Make them all the same size. Wave soldering pads are sometimes done with larger corners. In my opinion reflow pads should be equal throughout.
(2009.04.11) kenz...@yahoo.com: > > I'm doing the IC layout for the LPC2368 and I have a small discrepancy > in land layouts that I would like clarification for. The package > outline shows all 100 pins the same size, while the PC board footprint > drawing shows the lands slightly larger for the 8 corner pins (two > slightly different pad sizes on the drawing). I checked the > psas_eagle_library.lbr to see how the last team laid out the LPC2148 > and I see that they left all the pins the same size, which makes sense > as none of the corner pins appear to be power or ground anyway. Would > there be another valid reason to have the corner pads larger? As it's > only 8 pins, I'm moving forward with them all the same size. _______________________________________________ psas-avionics mailing list psas-avionics@lists.psas.pdx.edu http://lists.psas.pdx.edu/mailman/listinfo/psas-avionics
