Issue link: https://resources.pcb.cadence.com/i/1180264
Working with Backdrilling Backdrilling October 2019 31 Product Version 17.4-2019 © 1999-2020 All Rights Reserved. Tip The Plunges column can be used to determine which backdrill layer pairs are underutilized and the Backdrill Analysis report displays the Net Name, Object, X-Y locations, and so on so that they can be investigated. Reviewing the routing at the backdrill site to assess if there is an opportunity to reroute the connection to eliminate the underutilized backdrill layer pair and to avoid the extra backdrill process at the fabrication vendor. You could also disable the layer pair to isolate the locations on the underutilized layer pairs and have them reported as errors. Tip After revising routing to reduce the number of backdrill layer pairs run analysis again from the Backdrill Setup and Analysis to review the backdrill results. Disabled layer pairs can be deleted using right-click option Delete Pair over the disabled row. Figure 1-16 Review backdrill plunges by layer pair for underutilized layer pairs