INTEGRATED CIRCUIT STRUCTURE WITH MULTI-ROW CELL FOR ACCOMMODATING MIXED TRACK HEIGHT

    公开(公告)号:US20240222356A1

    公开(公告)日:2024-07-04

    申请号:US18149279

    申请日:2023-01-03

    CPC classification number: H01L27/0207

    Abstract: A multi-row standard cell and an integrated circuit (IC) structure using the standard cell are provided. The IC structure includes a plurality of cell rows extending in a first direction. At least two cell rows of the plurality of cell rows have different row heights. The IC structure includes a multi-row standard cell positioned in two or more cell rows having different row heights. At least one active region is shared by portions of the multi-row cell across the at least two cell rows. The IC structure may also include one or more asymmetric shared power rails disposed in an asymmetric manner across a row boundary between the at least two cell rows of different row heights. The multi-row standard cells and IC structures allow placement of multi-row cells for mixed track height arrangements in a manner not limited to multiples of row heights.

    INTEGRATED CIRCUIT STRUCTURE WITH CELLS HAVING ASYMMETRIC POWER RAIL

    公开(公告)号:US20240021621A1

    公开(公告)日:2024-01-18

    申请号:US17812790

    申请日:2022-07-15

    Abstract: An integrated circuit (IC) structure includes a plurality of cell rows with each cell row including a plurality of (standard) cells. A power rail for at least one pair of adjacent cell rows is asymmetric relative to a cell boundary between adjacent cells of the at least one pair of adjacent cell rows. Embodiments of the disclosure can also include the standard cell including a plurality of transistors at a device layer, and at least a portion of an isolation area at an edge of the device layer defining a cell boundary. The standard cell also includes the power rail including a first portion within the cell boundary and a second portion outside the cell boundary. The first portion and the second portion have different heights such that the power rail is asymmetric across the cell boundary. The asymmetric power rail provides seamless integration of cell libraries having different heights.

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