Hi everyone, I am working on the layout with sky130 pdk, and I want the allowed current density for each metal line interconnect for my design. I tried searching the documentation but couldn't get any information on this. Can anyone help me with this information, or how I can calculate it theoretically? @Stefan Schippers @mehdi

@Tim Edwards do you know?

@Avinash Gupta: See the spreadsheet https://docs.google.com/spreadsheets/d/1N9To-xTiA7FLfQ1SNzWKe-wMckFEXVE9WPkPPjYkaxE, tab "Layer Resistances and Capaticances", table "Electromigration rules" at the bottom of the page. Note that SkyWater did not provide any electromigration rules, and these values are estimates based on the layer material (Aluminum) and cross sectional area.

Thank you for the information. It's a great help.

@Tim Edwards I remember seeing this data sheet years back but how confident are we? I remember some of it did not add up.

there is EM rules in LEF file, but idk if they are correct