Electronics Forum | Thu Mar 23 13:48:07 EST 2000 | John Storjohann
A number of years ago I used a Kester product called Solder Saver. It is a thick liquid that one squirts onto the dross on a hot solder pot. It separates out the solder leaving a crust of almost clean dross. Unfortunately a mask is still required. Th
Electronics Forum | Mon Mar 20 08:50:47 EST 2000 | Dave F
Scott: Pyros don't like to be heated, so soldering should be done as quickly as possible. Other tips are: * Keep pyro leads long. * Apply solder to the ends of leads. * Heatsink the lead, while soldering by holding the lead with a pair of pliers
Electronics Forum | Wed Mar 01 16:59:44 EST 2000 | Dave F
Robert: Expect a 0.033" raw ball to be within 0.022" of the pad, after reflow. To be clear, that�s not a matter of shrinking by 33%. The volume of solder on the pad is the same as the volume of solder in the raw ball. It�s just that the solder is
Electronics Forum | Mon Mar 12 04:29:15 EST 2001 | Hon Choi
We've got some products at the sample run stage that we are using hand soldering to assemble and the results are terrible, especially in the reliability of the product. I found this one company that has a machine that places the part AND laser solde
Electronics Forum | Wed Aug 23 19:01:54 EDT 2000 | kbmacg
For high temperature electronics, operating in 225�C ambient environments, most solders can not be used. The high-lead solders all have difficulties of one sort or another. Is their anything new regarding useful high melting point solders? Especially
Electronics Forum | Thu Aug 24 13:51:24 EDT 2000 | Dr. Ning-Cheng Lee
Low temperature aggravates the mismatch in thermal expansion between solder and parts and between components and boards, therefore can induce earlier failure. The low temperature screening test should not be as effective when used on soft solders su
Electronics Forum | Mon May 07 17:59:07 EDT 2001 | davef
One thing I forgot to add about the globs of solder on your bottom side SMT components after wave soldering: The excess solder is likely reducing the reliability of these components, because of the difference in CTE betweeen the ceramic base on the
Electronics Forum | Sun Feb 06 15:26:32 EST 2000 | Carol Zhang
I have a board which contains brass spacers. The spacers will pass through the wave during soldering. I found a silicon-rubber cap that can prevent solder climbing up into the spacer. However, the cap influence the wave flow and reduce the solderabil
Electronics Forum | Thu Feb 03 07:19:39 EST 2000 | Hany A. Salam
Hello there: Could anyone help: 1- In a double wave wave solder M/C, is possible to completely eliminate the second wave without affecting the quality of the solder joints? 2-From a quality control prespective, what is the minimum accepted length of
Electronics Forum | Mon Dec 13 00:05:28 EST 1999 | Dennis O'Donnell
I can't figure out why everyone is plating everything with gold. According to the J Standard, gold plating should be removed before soldering to the surface. The gold, when left on the surface to be soldered will contaminate the solder joint and ca
