Electronics Forum | Fri Apr 13 10:13:31 EDT 2007 | stockley
Lozie We built our own soldering robot using pace soldering irons but we have considered a Apollo Seiko bot for a different facility. I'm curious to know what kind of life you get out of those Apollo Seiko irons with lead-free solder. How many solde
Electronics Forum | Thu Jul 10 15:15:17 EDT 2008 | patrickbruneel
I have a tendency to agree with CK Experience and accomplishments in wave soldering are more valuable then the degree. Remember wave soldering is not taught in school although it is a vital process in the electronics assembly. The quality and relia
Electronics Forum | Tue Mar 31 08:11:51 EDT 2009 | davef
Solder ball formation can be a significant problem if the balls get trapped in the smaller spaces between ceramic chip carriers and substrates or possibly between the leads of small pitch leaded ICs. The solder balls also reduce the solder volume ava
Electronics Forum | Thu Sep 02 06:22:34 EDT 2010 | sachu_70
Good. This is the right way to profile. Let me ask you, have you anytime soldered QFN componets on your boards? The concept of LGA soldering is similar to that used for a QFN package. QFN soldering also exhibits void formations, and is an inherent pr
Electronics Forum | Tue Oct 05 18:05:56 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Tue Oct 05 18:06:21 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Tue Oct 05 18:06:53 EDT 2010 | jry74
I have seen an increase in components with contaminated leads, mostly SMT parts. They give us solder wetting problems and insufficient solder joints. Our practice is to not use them and return them to the manufacturer. Are these parts solderable?
Electronics Forum | Wed Aug 08 14:27:00 EDT 2012 | hegemon
Vapor soldering has some advantages for heavy boards, especially in energy transfer to the board and solder. The soldering temperature is fixed by the boiling point of the liquid used, and will not exceed that temperature, another advantage. The tr
Electronics Forum | Fri Feb 09 13:28:24 EST 2018 | jmedernach
Pin holes in the solder joints on various devices can be an indicator of something amiss with the solder paste itself. Solder paste storage may be a concern. Do you possibly have someone putting paste back in the refrigerator after use? Are you tr
Electronics Forum | Mon Jan 21 11:41:39 EST 2019 | SMTA-Tony
Lead free HASL coatings can be susceptible to yellowing during reflow due to oxidation of the tin in the coating. Some HASL solder suppliers use anti-oxidant additives in the solder to limit or prevent yellowing of the coating. You may want to ask
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