Electronics Forum: lead-free solder paste (Page 466 of 806)

Rohs Cost

Electronics Forum | Mon Dec 19 12:18:41 EST 2005 | Amol Kane

funding from who?. we are dealing with the same thing here. the solder paste cost is roughly 1.5 times SnPb, and the cost of bar solder is thru the roof

SN100C vs. SAC 305 wave soldering

Electronics Forum | Wed Jan 04 17:06:20 EST 2006 | samir

All I can say about Alpha and their GOTT-DAMN website is THEY SUCK!! I refuse to register to view product literature... for that reason, Alpha Metals, you won't be looked at for my pb-free paste or bar solder evals.

Historical Solder Cost

Electronics Forum | Tue Feb 07 17:58:57 EST 2006 | johnemeyerjr

Has anyone tracked solder (Paste and or Bar) over the last 5 years. My company would like to see what the trend was, but we didn't keep records since we purchase from distributors.

Wave Solder Issue or maybe not?

Electronics Forum | Tue Feb 28 21:15:08 EST 2006 | davef

Questions are: * What is the scale and scope of the problem? * What does the unfilled portion of the barrel look like? * What class of flux is your solder paste?

Supplier of Sn60/Pb40 alloy

Electronics Forum | Wed May 10 21:43:06 EDT 2006 | Abua Ly

We are looking for supplier of Sn60/Pb40 alloy (solder paste, cored wire, bar solder). Does some one have experiment on this?. Pls. advise.. Thank you..

Poor soldering on fine pitch?

Electronics Forum | Fri Jun 09 08:17:07 EDT 2006 | amol_kane

did you look at the pad vs the stencil design? are you putting down enough solder paste on the pads? what are your reduction ratios for these packages?

Solder on gold finger

Electronics Forum | Thu Jul 20 03:00:53 EDT 2006 | reypal

If you are using SMT machine for component placement you may check your nozzle where in some cases solder paste stuck to it and during placement will easily get into gold pad area. otherwise you have use kapton tape in order not to expose those pads.

Solder hole found after reflow

Electronics Forum | Tue Jul 18 07:39:52 EDT 2006 | Chunks

Is the hole always in the same solder joint? What parts do you see the hole(s) on? Can you try a different paste?

pcb manufacturing

Electronics Forum | Fri Jul 28 09:03:23 EDT 2006 | nodlac

Lets not forget Chemistries... Pastes, flux, solder, glue, underfil, Mask. Someone with manufacturing experience. Cant forget Soldering irons and rework oh oh...and an X-ray.

Blistering issue, mixed LF/SnPb process

Electronics Forum | Fri Jul 28 08:46:36 EDT 2006 | davef

Two lines of thought are: * That you have some solder connections points us towards components. It seems like the solderability protection on some components need to have the reflothermal recipe tailored for that component. * Paste selection is a BI


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