Re: gEDA-user: A couple o' questions

[Dan McMahill <dan@xxxxxxxxxxxx>]

Stuart Brorson wrote:
> > PCB does min annular ring checks as of several weeks ago.
>
>
> Great!  THis is an important check!  Thank you!
>
> [ . . . .]
>
>
> > By soldermask bridge width do you mean minimum width in between 
> > soldermask relief areas?
>
>
> Yes.  In particular, I am interested to check that the soldermask
> separating two pins (or a pin and a via, or two vias) is sufficiently
> wide.  Otherwise the possibility of an inadvertent solder bridge
> exists.  

eek.  So this is really two issues.

1)  the soldermask relief around each of two adjacent pads makes the 
remaining soldermask too small.

2)  the soldermask relief around each of two adjacent pads (or any 
others in the area) entirely removes the soldermask.

Does the following sound like the correct way to check for this?

1) grow all soldermask relief by min_soldermask/2.
2) verify that all pads are in little islands of soldermask relief with 
no other pads

Not really sure how to code this up, but does this at least sound like 
the correct logical test?

-Dan