Electronics Forum | Wed Aug 24 12:37:38 EDT 2011 | hussman
Hello all, We just got some board back from thermal shock and we found that several of the 2512 resistors opened up. Actaully the solder joint cracked away from the board. All other coponents look great. Boards were good before test. 10 layer bo
Electronics Forum | Tue Nov 15 22:27:21 EST 2011 | Jacki
Hi Zaza Thanks. Again, very appreciate if you advise me where I can get the SN100C solder bar that is water soluable. Now I'm checking Nihon Superior(Singapore) whether they have or not. As our customer's preference, we have to use the watersoluab
Electronics Forum | Wed Aug 21 17:03:13 EDT 2013 | hegemon
I think your pre-heat temp is a little low for SAC 305 Soldering. Especially with a Pallet. You might want to try to add some time and temp to get the PWB itself preheated up to 150-160C. That should help with the barrel fill. Make sure your board
Electronics Forum | Tue Nov 24 18:45:12 EST 2009 | gregoryyork
We put it in one flow soldering machine probably 12 years ago now worked really well but was extremely brittle you maybe better off with the 1% Ag alloy as its more ductile. Look at AIM Solders site if you want further information on the alloy Itis a
Electronics Forum | Thu Oct 13 15:34:55 EDT 2005 | Amol
Hi, We are in the process of transitioning to LF production. What are some of board materials being successfully used in production? Also, what surface finishes show promice of good results with SAC 305 solder? We are currently testing multiple boar
Electronics Forum | Fri Aug 04 07:44:09 EDT 2006 | aj
Hi, Have you incorporated any Aperture Modifications in your stencil.( i.e. Homebase / 10% reductions). I have a similiar problem here with one of our high volume builds and I am in the process of ordering a new stencil with recommeded aperture red
Electronics Forum | Mon Aug 14 12:08:35 EDT 2006 | cuculi54986@yahoo.com
I agree with using the homeplate design on chips. Some Pb-free solder paste manufacturers recommend 1:1 apertures. This, in my experience, is not a good idea with any of the SAC305 pastes I've tried. I've been using the same stencil design guideli
Electronics Forum | Wed Sep 04 07:15:02 EDT 2013 | anilw2006
We have using SAC305 type solder paste for lead free process. One sample paste received of SN100C.After reflow SN100C type paste joint looks brighter and good compare to SAC305. Please help me which paste is good for smt process?
Electronics Forum | Thu Aug 17 09:01:26 EDT 2006 | russ
Well my friend, flux chemistries have changed. I do not want to drive you over edge but I use a straight ramp for lead as well!!!! Let the product dictate process!! I only soak when the delta T is not manageable with straight ramp. Please do not
Electronics Forum | Mon Nov 15 08:41:34 EST 2010 | babe7362000
Has anyone else had failures with Leds from EOI? The part number is EOZ-ZARNCD0-DG. We are using a lead free no clean process using SAC305 solder. These are thru hole parts and our max temp is 244 for 3 seconds. Please if anyone else had issues
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