Electronics Forum | Sun Sep 15 21:44:41 EDT 2002 | jason
Hi Dave, Immersion Ag has poor surface appearances after reflow or rather tarnished, while Immersion Tin requries higher temp. Probably that's why Immersion Ag is more preferred.
Electronics Forum | Fri Nov 07 18:26:05 EST 2003 | jsloot
Is anyone using .062 aluminum circuit boards with copper conductors in your production lines? What kind of reflow profile is required? What special considerations are there to be looking for? I am asking for any information you can give me. Thanks
Electronics Forum | Tue Apr 09 16:19:37 EDT 2002 | Peter L.
Has anyone built using the ALIVH PCB (0402, 0.8mm pitch uBGA) on the SMT line? I would like to know any process issues (paste printing, p&p, reflow) related to processing this pcb. Specifically, what type of solder paste was used (no clean) and wha
Electronics Forum | Fri Jul 28 08:08:18 EDT 2006 | Chunks
Screen printer, placement machine(s) and oven. You may also need a hand insertion line, selective solder or wave soldr and some form of electrical test. There are a ton of name brands that no two people can agree on. To get a better feel for what
Electronics Forum | Thu Sep 10 15:06:11 EDT 2009 | dyoungquist
My guess is that he is talking about the gold plated pads not fully wetting with solder. We have seen this on some of our ENIG boards with the gold still showing at the far corners of the rectangular pads. Not knowing if this is hand soldering or p
Electronics Forum | Thu Nov 07 10:07:02 EST 2019 | charliedci
Requesting help from anyone with experience in reflowing Te Connect, PN 1565917-4, 200 pin connecter. Pic attached. Cannot get all 200 pins to wet, main suspect is slight PCB warping during reflow. Have adjusted reflow profile. A 2.75 inch long SMT c
Electronics Forum | Fri Nov 08 14:45:12 EST 2019 | charliedci
Appreciate the input from everyone. The PCB is .062" thick. As a CM we are at the mercy of our customer at this point although (hopefully) they are receptive to advice on the next build. Titanium strips could be an option, I also thought there might
Electronics Forum | Wed Aug 11 18:35:17 EDT 2010 | julie1
Anyone work with or have knowledge about metal core/clad boards? The board I'm working with is approximately 2" X 3/4" aluminum core pcb, in a 56 up array. There are 3 LED placements per board. I'm having trouble getting a consistent screen print.
Electronics Forum | Thu Mar 20 09:40:33 EST 2003 | russ
Are you warping the BGA or the PCB? Russ
Electronics Forum | Fri Oct 24 06:55:48 EDT 2008 | clampron
Good Morning WS, If you experieced the solder balls after reflow of a bare board through the oven, then the source of the solder is either the oven or the board. I have had boards with untented via's that were HASL'd that had entrapped solder and fl
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