It proposes analysis focused on routing issues in high-speed memory design, and uses of DCI ( Digitally Controlled Impedance(DCI) ) to make signal features integrate. 最后,本文还分析了高速电路系统中可能出现的信号完整性问题,着重就高速存储器设计的布线问题进行了分析,并提出了使用DCI(DigitallyControlledImpedance)功能改善信号完整性。