ERF Variable

Description

nfp_clr_extend

In negative P&G layers, when a drill does not touch any clearances, it can be a thermal or a drill drilled through an NFP. To check spacing from the NFP to the plane, we use the features in the NFP spacing calculation that are no further from the hole center than the maximum distance, as follows:

Hole radius + Drill to Copper parameter + NFP Spacing parameter + nfp_clr_spacing so that even NFPs with large annular rings will be measured for spacing.