Electronics Forum | Tue Sep 10 15:27:30 EDT 2013 | gbarb
I have a design that requires the PCBA to be potted. However I have a shrouded header on the board that I need access to. Is there a way to cover this header during the potting process and then removed the cover after the potting material has cured
Electronics Forum | Tue Sep 10 17:40:14 EDT 2013 | caurbach
Let me start off by saying that although we pot a decent variety of products, we have never been asked to do something like this, so this is not based on personal experience. This is just my gut talking here. I suppose you could use some sort of ca
Electronics Forum | Mon Feb 24 15:19:30 EST 2014 | bc
I work with after market cell phones and I need to figure out a robust way to protect the board to board connectors during the vapor deposition process (paralyne). Does anyone have experience with masking and paralyne?
Electronics Forum | Thu Jan 14 09:25:34 EST 2016 | davef
IPC-A-610F 10.2.6 Laminate Conditions - Depanelization talks to the acceptability of the depanelization criteria for assembled boards. There is no requirement for moisture sealing with epoxy or other material. Basically, the standard requires that th
Electronics Forum | Fri Jul 10 07:34:00 EDT 2020 | elijah
From the poor bonding strength of the board, the surface quality problems of the board are divided into: 1. The cleanliness of the board surface; 2. The problem of micro graphite (or surface energy) on the surface. PCB circuit board proofing Youke bo
Electronics Forum | Mon Nov 12 16:14:47 EST 2001 | davef
Yes!!! How can we assemble boards with 20 pitch when we allow 0.008� error to the master art? Excellent question!!! IPC-D-300G has nothing to do with assembler requirements. It is written by and for fabricators, so that they can be comfortable.
Electronics Forum | Thu Apr 15 11:13:24 EDT 2004 | pjc
Sn corrosion effects were studied for stainless steels, coated stainless steels, titanium, cast iron, and other materials. This study can be found in the SMT Library under "Equipment Impacts of Lead-Free Soldering" Electrovert uses a Melonite coating
Electronics Forum | Thu Apr 15 11:56:42 EDT 2004 | patrickbruneel
I would try a PTFE (Teflon) wire or Teflon protected wire or you could try anodized aluminum. Its getting more and more interesting how the lead free era develops. Just a thought I wander how long its going to take the tin (not passivated with lead)
Electronics Forum | Wed Feb 14 22:51:42 EST 2018 | leadthree
How you pack & ship your board level assemblies? I mean assembled PCB modules without housing etc. We often have small assemblies (cigarette box size) in the $5-15 range. We put them the (dreadful) red bubble bags and then on carton trays with carto
Electronics Forum | Sun Sep 08 18:06:30 EDT 2013 | davef
Protect the board: If solder mask protects the board, the level of protection is limited and inconsistent. If you want protection, you need the be thinking conformal coating. Selective ENIG: I believe the reason solderability protection, except mayb
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