Electronics Forum | Wed Dec 10 00:15:07 EST 2008 | jeffjarmato
Are there any good solutions for getting good barrel fill on PTH boards using Pb Free solder and No Clean flux. All of our boards are having issues getting minimum required fill per IPC. It does not matter if the board is 062 or thicker, any pin conn
Electronics Forum | Thu Dec 11 07:29:58 EST 2008 | jdumont
I have done a few studies on this issue here. As a result we have increased hole diameter on heavily ground planed pins to a min of .015" over the lead diameter as well as preheating the PCB when hand soldering. I have also had to order the upper pre
Electronics Forum | Fri Apr 10 13:25:08 EDT 2009 | jefflkupkt
Layer 2 is the ground plane layer of a 4 layer board. After installing a 2.5 mm DC power jack and 0.1 center SIP header by hand, the ground pin disconnects and causes an open. My board supplier said they passed Electrical Test. Prepreg was within
Electronics Forum | Mon Apr 05 17:47:21 EDT 2010 | boardhouse
Hi Deni, X-ray will not be able to see through Power and Grn planes. Your only way to find out is: 1) ask your board supplier to supply stack up used. 2) surface grind layer by layer to validate if it is correct stack up. What is making you think
Electronics Forum | Fri Jun 08 17:06:41 EDT 2012 | tombstonesmt
We have many Pillarhouse Jade Mark II's in our facility. Lately design engineers have taken a liking of huge ground planes in boards. Quite honestly with topside heaters some of these boards were impossible to solder. True you can preheat with the no
Electronics Forum | Fri Jun 01 16:13:45 EDT 2012 | kahrpr
You also need to get with the PCB manufacturer. Their is a lot that can go wrong with that many layers. If the manufacture is trapping that much moisture. you may have a hard time baking it out. Dave and Graham are right about the time and energy. It
Electronics Forum | Fri Jul 26 12:55:46 EDT 2013 | gallionc
I agree with both previous statements. You may have already sorted this one out, but regardless of whether you are running leaded or lead free, the first things I would look at is sufficient flux and sufficient heat/dwell time. It sounds like you a
Electronics Forum | Thu Apr 17 13:30:30 EDT 2014 | anvil1021
in our opinion unless the Nikon machine has a solution to the Xplane ability to use Tomosynthesis there is a huge difference in the 2 machines. Xplane is a huge quality enabler and we have people beating our door down to get us to look at their perce
Electronics Forum | Fri Jan 30 06:14:01 EST 2015 | philc
And there is always the argument of "get in and out quick", which is possible with high tip temps. I prefer to use a really hot iron, and do it quickly, rather than a lower temps and keep the tipi on the bit till it melts the solder. If you have a P
Electronics Forum | Wed Mar 27 03:37:35 EDT 2019 | nick_arsi
Hi All Respected Engineers, Now a days am testing a high speed 20 layer PCB but currently the issue am facing that most of signals give KOhm or Mohm resistance with respect to GROUND as it should be infinity.We have around 7 GND planes in our PCB s
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