I ve gotten some really odd power stripes in my design These

Question

I ve gotten some really odd power stripes in my design These cause spacing errors obviously Any idea why this is I m using the same pdn setup I had in MPW2

Matthew Guthaus · Answer

It looks like this is vssd1 and vccd1 and perhaps that area on the side of the macro isn t wide enough to have a proper stripe so extras are inserted in

Matt Venn · Answer

never seen anything like it

Matthew Guthaus · Answer

I m re running with some additional space on that side to see if it fixes things

Maximo Balestrini · Answer

I ve seen that when there is no space on the sides of the macro for both vssd1 and vccd1

Matthew Guthaus · Answer

So it seems like macros should be placed with at least 100 microns of row space on all sides The straps have a pitch of about 100 so you need to at least guarantee that vssd1 vccd1 get connected in that space

Matthew Guthaus · Answer

My example had 88 9 microns

Matthew Guthaus · Answer

That is with the default strap setup

Maximo Balestrini · Answer

yes I had to set a smaller `FP PDN VPITCH` in my tests because I didn t have space to move the macro

Tayyeb Mahmood · Answer

I have also broken PDN couldn t find time to solve it

Matthew Guthaus · Answer

< U020X2DE6LX> what is the problem with yours

Tayyeb Mahmood · Answer

It fails while flaging two conficting grids for several macros