一、设计前的准备: 根据整机的设计思想和逻辑系统对多层板进行逻辑分割,设想几种方案进行草图试布,以得出合理的划分系统和选择最佳的尺寸,层数及组装形式。 1、确定每块多层板输入输出点的数量: 输入输出点对印制板的设计有很大的影响,如果在一块多层板中需要同外界联接的点数 First, the pre-design preparation: According to the design of the machine and logic system for multi-layer PCB logic partitioning, imagine several scenarios for trial cloth, in order to arrive at a reasonable system of division and the choice of the best size, number of layers and Assembly form. 1, determine the number of input and output points per multilayer: input and output points on the PCB design has a great impact, if the need for a multi-layer connection with the outside world points