Electronics Forum | Fri Jul 24 16:33:45 EDT 2015 | cnotebaert
You should be fine! best practice for a situation like this would be to run a solder sample, either flux it and run through wave, or screen print, don't place parts and run through reflow. look for proper wetting characteristics if you see de-wetting
Electronics Forum | Thu Apr 20 03:50:35 EDT 2017 | cromaclear
To overcome the dewetting issues of the past, a number of techniques have been used such as alternating directions on the wetted nozzle; this helps to avoid the solder biasing to one side causing the other side to oxidize and de-wet. Another method o
Electronics Forum | Fri Aug 24 11:58:18 EDT 2018 | cupet
Hello davef, thank you for your reply. What do you think about the footprint for the diode on the first picture where the component is not assembled? There is good wetting on one pad of footprint and the other pad has bad wetting. This problem is not
Electronics Forum | Sun Apr 19 12:54:39 EDT 2020 | davef
A-620G doesn't require 100% wetting to the thermal pad. It requires 100% wetting to the land in the end-joint area. The end joint is the portion of the solder connection that is at the top [or bottom] of the connection. Look at 7.1.3 Solder Joint A
Electronics Forum | Thu Feb 22 21:20:43 EST 2001 | davef
Sony assembly plants look like a Panasert sales person's wet dream.
Electronics Forum | Fri Oct 19 00:37:43 EDT 2001 | ianchan
Hi, my guys did such solder paste deposits on PCB bareboards before, (before my physical join with my current company), approximately 2-3 years ago, for a small Lot run. What the PCB supplier did was to apply "block" shaped Sn/Pb paste alloy onto t
Electronics Forum | Tue Apr 24 11:48:06 EDT 2001 | relensky
Thank you for the input
Electronics Forum | Tue Dec 14 15:58:17 EST 1999 | Curtis T
What is your board finish it sounds like an osp. That type of thing is common with osp finishes.
Electronics Forum | Tue Aug 17 04:12:32 EDT 1999 | Scott J
Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use a Ko
Electronics Forum | Thu Aug 23 20:56:08 EDT 2001 | davef
Print paste on tempered glass, place the parts, and reflow. What's the story?
.png)
