Cell Architecture with Backside Power Rails

    公开(公告)号:US20220188496A1

    公开(公告)日:2022-06-16

    申请号:US17685166

    申请日:2022-03-02

    Applicant: Arm Limited

    Abstract: Various implementations described herein refer to a method. The method may be configured to synthesize standard cells for a physical design having a power supply net with power supply rails. The method may be configured to employ a place-and-route tool so as to define edge-types for each standard cell of the standard cells in the physical design based on the power supply net and the power supply rails that touch at least one edge of each standard cell of the standard cells.

    Power Rail Stitching Technique
    5.
    发明申请

    公开(公告)号:US20200020464A1

    公开(公告)日:2020-01-16

    申请号:US16036673

    申请日:2018-07-16

    Applicant: Arm Limited

    Abstract: Various implementations described herein refer to a method. The method may include providing multiple rows of cells having porosity segments including a first row of cells having first porosity segments and a second row of cells having second porosity segments that are arranged differently than the first porosity segments. The method may include providing multiple power distribution rails for the multiple rows of cells having a first power distribution rail and a second power distribution rail disposed adjacent to the first row of cells and the second row of cells. The method may include adjusting position of the second row of cells with respect to the first row of cells to align one or more of the second porosity segments with one or more of the first porosity segments to enable rail stitch insertion between the first power distribution rail and the second power distribution rail.

    Power Grid Healing Techniques
    6.
    发明申请

    公开(公告)号:US20180218107A1

    公开(公告)日:2018-08-02

    申请号:US15418602

    申请日:2017-01-27

    Applicant: ARM Limited

    CPC classification number: G06F17/5077 G06F17/5081 G06F2217/78

    Abstract: Various implementations described herein are directed to an apparatus. The apparatus may include a region identifier module that receives a floorplan of an integrated circuit, identifies a standard cell region between already placed functional blocks of the floorplan, and sub-divides the standard cell region into multiple sub-regions. The apparatus may include a region analyzer module that analyzes each sub-region of the multiple sub-regions to determine a number of already placed power straps that exist within a boundary of each sub-region. The apparatus may include a strap placement module that inserts one or more additional power straps in each sub-region based on user defined parameters for each sub-region, if it is determined that the number of already placed power straps is inconsistent with the user defined parameters for each sub-region.

    Computer Implemented System and Method for Generating a Layout of a Cell Defining a Circuit Component

    公开(公告)号:US20210019463A1

    公开(公告)日:2021-01-21

    申请号:US17062567

    申请日:2020-10-03

    Applicant: Arm Limited

    Abstract: A computer implemented system and method is provided for generating a layout of the cell defining a circuit component, the layout providing a layout pattern for a target process technology. The method comprises obtaining an archetype layout providing a valid layout pattern for the cell having regard to design rules of the target process technology, and receiving an input data file providing a process technology independent schematic of the circuit component for which the cell is to be generated. A schematic sizing operation is then performed on the input data file, having regard to both schematic constraints applicable to the target process technology and layout constraints derived from the archetype layout, in order to generate an output data file providing a process technology dependent schematic of the circuit component. A cell generation operation is then performed using the output data file and layout data determined from the archetype layout in order to generate the layout of the cell. Such an approach enables both the schematic and layout to be co-optimised during generation of the layout of the cell.

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