I want to use a microUSB connector on a board I'm designing.
The dimensions of the connector that I'm using is in this Datasheet.

To make a lib I'm using Altium, after setting the dimensions here's how the part looks.

enter image description here

The problem is that I've checked that my dimensions do match the datasheet, however only on the Top layer (red).
When I check the Top Solder layer the pads are connected to each other.

enter image description here

How will this board look if I get it manufactured?
Is the Top layer (red) the footprint, or is the Top Solder layer (purple) the footprint?

| improve this question | | | | |

Top Solder is the Soldermask (you need to interpret it as a negative layer, violet means no soldermask, empty means soldermask), not your actual pad (that's the Top Layer, positive Layer, red = copper, empty = no copper).

Yet, you could get problems with solder quality if you do not have solder mask between your pads as the solder might easier make shorts between to pins. Maybe you could make your pads a bit smaller to increase the distance which would in turn add soldermask between them.

| improve this answer | | | | |
  • \$\begingroup\$ Just to make sure, that I've understood your answer, So that if the violet pads are connect, it doesn't mean that the pads are electrically connect ! \$\endgroup\$ – Engine Aug 9 '16 at 10:34
  • \$\begingroup\$ @Engine That's correct. The Soldermask is essentially the (usually) green lacquer that goes on your PCB. The purple is essentially saying "Please don't put green lacquer here" as it would cover the solderable pads. \$\endgroup\$ – Doodle Aug 9 '16 at 11:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.