Electronics Forum: anti and voiding and profile (Page 1 of 1)

Imm Silver and Voiding

Electronics Forum | Fri Jun 23 10:10:15 EDT 2006 | Gman

Some amount of voiding was always seen on sites where solder paste is printed. These voids are much smaller. However the site where a flip chip is flux dipped has never had problems with voiding. Macro voids (and huge ones at that)across the board s

Altitude and solder voids

Electronics Forum | Thu Nov 01 10:57:34 EDT 2012 | kris1128

Has anyone heard whether the elevation of a plant can effect solder joint formation? One plant at sea level, one at 7,000 feet elevation... same equipment and profiles, big voiding defects at higher elevation. I did a search and found no similar post

BGA rework and inspection

Electronics Forum | Thu May 30 10:31:03 EDT 2002 | robbied

Hi Yannick. This is an issue that we are just recently getting into but here is some ifo that I have gathered so far. I have seen/ used 2 different rework machines. The one we have bought is a 'PACE TF2000' which was at the lower cost end of the mar

Re: Reflow glue and past.

Electronics Forum | Wed Feb 09 21:29:28 EST 2000 | Dave F

Charlie: People cure glue using their paste reflow profile all the time. And most of them are happy. Personally, I�m with Dean and Travis. It�s possible to as you suggest, it�s appealing not to mess with your oven profile, but it just doesn�t s

BGA ball and PCB pad

Electronics Forum | Fri Feb 27 11:33:32 EST 2004 | Bryan

Very strange question,but interesting.Is there anyone who have conducted any experiments to figure out the results?I made a profile board,one thermal couple on pad and other one drilled into the ball of BGA.the 2 points are perpendicular to conveyor

Mix Pb and Pb free alloy

Electronics Forum | Wed May 24 16:19:58 EDT 2006 | inds

John, there have been quite a few discussion on Mixed Assemblies in this forum.. do a search.. you will get whole lot of information.. in addition - IF you are using Lead-free reflow profile...make sure the rated temp for Sn-Pb components is not vi

Weak joint strength and black residue

Electronics Forum | Fri Jun 08 17:22:51 EDT 2007 | naynayno

We have been producing an IMS assembly with SMT dpak's for some time. However, we recently encountered a new problem by chance - the parts can be flicked off with a finger nail. I state by chance because the solder joints are wetted and shiny with

Mix Pb and Pb free alloy

Electronics Forum | Wed May 24 15:59:34 EDT 2006 | JohnM

I have a product with mixed in Pb free and Pb BGAs. I decide to use SnPb paste with Pb free reflow profile to make it work for both types of BGA. Do I have a reliability solder joint issue by using this method? How is your opinion on this case? Can

Lead-free and Leaded solder in the same reflow

Electronics Forum | Fri Feb 03 16:40:24 EST 2006 | Mike

At my last employer, we ran a number of tests to make a "Hybrid" profile work (same profile Joe lists) . It worked great for everything but BGAs. The problem (6 months ago) was using parts not rated for lead free reflow temps. As the market fills wit


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