SparkFun Forums

[Kelltrick]

I'm making a custom PCB (my first). I finished the design and noticed some of the SMD pads are overlapping and appear to be one large pad (when viewed in Viewplot).


The pads are only overlapping on the small SMD ICs on the PCB(they have very tiny leads). Does this mean I did something wrong or is this just max tolerances and it won't actually come out this way?

I used Eagle and a cam processing file from sparkfun (in this tutorial: http://www.sparkfun.com/tutorials/109).


As you can see there are clearance errors but how do I fix them, when the chip is that small?

[rrpilot]

It looks like your viewing a soldermask layer in viewplot, you should be able to just observe the copper layers. Depending on the pin pitch of the IC, the default soldermask opening for each pad may overlap each other which is what you're probably seeing. If you want mask in between each pad you'll have to modify the eagle library associated with that part.