Electronics Forum | Thu Mar 17 11:15:26 EDT 2011 | circleprime
I did some investigating and it seemed that getting a reflow oven with an inert atmosphere could be the answer to the inconsistant wetting issues that we are having with a leadfree DFN-10 on one of our products. Here's my question(s). It seems that
Electronics Forum | Mon May 24 06:00:23 EDT 2004 | johnwnz
call me picky but doesn't hydrogen combust? maybe soemthing you could do is look at your process and your products and decide if you actually need to run in N2. Yes ok I can hear the crys now but seriously, for the vast majority of things if you have
Electronics Forum | Mon Jan 23 19:48:27 EST 2012 | gaz
This make me curious how many people are using sn100 versus how many using sac305. The sn100 seemed to generally cover the pads and flow a little better, and looked nicer, but SAC305 overall was easier. Is this normal or do I need to work more on sa
Electronics Forum | Thu Jan 19 16:38:39 EST 2012 | dyoungquist
We are not using SN100C in our reflow process but I know the type of flux made a big difference with our SAC305 solder. We started out using no-clean flux in our SAC305 paste and were having some issues. We then switched over to a water soluble flu
Electronics Forum | Fri Mar 18 15:46:14 EDT 2011 | remullis
I agree with the comments below. I see no difference with lead free. Across five reflow ovens our external nitrogen tank was about 14' tall and 7' round. I am with a different company now due to the great ole american "lets send product out of the co
Electronics Forum | Sun Mar 20 12:58:23 EDT 2011 | sellenzz
We have a Nitrogen Silo. Your going to want to be careful if you decide to use nitrogen, not only are the levels unstable most of the time but it can also cause your components to tombstone like crazy, especially if you run a lot of LED's. We run 24/
Electronics Forum | Tue Aug 22 11:03:45 EDT 2000 | Dr. Ning-Cheng Lee
Hi Kelvin, Regarding to the surface finish of the leads, Sn or Pd may be the direction that the industry takes. First of all, the answer must be "Pb-Free", limiting our choices. Sn has good solderability, and it won't have too great of an impact o
Electronics Forum | Sun Oct 15 23:31:39 EDT 2000 | mkwong
I have a question for N2 reflow, I want to know how difference of the O2 PPM in reflow oven then get the result? Now, we use the N2 to purge into BTU oven and measure the O2 PPM is about 1,000. but cannot find the difference to compare to compress ai
Electronics Forum | Thu Sep 15 02:51:45 EDT 2005 | Joris Groot Koerkamp
In our current process we don't need to dry our pcb's. We use FR4 HASL boards. For the leadfree process we want to use NickelGold plated boards. Do we have to dry these boards for the leadfree process or can we just seal them with silica gel?
Electronics Forum | Mon Aug 16 11:20:09 EDT 2004 | soease
Hi, to profile any type of temperature process, you should try ECD products. I'm used to work with their tool called Super M.O.L.E. Gold, wich is a data logger for six thermocouples that you can run through a reflow oven, for example, and then you c
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