I understand EM effect occurs due to high current density causing voids or hillocks. This can be reduced by using wider metal nets and IR causes voltage drop due to increased resistance becoz metal widths are reduced. To address both these effects metals widths should be made bigger. Am i correct about this? Also for a digital design using Encounter i normally just use the route option in the tool. I have never checked in what metal width does the tool routes the design. so i guess addressing EM and IR issues while doing layout is by changing or specifying a increased metal width in the tool. Can we do this in Encounter? Pls let me know! Thanks