first pull-down transistor (PD1), the first diffusion region is adjacent to and in direct contact with the fifth diffusion region.

    Static random access memory (SRAM) and method for fabricating the same

    公开(公告)号:US11552052B2

    公开(公告)日:2023-01-10

    申请号:US16848848

    申请日:2020-04-15

    Abstract: A semiconductor device includes a first metal-oxide semiconductor (MOS) transistor on a first substrate, a first interlayer dielectric (ILD) layer on the first MOS transistor, a second substrate on the first ILD layer, and a second MOS transistor on a second substrate. Preferably, the semiconductor device includes a static random access memory (SRAM) and the SRAM includes a first pull-up device, a second pull-up device, a first pull-down device, a second pull-down device, a first pass-gate device, a second pass-gate device, a read port pull-down device, and a read port pass-gate device, in which the read port pull-down device includes the first MOS transistor and the read port pass-gate device includes the second MOS transistor.

    Layout pattern for static random access memory

    公开(公告)号:US10541244B1

    公开(公告)日:2020-01-21

    申请号:US16121609

    申请日:2018-09-04

    Abstract: The present invention provides a layout pattern of a static random access memory (SRAM), comprising at least two inverters coupled to each other for storing data, each inverter comprising an L-shaped gate structure on a substrate, the L-shaped gate structure includes a first portion arranged along a first direction and a second portion aligned along a second direction, wherein the first portion crosses a first diffusion region to form a pull-up device, and the first portion crosses a second diffusion region and a third diffusion region to form a pull-down device, and each of the inverters includes a local interconnection layer, crossing the second diffusion region and the third diffusion region.

    Random access memory with metal bridges connecting adjacent read transistors

    公开(公告)号:US12205631B2

    公开(公告)日:2025-01-21

    申请号:US18070484

    申请日:2022-11-29

    Abstract: A random access memory, including a write transistor with a gate electrically connected to a write word line and a drain electrically connected to a write bit line, a first read transistor and a second read transistor with gates electrically connected to a source of the write transistor to form a storage node, drains electrically connected to a read bit line and a common source electrically connected to a read word line so that the first read transistor and a second read transistor are in parallel connection, and a capacitor electrically connected to the storage node.

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