On Fri, 18 Jul 2003 16:36:42 -0400 DJ Delorie <[EMAIL PROTECTED]> wrote:
> > Ok, after a number of emails back and forth with the folks at Advanced > Circuits, I learned that the "industry standard" for solder masks is > to print them with positive polarity (i.e. dark where you want solder > to go) - you're specifying the reliefs, not the mask around them. > Apparently, some shops will accept either and just fix them as needed. > For professional boards I've always sent the soldermask relief as a positive layer, ie, dark where solder goes as you said. The boards I've done with PCB were fabbed by a low cost place and I didn't get soldermask on those. -Dan