Electronics Forum | Tue Dec 01 13:53:12 EST 1998 | Brian Conner
| | | | | | All y'll: I could use your input on determining when to skim dross from a wave solder pot. | | | | | | | | | | | | On one hand, dross protects the surface of the solder from oxidation. On the other hand too much dross may affect solder
Electronics Forum | Wed Dec 02 09:03:34 EST 1998 | Dave F
| | | | | | | All y'll: I could use your input on determining when to skim dross from a wave solder pot. | | | | | | | | | | | | | | On one hand, dross protects the surface of the solder from oxidation. On the other hand too much dross may affect
Electronics Forum | Wed Jul 15 05:36:34 EDT 1998 | Stoney Tsai
Bare board solderability plays a significant role of forming good solder joint. Currently, I can not find any information about bare board solderability testing procedure or methods. I think the procedure of testing should have some differentiations
Electronics Forum | Sun Apr 03 10:07:40 EDT 2005 | davef
In 2001, IVF evaluated the reliability of IBM CBGA and CCGA, i.e. packages with "hard" balls and columns, in space applications for the European Space Agency. One clear result was that amount of solder paste printed on the solder lands is very critic
Electronics Forum | Wed Jan 10 17:18:11 EST 2007 | flipit
I am soldering a Germanium Window with a > metalized rim to a Ni-Au plated kovar lid. The > solder joint needs to be hermetic. I am using > 80In solder washer shape preform, but am > experiencing lots of voiding when x-rayed, > although the jo
Electronics Forum | Thu Jun 25 10:05:05 EDT 1998 | Chris Sargent
I have got a strange problem with a customers board. The problem being that I have had a number of boards returned to myself for Dry Joints. When you examine the joints, the solder fillet is perfect, the only problem being that it is attached to th
Electronics Forum | Tue Jun 16 19:41:46 EDT 2020 | emeto
Voids form mainly two ways. 1. Contamination - due PCB pads/part leads oxidation, wetting on the pad is bad forming void(these are usually borders with SMT pad - peripheral) 2. Process formed. These are in the center of the solder joint - could n
Electronics Forum | Wed Sep 05 10:59:02 EDT 2007 | slthomas
What's sad is, it really happened. I won't bore you with the details again. ;) Lloyd, I would love to have a nice Hi Scope too (I think Cchunks works for one of those big champagne and caviar corporate entities ;)) but if you can't swing it, at leas
Electronics Forum | Sat Jul 28 05:31:20 EDT 2001 | nop_e
Hi all I just got feedback from my customer about "White residue problem" around solder joints with manaul soldered connector at customer site and included the failure analysis report that there is residues of Cl,S,Na . I 'd like to know, the whi
Electronics Forum | Fri Mar 20 13:00:14 EDT 2020 | dwl
I've done over printing for Pin in Past applications and you'd be surprised how much you can over print and still end up with an acceptable solder joint and no solder balls. As others pointed out, there are a lot of variables involved, so trial and
.gif)
