Electronics Forum | Wed Jul 03 14:08:10 EDT 2002 | gbriceno
I' designing a PCB with SMD components to optimize the land patterns for wave soldering. I find that the IPC-SM-782 land patterns are not robust enough for wave soldering, yielding ramdom skips and bridges. This PCB will also give me insight on sha
Electronics Forum | Wed Jul 03 15:58:16 EDT 2002 | davef
Your thinking is correct. Wave soldering pads that were designed for reflow can create problems: * Large pads used for reflow [too much solder] can create reliability problems. * Bridging [too much solder] creates rework. * Skipping & shadowing from
Electronics Forum | Wed Mar 19 09:54:44 EDT 2008 | davef
Here's what we suggest: * Keep a 5-mm space between a board edge and a ceramic capacitor. * Mount the capacitor parallel relative to the edge. * Design pads about a half of the termination. * Fixture the board when using your pizza cutter.
Electronics Forum | Thu Mar 20 23:01:40 EDT 2008 | davef
Boardhouse: Not to be confruntational, just trying to better understand what you're telling us. When you say, "Standard spacing most board houses would like to see is" blablabla. * What are the units of these dimensions? * You'd like to see these dim