Oversized contacts and vias in layout defined by linearly constrained topology
    5.
    发明授权
    Oversized contacts and vias in layout defined by linearly constrained topology 有权
    由线性约束拓扑定义的布局中的超大触点和通孔

    公开(公告)号:US09425145B2

    公开(公告)日:2016-08-23

    申请号:US14987723

    申请日:2016-01-04

    发明人: Scott T. Becker

    摘要: A rectangular-shaped interlevel connection layout structure is defined to electrically connect a first layout structure in a first chip level with a second layout structure in a second chip level. The rectangular-shaped interlevel connection layout structure is defined by an as-drawn cross-section having at least one dimension larger than a corresponding dimension of either the first layout structure, the second layout structure, or both the first and second layout structures. A dimension of the rectangular-shaped interlevel connection layout structure can exceed a normal maximum size in one direction in exchange for a reduced size in another direction. The rectangular-shaped interlevel connection layout structure can be placed in accordance with a gridpoint of a virtual grid defined by two perpendicular sets of virtual lines. Also, the first and/or second layout structures can be spatially oriented and/or placed in accordance with one or both of the two perpendicular sets of virtual lines.

    摘要翻译: 定义矩形的层间连接布局结构以将第一芯片级的第一布局结构与第二芯片级的第二布局结构电连接。 矩形层间连接布局结构由具有比第一布局结构,第二布局结构或第一布局结构和第二布局结构两者的对应尺寸大至少一个尺寸的截面横截面限定。 矩形层间连接布局结构的尺寸可以在一个方向上超过正常的最大尺寸,以换取在另一个方向上减小的尺寸。 矩形层间连接布局结构可以根据虚拟网格的网格点放置,虚拟网格由两组垂直的虚拟线段组成。 此外,第一和/或第二布局结构可以根据虚拟线的两个垂直组中的一个或两个在空间上定向和/或放置。

    Methods for controlling microloading variation in semiconductor wafer layout and fabrication
    7.
    发明授权
    Methods for controlling microloading variation in semiconductor wafer layout and fabrication 有权
    用于控制半导体晶片布局和制造中的微加载变化的方法

    公开(公告)号:US09122832B2

    公开(公告)日:2015-09-01

    申请号:US12512932

    申请日:2009-07-30

    IPC分类号: G06F17/50

    摘要: Problematic open areas are identified in a semiconductor wafer layout. The problematic open areas have a size variation relative to one or more neighboring open areas of the layout sufficient to cause adverse microloading variation. In one embodiment, the adverse microloading variation is controlled by shifting a number of layout features to interdict the problematic open areas. In another embodiment, the adverse microloading variation is controlled by defining and placing a number of dummy layout features to shield actual layout features that neighbor the problematic open areas. In another embodiment, the adverse microloading variation is controlled by utilizing sacrificial layout features which are actually fabricated on the wafer temporarily to eliminate microloading variation, and which are subsequently removed from the wafer to leave behind the desired permanent structures.

    摘要翻译: 在半导体晶片布局中识别有问题的开放区域。 有问题的开放区域相对于布局的一个或多个相邻开放区域具有尺寸变化,足以导致不利的微加载变化。 在一个实施例中,通过移动多个布局特征来阻止有问题的开放区域来控制不利的微加载变化。 在另一个实施例中,通过限定和放置多个虚拟布局特征来屏蔽相邻有问题的开放区域的实际布局特征来控制不利的微加载变化。 在另一个实施例中,通过利用实际上在晶片上制造的牺牲布局特征来暂时控制不利的微加载变化,以消除微载荷变化,并且随后从晶片中移除留下期望的永久结构。