发明名称 Load distribution method
摘要 A load distribution method in which loads are divided into groups and each of a plurality of input pins of integrated circuits of a load is wired continuously with one stroke of a signal transmission line in a sequence from a driving output pin in each group when the wiring for distributing the drive signal from the driving output pin of an integrated circuit to plural input pins of integrated circuits, functioning as a load, is such that a plurality of intergrated circuits are mounted at given positions on a printed circuit board. In the load distribution method, the load is divided into groups by equally distributing a number of the loads so as to allow load capacities to be equal to each other on each of a plurality of signal transmission lines, and there is computed a signal propagation delay time of the signal transmission line wired equally in a distance to a load which is equal in a wiring sequence from the driving output pin in each group. Also, the loads are grouped by determining a combination of loads in which the signal propagation delay time of the signal transmission line becomes the shortest.
申请公布号 US5010493(A) 申请公布日期 1991.04.23
申请号 US19890343362 申请日期 1989.04.26
申请人 HITACHI, LTD.;HITACHI COMPUTER ENGINEERING CO., LTD. 发明人 MATSUMOTO, KENJI;YANAGITA, TOMOATSU;NISHIYAMA, YOSHINORI;NAGAI, MASAHIKO;MORIKUNI, MITSURU
分类号 H01L21/82;G06F17/50;H05K3/00 主分类号 H01L21/82
代理机构 代理人
主权项
地址