How to create a footprint with a circle of ovals?


#1

I would like to create the Infineon PG-LLGA-5-1 footprint found at https://www.infineon.com/cms/en/product/packages/PG-LLGA/PG-LLGA-5-1/ and https://www.infineon.com/dgdl/Infineon-IM69D130-DS-v01_00-EN.pdf?fileId=5546d462602a9dc801607a0e46511a2e.

All but the stencil openings around pin 5 are relatively easy with KiCad v5. I haven’t been able to figure out how to create that shape exactly. (I can make an approximation but if there’s a way to exactly match the recommendation I’d of course prefer that.) Does anybody have tricks on how to generate paste openings that are curved ovals?

Thanks!


#2

You don’t need to match that shape exactly, a ring of circles with the same total area would suffice.


#3

@1.21Gigawatts is correct. But if you really want to match that shape you can use freecad plus the kicad stepup workbench to create this.