Electronics Forum | Fri Jan 15 03:30:10 EST 1999 | Jeff Sanchez
| Hi all, | | I thought I'd use this forum to ask a couple general questions on fluxes for manual operations: | First - Is it OK to use a wave soldering type flux (specifically OA)? Thinking about activation temperatures and the ramp rate of the wav
Electronics Forum | Sun Aug 08 20:59:55 EDT 1999 | Dreamsniper
| | | What oven temperature should be used to reflow solder (Sn63Pb37) on a PC board (0.075" to 0.100" thickness) in 5 to 10 minutes? | | | | Profiling - tedious but important. As said, start with the paste manufacturers recomendation which is usua
Electronics Forum | Mon May 12 17:59:55 EDT 2008 | rgduval
We're currently experiencing a spate of solder not wetting to pads of PCBs, and it's becoming more aggravating on a daily basis. At this point, we're running out of ideas. I've searched the Fine Archives for information, and, so far, haven't found
Electronics Forum | Mon Mar 09 10:12:43 EST 1998 | Justin Medernach
| Cold Welding | I'm presently doing a project on reflow profiling. | I came across this expression. Can someone please give me a definition. | Best Regards | Tom Mc Grath Tom, I think what you are referring to is also called cold solder. You have
Electronics Forum | Thu Nov 01 12:13:10 EST 2001 | jonathan
I guess this clarifies the defect more then looks at the process, but I�ll just through it out there for the sake of learning something new. If anyone would comment on this please feel free�. There are many different varieties of dewetting defects.
Electronics Forum | Tue Dec 14 04:01:08 EST 2004 | paul_fisher
We have a problem with dendritic growth that is affecting a new board going into production. This is of concern because they were subjected to Damp Heat Cyclic Tests as part of the product validation testing during their development. Fails to date
Electronics Forum | Tue Oct 25 15:19:15 EDT 2005 | jimmyjames
Sorry this is such a long thread but I would like as much input as possible to everything I ramble on about... :) ------------------------------------------------------ We are now seeing more and more RoHS parts showing up in our SMT inventory and
Electronics Forum | Fri Jun 25 16:54:25 EDT 1999 | C.K.
| | | Dear John/Earl | | | | | | Thanks for your clarifications. To me also the problem does not seem to be linked with the PCB. The Pre heater temp. is set at | | | 450 degree C. We are using Alpha Aq. cleanable flux. Can you elaborate on the
Electronics Forum | Wed May 12 16:31:25 EDT 2004 | Mark @ SolderStar
In answer to your questions. (1) pls can any body throw some light on the reflow profiling? Reflow profiling is the process of confirming that you PCB's that pass through your reflow oven are produced within specifications provided by solder paste
Electronics Forum | Tue Feb 13 15:56:16 EST 2007 | darby
Campos, This is a direct reply I recieved from Indium, (thanks to Rich Brooks), in late 2004 regarding SMQ230. I have followed these guidelines with good results using ENIG finish. Same also applies to Indium 5.1 apply to both alloys (SAC 387 and 305
