how to avoid off-grid DRC errors in virtuoso

[henrywent]

correct off grid skill code

hi there,
how to avoid off-grid DRC errors when creating 45 degree path in virtuoso layout environment ? thanks in advance!

 

[pit1000]

off grid drc

Try to change path justification type on left or right.

 

[fixrouter4400]

path off grid

hi henrywent,

offgrid is normal in vxl when you do a 45 degree path...the only way to fix this is to make a polygon on a 45 degree line.

hope this helps.

cheers!

 

[pit1000]

Re: off-grid problem

hi henrywent,

offgrid is normal in vxl when you do a 45 degree path...the only way to fix this is to make a polygon on a 45 degree line.

hope this helps.

cheers!

It is true. Change justification type will change nothing. I apologise for the incorrect offer in the previous message.

 

[dmparmet]

Re: off-grid problem

Easier here is to draw the path then convert to polygon then chamfer the corners.
This goes much faster where you can chamfer the 90 degree angles in one move.

 

[k_90]

Re: off-grid problem

We have a script that overlaps pieces of path with polygons to avoid by outer edges of the path.

I may be able to get a copy of it...

 

[fixrouter4400]

off-grid problem

hi k_90,

can you share it with us...that would be great.

cheeers,

fixrouter

 

[varma_cs012]

Re: off-grid problem

I don't think....We can fix the Off grid problems..for 45 degree bending....If K_90 can eloberate on what he is talking about it will be gr8...!!!

 

[gafsos]

Re: off-grid problem

Hello k_90,

can you share it with us, that would be great;

@+

 

[Teddy]

off-grid problem

If you use IC613 there is a Create Wire. Then you can use wire as a path or from segments. If you use segments those are on grid.

Or go to Cadence Sourcelink - there is a skill code for snapping stuff on grid.