Electronics Forum | Sat Nov 07 18:18:58 EST 2015 | ttheis
Hi everyone, We just got our first wave soldering machine operational (novastar 8s) and its working great. I'm just a little unsure about how to best maintain the foam fluxer daily. Do you drain it from the machine each day or just cover the flux t
Electronics Forum | Wed May 22 19:10:47 EDT 2013 | anvil1021
We do a lot of these devices and I guess I am not familiar the term "Dry Solder". The QFN device is not designed to have a drain hole, but needs to have thermal vias to control heat in most cases. We have used every possible gnd pad design and modifi
Electronics Forum | Wed Feb 01 12:20:16 EST 2006 | cvoyles
Hi Bruno, I am an equipment reseller in business since 1994. I have a Smart Sonic MG3000 ultra sonic stencil cleaner in inventory. It is a stainless steel model with Delta Sonics brand ultra sonic generator. It is the guillotine type that raises a
Electronics Forum | Mon Feb 07 13:40:41 EST 2000 | Dave F
Jose: Those are good guesses. Without knowing more, ask yourself: 1 There is probably adequate heat available, but that portion of the substrate that�s not soldering well is not receiving proper heating. Why is the component getting so hot, relati
Electronics Forum | Thu Nov 11 11:03:40 EST 1999 | Andy C.
Horace , We had a similar problem last year on an Ultra 2000 . We cured it by draining the pot , removing the wave forming ducts , pumps and nozzles and cleaning . Refill with fresh solder ( one third solder chips , two thirds solder bars - to get t
Electronics Forum | Mon Jan 27 14:16:46 EST 2003 | russ
i have done this thousands of times. You are correct about no preheat, however it never seemed to be any issue for us. You do have to make sure that you do not expose any SMT comps. to the solder or they will become heat stressed/fractured. Connec
Electronics Forum | Mon Aug 30 16:07:06 EDT 2004 | Shean Dalton
Hi Chen, Based on your posted message, the following ideas are for your consideration: "brown residue" The water soluble solder paste you are using could be a water soluble rosin solder paste formulation. Perhaps the solder paste may not be proper
Electronics Forum | Wed Jan 11 10:29:34 EST 2006 | chunks
Wow, you got off easy. He made a smock suggestion for ESD and next thing ya know we all had these stupid things that didn't fit right, get in the way and became a major pain in the arse (not to mention the people that never wash them. Stains are no
Electronics Forum | Thu May 18 16:10:18 EDT 2006 | adlsmt
We did a tin bath on ours but it was provided for free by Nihon Superior so that is a no-brainer. It was better than taking a risk of having to dump the pot. If you cant get a free tin bath, then you should probably go ahead and fill it half way or s
Electronics Forum | Sat May 18 15:19:55 EDT 2013 | isd_jwendell
OK, I've now read all of the documents you referenced. The problem still remains regarding the thermal vias and how to minimize scavenging. All the docs acknowledge top and bottom tenting, and it's problems. TI says don't do it. Plugging is usually n
