Electronics Forum | Thu Sep 08 06:19:55 EDT 2005 | lupo
Hello, Could anyone provide some support concern issue with vertical fill of through hole solder. Our lead free wave soldering process is not capable to fill 100% (requirement of our customer)through hole. We made everything (DoE) - different amoun
Electronics Forum | Tue Dec 16 16:49:22 EST 2008 | scottd3
We ran into this problem before, on all of our models. We never quite found out the reason, we do know that if the PCB is passed through a reflow oven that is extremely dirty with evaporated solder paste flux, it will make it extremely difficult (or
Electronics Forum | Mon May 14 12:44:08 EDT 2012 | tomgervascio
I am a user of an Ersa Versaflow 3/45. I was wondering if anyone could share some process pointers. I have a 0.125" multilayer PCB that I am having problems consistently achieving 75 percent hole fill on a mini-coax connector. The coax connector ha
Electronics Forum | Wed Dec 10 16:15:24 EST 2008 | terryl
on the front end in design, minimize the pth connections to ground planes. this takes alot of work by the pcb designer and the approval of the design engineer. connect maximum of 4 ground planes to pth, minimum 1 plane. use spoked connections. ev
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 | Wed Dec 17 09:53:26 EST 2003 | davef
IPC-2222 - Sectional Design Standard For Printed Board For Organic Printed Boards, Table 9-3 � Plated Through Hole Diameter To Lead Diameter Relationships will give you the standard information you require. If we can�t get proper hole fill after try
Electronics Forum | Wed Aug 21 09:09:50 EDT 2013 | wcheew
I am having solder barrel fill issues on THM component, we follow, we follow IPC 610 E requirement. The barrel fill issues happen on signal & ground pin at connector & E-cap. I found out that most of the insufficient solder happen on the connector ag
Electronics Forum | Mon Aug 18 11:57:37 EDT 2008 | dphilbrick
No I was actually thinking more on the lines of this. http://pcdandf.com/cms/content/view/3845/95/ I think if you try and put solder in the hole you will not have a flat or well filled hole in the end.
Electronics Forum | Mon Aug 18 15:09:36 EDT 2008 | pjc
Oops, I thought it was for components- not filling via holes. Yeah, getting it fab'd in would be the way to go I would think.
Electronics Forum | Tue Oct 01 15:48:56 EDT 2002 | lysik
No problem. A standard stencil is OK. You want to print a half moon shape on each side of the hole. Make sure you print about X2 the size of your hole and make sure you keep the print in close to the hole. You want to print X2 the hole size as to hav
.gif)
.gif)
