Electronics Forum | Tue Mar 10 16:11:16 EST 1998 | Mike
| Hello, | I know nobody asked, but here are my 2cents on the newer, more comercialized layout of the forum. | I frequent many of the SMT/Assembly forums and the ones I prefer to stay with are the ones that are NOT comercially oriented. | Not having
Electronics Forum | Fri Feb 20 09:41:11 EST 1998 | Chrys Shea
| I have been involved in SMT for only a few months so I am coming from a position of extreame ignorance. I have been asked to investigate the differences in soldering to components with Paladium coated leads vs the standard Tin_lead. I would appre
Electronics Forum | Wed Jan 28 19:39:08 EST 1998 | Steve Gregory
| | What is the lifetime for a typical solder paste ? | | How long can boards be stacked waiting before the paste goes off ? | Lifetime and tack time depends on: | - Manufacturer | - Flux/mixture | - Environmental conditions | Typical lifetime is dep
Electronics Forum | Thu Jan 15 15:13:50 EST 1998 | justin medernach
| I have a problem! The solder on my pc boards look great comeing out | of my reflow oven. They go thrue the rest of the prossese | and at the end at the qc station it's cold or whitish or gray not shiny. | does any one have a idea on how to correct
Electronics Forum | Thu Jan 15 17:07:18 EST 1998 | Graham Naisbitt
A reasonable assumption but it could be a reaction between your solder resist and the fluxes in the wave and reflow processes. The issue is, how will anyone really know? Then, are they likely to compromise circuit reliability? I have a method that wi
Electronics Forum | Mon Dec 22 16:02:22 EST 1997 | Justin Medernach
| what is your experience about the presence of the voids in the joints ? | Are they dangerous and when ? Vincenzo, Voids in solder joints can be caused by a number of factors. Let's begin with the flux vehicle in your soldering media. If the prope
Electronics Forum | Wed Aug 08 15:31:30 EDT 2001 | johnw
Hi folk's, I'm looking for some hint's here. Got a board from the customner that is ceramic, and it's 2.2mm thick. I've got a couple of RF connectors that I need to solder, problem is I can't get any flow up the PTH's. The pin's are gold on the conn
Electronics Forum | Thu Aug 09 16:41:12 EDT 2001 | johnw
Dave , you know it's your cheery disposoition I love.... Ok so the process: Process is Double sided reflow for SMT & PTH via the wave. Like I said or did I, I forget and can't check back...it's a spray fluxer with noclean mutlicore NR3s-06 water b
Electronics Forum | Fri Aug 24 19:08:17 EDT 2001 | stefo
Happy Friday All! Well, it seems another "opportunity" has presented itself to me. Looking to assemble a 24" X 24", 52-layer board... piece-o-cake, right? Not real sure of all the components that are on it, but I do know that there is some 20-mil
Electronics Forum | Tue Aug 28 16:44:27 EDT 2001 | davef
Several points are: * Some may argue that DPMO is peculiar and specific. That�s why IPC-7912 states �Users of this document are cautioned when comparing one manufacturer�s indices to one another due to differences in assembly complexity and the amou
