Noise suppression circuit, ASIC, navigation apparatus, communication circuit, and communication apparatus having the same

    公开(公告)号:US07230554B2

    公开(公告)日:2007-06-12

    申请号:US11411143

    申请日:2006-04-26

    IPC分类号: H03M1/00

    CPC分类号: H03K19/00361 H03K17/162

    摘要: The present invention provides an noise suppression circuit comprises an internal circuit which has a high and a low level terminals. The low level terminal is connected to a low level power supply (GND) line. The noise suppression circuit further comprises a first transistor in which one main electrode is connected to the high level terminal of the circuit, a bypass capacitor connected between the other main electrode of the first transistor and the low level power supply line, and a second transistor connected between the other main electrode of the first transistor and a high level power supply (VDD) line. The first transistor is conductive when the internal circuit is active, and is not conductive when the internal circuit is inactive. The second transistor is not conductive when the internal circuit is active, and is conductive when the internal circuit is inactive. Moreover, a communication circuit for setting the number of data buses to be newly added to be less than two times a transmission on data, then encoding the data to be sent so as to make the numbers of “0” and “1” in the data to be sent through the data buses equal to each other and accordingly reducing the increase of the number of the data buses to a minimum and thereby suppressing the common phase power supply noise is provided. A communication apparatus comprising the communication circuit is also provided. Furthermore, the bypass capacitor C for noise suppression circuit is formed in an empty space in a ASIC. A polysilicon layer constituting one electrode of the bypass capacitor is formed in the substrate contact region formed between basic cells regularly arranged, each including a plurality of nMOS and pMOS transistors. This bypass capacitor C is connected between the high and the low level power supply lines to reduce the current running through the power supply line to suppress the EMI noise.

    Method, apparatus and program for designing a semiconductor integrated circuit by adjusting loading of paths
    8.
    发明授权
    Method, apparatus and program for designing a semiconductor integrated circuit by adjusting loading of paths 失效
    通过调整路径负载来设计半导体集成电路的方法,装置和程序

    公开(公告)号:US06904572B2

    公开(公告)日:2005-06-07

    申请号:US10378731

    申请日:2003-03-03

    CPC分类号: G06F17/505

    摘要: A computer-implemented method for designing a semiconductor integrated circuit, which optimizes the propagation delay of a path from a signal input terminal (source) to a signal output terminal (sink) on the same net, includes: calculating the ratio of the total sum of a gate input load capacitance to the wiring capacitance of the path from the source to the sink as a process variation sensitivity relating to the capacitance component of the path to be designed from the source to the sink, based on a circuit design information of a gate level of the semiconductor integrated circuit to be designed; and optimizing the process variation sensitivity relating to the capacitance component of each path in order that the process variation sensitivities relating to the capacitance components of all the paths are smaller than a reference value.

    摘要翻译: 一种用于设计半导体集成电路的计算机实现的方法,其优化从同一网络上的信号输入端(源)到信号输出端(汇)的路径的传播延迟,包括:计算总和 基于从源到宿的电路设计信息,从源到宿的路径的布线电容的栅极输入负载电容作为与从源到宿设计的路径的电容分量有关的过程变化灵敏度 要设计的半导体集成电路的栅极电平; 并且优化与每个路径的电容分量相关的过程变化灵敏度,以使与所有路径的电容分量相关的过程变化灵敏度小于参考值。

    Automated wiring pattern layout method
    9.
    发明授权
    Automated wiring pattern layout method 失效
    自动布线图布局方法

    公开(公告)号:US06779167B2

    公开(公告)日:2004-08-17

    申请号:US10133953

    申请日:2002-04-26

    IPC分类号: G06F1750

    摘要: An automated wiring pattern layout method is provided. With this method, a first wiring pattern is generated with width W and extending in a first direction, and a second wiring pattern is generated with width W and extending in a direction perpendicular to the first wiring pattern in a manner such that the end thereof ends at the end portion of the first wiring pattern. Moreover, an overlapping region is generated by bending an end of either one of the first or the second wiring pattern at a right angle to produce an L-shaped extension and overlaying the first and the second wiring pattern, and a rectangular-shaped VIA pattern is generated at the overlapping region.

    摘要翻译: 提供了一种自动布线图案布局方法。 利用该方法,产生具有宽度W并沿第一方向延伸的第一布线图案,并且以宽度W产生第二布线图案并且沿垂直于第一布线图案的方向延伸,使得其端部结束 在第一布线图案的端部。 此外,通过将第一或第二布线图案中的任一个的端部以直角弯曲而产生重叠区域以产生L形延伸部并且覆盖第一和第二布线图案,并且形成矩形VIA图案 在重叠区域产生。

    Semiconductor integrated circuit of low power consumption type
    10.
    发明授权
    Semiconductor integrated circuit of low power consumption type 失效
    低功耗半导体集成电路

    公开(公告)号:US5986961A

    公开(公告)日:1999-11-16

    申请号:US955530

    申请日:1997-10-22

    CPC分类号: G11C5/025 G11C5/14

    摘要: A semiconductor integrated circuit of a low power consumption type has modules (1) to which various supply voltages are provided. In each module (1), cells (3) are grouped into cell rows or cell columns. Only one of a wire (7) of a high supply voltage and a wire (5) of a low supply voltage is formed on each cell row or cell column in the module (1). Various supply voltages are provided into the target cell (3) through the electrical wires (5, 7).

    摘要翻译: 低功耗型的半导体集成电路具有提供各种电源电压的模块(1)。 在每个模块(1)中,单元格(3)被分组成单元行或单元列。 在模块(1)中的每个单元行或单元列上仅形成高电源线(7)中的一个和低电源电压的导线(5)中的一个。 通过电线(5,7)向目标电池(3)提供各种电源电压。