SmileyMicros wrote:I am trying to use the Silabs CP2102 library part with Eagle and the MLF28 pads cause a DRC clearance violation with the clearance set at 8 mils as per the BatchPCB requirements. Does this mean that this part cannot be used as is? Should I edit the part to make the pads smaller or does the 8 mil rule only apply to routing?
Well, that did not work. It lost my message on it somehow.
Anyway, waht I said, in brief, was that it sometimes helps to align the device to the grid, if it is not already aligned.
Then it sometimes helps to have the grid spacing set to the narrowest pad spacing, or a fraction thereof. It is that little job the trace makes as it enters the pad that I some times see as the cause of a DRC error. Other times it simply complains about the pad-to-pad spacing even when it SHOULD have been OK. In that circumstance, I found that realigning the devices helped.
Personally I set the grid to either 8mil or 10mil depending on the limits of the PCB fabricator.
I suppose 4 and 5 mil spacings would work well too.
I wonder what the script is to have all devices re-aligned to the grid.
I will start a new thread for that question.