Semiconductor layer forming method and structure
    5.
    发明授权
    Semiconductor layer forming method and structure 有权
    半导体层形成方法和结构

    公开(公告)号:US08341588B2

    公开(公告)日:2012-12-25

    申请号:US12897021

    申请日:2010-10-04

    IPC分类号: G06F15/04 G06F17/50

    CPC分类号: G06F17/5068 G06F2217/72

    摘要: A method of forming and electrical structure. The method includes determining that a first semiconductor device requires an engineering change order (ECO). An additional structure layer required to implement the ECO is determined. A first insertion point location for inserting the additional structure layer within the first semiconductor device is selected. The first insertion point location is associated with a second insertion point location within a design for a second semiconductor device. The second semiconductor device is generated in accordance with the first ECO. The second semiconductor device comprises second structures. The second structures comprise same structures as first structures in the first semiconductor device. The second structures are formed in locations within the second semiconductor device that are associated with locations in the first semiconductor device comprising the first structures. The second semiconductor device comprises the additional structure layer located within the second insertion point location.

    摘要翻译: 一种形成和电气结构的方法。 该方法包括确定第一半导体器件需要工程改变顺序(ECO)。 确定实现ECO所需的附加结构层。 选择用于将附加结构层插入第一半导体器件内的第一插入点位置。 第一插入点位置与用于第二半导体器件的设计中的第二插入点位置相关联。 根据第一ECO产生第二半导体器件。 第二半导体器件包括第二结构。 第二结构包括与第一半导体器件中的第一结构相同的结构。 第二结构形成在第二半导体器件内的与包含第一结构的第一半导体器件中的位置相关联的位置。 第二半导体器件包括位于第二插入点位置内的附加结构层。

    Minimizing impact of design changes for integrated circuit designs
    6.
    发明授权
    Minimizing impact of design changes for integrated circuit designs 有权
    最大限度地减少设计变更对集成电路设计的影响

    公开(公告)号:US08060845B2

    公开(公告)日:2011-11-15

    申请号:US12173222

    申请日:2008-07-15

    IPC分类号: G06F17/50

    CPC分类号: G06F17/505

    摘要: A method is provided for updating an existing netlist to reflect a design change. A register transfer level (RTL) design incorporating the design change and the existing netlist are provided to a synthesis tool. The existing netlist is set to a read-only condition to prevent a change to the existing netlist. The design and the read-only existing netlist are processed with the synthesis tool reusing logic structures from the read-only existing netlist by performing an optimization of the design and the read-only existing netlist with an objective to minimize the design space. The optimization is constrained by the read-only existing netlist. A result is generated by the synthesis tool including the existing netlist and a new portion of a netlist reflecting the design change.

    摘要翻译: 提供了一种用于更新现有网表以反映设计变更的方法。 将设计更改和现有网表的注册传输级别(RTL)设计提供给综合工具。 现有的网表设置为只读条件,以防止更改现有的网表。 通过执行设计优化和只读现有网表的综合工具对来自只读现有网表的逻辑结构进行重用,设计和只读现有网表被处理,目的是最小化设计空间。 优化受只读现有网表约束。 综合工具产生的结果包括现有网表和反映设计变更的网表的新部分。

    RING OSCILLATOR
    10.
    发明申请
    RING OSCILLATOR 有权
    戒指振荡器

    公开(公告)号:US20140028365A1

    公开(公告)日:2014-01-30

    申请号:US13558498

    申请日:2012-07-26

    IPC分类号: H03H11/26

    CPC分类号: H03K3/0315

    摘要: Aspects of the invention provide a circuit structure that automatically monitors a plurality of ring oscillators and dynamically selects the fastest or the slowest ring oscillator for feedback into the plurality of ring oscillators. In one embodiment, a circuit includes: a plurality of delay elements, each delay element associated with a ring oscillator; a first logic gate for receiving outputs of each of the delay elements; a second logic gate for receiving outputs of each of the delay elements; and a multiplexer for receiving an output of the first logic gate and an output of the second logic gate and choosing one of the outputs, wherein a selection for the multiplexer is based on an output of the multiplexer. To select the fastest ring oscillator, a second multiplexer is provided.

    摘要翻译: 本发明的方面提供了一种电路结构,其自动监测多个环形振荡器并且动态地选择最快或最慢的环形振荡器用于反馈到多个环形振荡器中。 在一个实施例中,电路包括:多个延迟元件,每个延迟元件与环形振荡器相关联; 用于接收每个延迟元件的输出的第一逻辑门; 第二逻辑门,用于接收每个延迟元件的输出; 以及多路复用器,用于接收第一逻辑门的输出和第二逻辑门的​​输出并选择输出之一,其中多路复用器的选择基于多路复用器的输出。 为了选择最快的环形振荡器,提供了第二个多路复用器。