SMD padΒΆ


image0

In the above figure a SMD pad is shown.

image1

In the above figure a SMD pad with solder paste is shown.

image2

In the above figure a SMD pad is shown after soldering. By applying heat on top of the PCB, SMD devices will be soldered using the solder paste on the pad as the solder.

Usually the anti pad for the solder mask is 8 mil greater than the copper pad, and the paste pad is the same size. The size of +8 mil for the solder mask, is because of tolerances.