Circuit Pack Parameter Estimation Using Rent´s Rule

This paper applies an empirically determined relationship known as Rent´s rule to the estimation of circuit pack parameters. In particular, equations are derived for 1) the number of leads passing through a region of a circuit pack based on the position of the region, and 2) the total lead length on a circuit pack. The estimation of these parameters is central to the modeling of circuit size and performance as well as many other important circuit parameters. A technique for determining the Rent parameters for a particular circuit pack is also derived. Finally, experimental validation of these models is described.