An evolutionary design methodology of printed circuit boards for high-speed VLSIs
An evolutionary design methodology of printed circuit boards for high-speed VLSIs
复制标题
高速 VLSI 印刷电路板的进化设计方法
DOI：
10.1007/s10015-016-0266-9
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Ikuo Yoshihara
中科院分区：
文献类型：
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作者：
Moritoshi Yasunaga;Ikuo Yoshihara
随着印刷电路板（PCB）的工作频率随着GHz域中的VLSI频率的增加而增加，在PCB设计中出现了两个独立的严重问题。一个是波形失真问题，或信号完整性（SI）退化问题，在PCB走线。另一个是PCB电源层中的电源压降问题，或电源完整性（PI）退化问题。这些问题在传统的个案经验设计中很难克服。在本文中，我们新提出的设计方法，为每个问题，这两个都是基于遗传算法。与传统设计相比，我们分别获得了SI和PI退化的两倍以上的改善率。
As operation frequencies of the printed circuit boards (PCBs) increase in keeping with VLSI frequencies in the GHz domain, two independent serious problems occur in the PCB design. One is waveform distortion problem, or signal integrity (SI) degradation problem, in PCB traces. And the other is power-supply drop problem, or power integrity (PI) degradation problem, in PCB power planes. Those problems are barely able to be overcome on case-by-case empirical designs conventionally. In this paper we newly propose a design approach for each problem, both of which are based on the genetic algorithm. And we obtained improvement ratios of more than double compared with the both conventional designs for SI and PI degradations, respectively.