Four-poly-pitch SRAM cell with backside metal tracks

    公开(公告)号:US11527539B2

    公开(公告)日:2022-12-13

    申请号:US16888269

    申请日:2020-05-29

    Abstract: A semiconductor structure includes an SRAM cell that includes first and second pull-up (PU) transistors, first and second pull-down (PD) transistors, first and second pass-gate (PG) transistors, and bit line (BL) conductors. The first PU and the first PD transistors form a first inverter. The second PU and the second PD transistors form a second inverter. The first and the second inverters are cross-coupled to form two storage nodes that are coupled to the BL conductors through the first and the second PG transistors. The first and the second PU transistors are formed over an n-type active region over a frontside of the semiconductor structure. The first and the second PD transistors and the first and the second PG transistors are formed over a p-type active region over the frontside of the semiconductor structure. The BL conductors are disposed over a backside of the semiconductor structure.

    Four-Poly-Pitch SRAM Cell with Backside Metal Tracks

    公开(公告)号:US20210375883A1

    公开(公告)日:2021-12-02

    申请号:US16888269

    申请日:2020-05-29

    Abstract: A semiconductor structure includes an SRAM cell that includes first and second pull-up (PU) transistors, first and second pull-down (PD) transistors, first and second pass-gate (PG) transistors, and bit line (BL) conductors. The first PU and the first PD transistors form a first inverter. The second PU and the second PD transistors form a second inverter. The first and the second inverters are cross-coupled to form two storage nodes that are coupled to the BL conductors through the first and the second PG transistors. The first and the second PU transistors are formed over an n-type active region over a frontside of the semiconductor structure. The first and the second PD transistors and the first and the second PG transistors are formed over a p-type active region over the frontside of the semiconductor structure. The BL conductors are disposed over a backside of the semiconductor structure.

    APPARATUS AND METHOD OF GENERATING A LAYOUT FOR A SEMICONDUCTOR DEVICE

    公开(公告)号:US20210124863A1

    公开(公告)日:2021-04-29

    申请号:US16796900

    申请日:2020-02-20

    Abstract: A method of generating a layout for a semiconductor device includes the following step. A first layout having a first well region and second well regions is received. Mandrel blocking regions is defined in the first layout. First mandrels are generated outside of the mandrel blocking regions. Active structures are generated to overlap with the first mandrels in the second well region, and a width of the active structures in the second well region is adjusted. Second mandrels are generated in the first well region on two opposite sides of the first mandrels. Active structures are generated to overlap with the second mandrel in the first well region, and a width of the active structures in the first well region is adjusted. A second layout is generated based on the active structures located in the first well region and the second well regions.

    Apparatus and method of generating a layout for a semiconductor device

    公开(公告)号:US10977409B1

    公开(公告)日:2021-04-13

    申请号:US16796900

    申请日:2020-02-20

    Abstract: A method of generating a layout for a semiconductor device includes the following step. A first layout having a first well region and second well regions is received. Mandrel blocking regions is defined in the first layout. First mandrels are generated outside of the mandrel blocking regions. Active structures are generated to overlap with the first mandrels in the second well region, and a width of the active structures in the second well region is adjusted. Second mandrels are generated in the first well region on two opposite sides of the first mandrels. Active structures are generated to overlap with the second mandrel in the first well region, and a width of the active structures in the first well region is adjusted. A second layout is generated based on the active structures located in the first well region and the second well regions.

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