Issue link: https://resources.pcb.cadence.com/i/1532922
Steps to set up PkgToPkg Spacing: To set that up, simply select the worksheet found at Design for Assembly > PkgToPkg Spacing. Click the + symbol at the top to create a new CSET, then give it the default name, DFAPKGCS1, then click Ok. You are met with a blank window that uses the default 25 mil spacing for all edge to edge, edge to side, side to side and side to edge spacing values. However, depending on the component, you need certain spacing, so it is highly recommended to create symbol classifications, then have different symbols within those classifications (groups) so that each symbol can automatically have the right spacing applied to each type of symbol classification (e.g. all connectors, ICs, discretes, etc. having their own S:S, E:E, S:E, E:S spacing rules). To keep things simple, assume all symbols have the same spacing rules. In that case, select Show symbol classifications… In the DFA Symbol Browser window, select Create DFA Dev Package Class. Then choose the Edge Mounted Component option for Package Classes. 70 www.cadence.com OrCAD X Constraint Management Guide