In view of the speed of today's hardware components, wirings between IC pins cannot be regarded as ``short circuit jumper+some C'' but should be treated as a piece of transmission line. The central problem in design of any equipment employing a number of IC is thus to predict the extent of gradual deterioration of waveforms as pulses propagate along a length of transmission line loaded with many lumped constant loads at distances. A simulation technique for this problem is introduced in the paper, and the technique is more practical than those previously described.

The authors of the above-mentioned paper have been informed by H. Haskal that the technique for the analysis of waveform propagation used in this paper had been previously used by Haskal and Rabinovici2 as early as 1965. This fact was unknown to the authors at the time of the publication of their paper.