METHODOLOGY FOR PATTERN DENSITY OPTIMIZATION
    15.
    发明申请
    METHODOLOGY FOR PATTERN DENSITY OPTIMIZATION 审中-公开
    模式密度优化方法

    公开(公告)号:US20160275232A1

    公开(公告)日:2016-09-22

    申请号:US15170026

    申请日:2016-06-01

    CPC classification number: G06F17/5081 G03F1/36

    Abstract: The present disclosure relates to a method of improving pattern density with a low OPC (optical proximity correction) cycle time, and an associated apparatus. In some embodiments, the method is performed by performing an initial data preparation process on an IC design including a graphical representation of a layout used to fabricate an integrated chip. The initial data preparation process is performed by using a data preparation element to generate a modified IC design having modified shapes that are modified forms of shapes within the IC design. One or more low-pattern-density areas of the modified IC design are identified using a local density checking element. One or more dummy shapes are added within the one or more low-pattern-density areas using a dummy shape insertion element. The one or more dummy shapes are separated from the modified shapes by a non-zero space.

    Abstract translation: 本公开涉及一种利用低OPC(光学邻近校正)周期时间改进图案密度的方法,以及相关联的装置。 在一些实施例中,通过对包括用于制造集成芯片的布局的图形表示的IC设计执行初始数据准备处理来执行该方法。 通过使用数据准备元件来进行初始数据准备处理,以生成具有改进形状的修改的IC设计,其是IC设计中的形状的修改形式。 使用局部密度检查元件来识别修改的IC设计的一个或多个低图案密度区域。 使用虚拟形状插入元件在一个或多个低图案密度区域内添加一个或多个虚拟形状。 一个或多个虚拟形状通过非零空间与修改后的形状分离。

    Semiconductor Device and Method of Manufacture

    公开(公告)号:US20240379751A1

    公开(公告)日:2024-11-14

    申请号:US18781098

    申请日:2024-07-23

    Abstract: A method includes depositing a multi-layer stack on a semiconductor substrate, the multi-layer stack including a plurality of sacrificial layers that alternate with a plurality of channel layers; forming a dummy gate on the multi-layer stack; forming a first spacer on a sidewall of the dummy gate; performing a first implantation process to form a first doped region, the first implantation process having a first implant energy and a first implant dose; performing a second implantation process to form a second doped region, where the first doped region and the second doped region are in a portion of the channel layers uncovered by the first spacer and the dummy gate, the second implantation process having a second implant energy and a second implant dose, where the second implant energy is greater than the first implant energy, and where the first implant dose is different from the second implant dose.

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