Electronics Forum: fr1 for reflow (Page 1 of 62)

lead free for multiple reflow process

Electronics Forum | Tue Sep 11 22:40:26 EDT 2007 | philip_yam

We are testing SAC paste for thru-hole components in the 2nd reflow process. The solder joint is alright but some problem encountered in FR1 or CAM2 PCB after multiple times of reflow due to the temperature. We are very interested in Zn or Bi-based l

choices for SN100C for reflow

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

choices for SN100C for reflow

Electronics Forum | Thu Jan 19 13:15:53 EST 2012 | waveroom

As a distributor we sell very little SN100C for SMT, we sell far more SAC305 for SMT. The higher temperatures are the reasons.

choices for SN100C for reflow

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

choices for SN100C for reflow

Electronics Forum | Tue Jan 17 21:40:08 EST 2012 | gaz

I'm testing SN100C, and with our 5 zone oven I seem to be able to fix one issue by changing the profile, but that might introduce a new problem. Some profiles work very well on most components, but have issues on other components. These are usually 0

Nitrogen for reflow

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

Nitrogen for reflow

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

Nitrogen for reflow

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/

Nitrogen for reflow

Electronics Forum | Wed Apr 06 10:18:02 EDT 2011 | PB

I have done the same thing. We are changing over to the Indium 8.9E solder paste. It prints great and the joints look great. Does not look like a lead free alloy. We have turned off the nitrogen.

Nitrogen for reflow

Electronics Forum | Fri Mar 18 13:42:02 EDT 2011 | kahrpr

First thing try a different solder paste. All solder pastes are not created equal. Also if everything else on the board looks good then check the part. As far as nitrogen goes its about 4 bucket loads you need an external tank. I have seen some marg

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