Electronics Forum | Fri Jun 15 12:12:34 EDT 2007 | realchunks
Hi Ed, It all depends on more info needed. How many preheaers do you have in your wave? One, two, three? Are you talking bottom side preheat? What size boards do you run and what type of parts are on it. Typically, preheat does several things; w
Electronics Forum | Tue Jan 13 10:25:29 EST 2004 | James
Do you have a different reel of parts. The leads could be oxidized from age. If everything else is soldering well, I would try that. Is your profile on your oven correct?
Electronics Forum | Thu Aug 28 21:43:23 EDT 2008 | davef
Couple of points: * We'll tell ya, although it's tough to tell from these pix, but it does not look like dewetting. It looks like nonwetting. * We don't think you're getting this product hot enough. We don't know where you measured the profile you po
Electronics Forum | Wed Aug 29 12:12:14 EDT 2018 | solderingpro
What type of flux are you using today? - Obviously you have already outlined the difference in the parent materials and parent material preparation, so using the same program/profile will not work; the characteristics are different. Try increasing p
Electronics Forum | Thu Aug 09 09:14:22 EDT 2018 | ks0707
Is there any special machines/equipment which are able to install FBGA parts on the very thin flex boards for Printing, Pick & Place, and Reflow ? Q2> Is there any Fixture house who can offer fixtures to enable SMT processes for those assemblies ? Q
Electronics Forum | Wed May 31 10:23:13 EDT 2006 | aj
Hi All, What does one do if he meets the criteria above? Is there an exemption ? aj...
Electronics Forum | Wed Sep 04 13:32:22 EDT 2019 | bobpan
Try these things: 1. Do a function 30....your nozzle height should consistently be around 200 +/-20....but whatever number it does find it shouldn't change. (with nozzle on) 2. Most times its the z-bellows....an old z bellows that has a worn out spri
Electronics Forum | Wed Sep 04 09:47:41 EDT 2019 | smrsteve
Hello All, I've just bought a Quad 4c pick & place machine. It's so close to actually building boards, but just doesn't quite get there. I was wondering if there's somebody out there with experience of these machines that might be able to help...?
Electronics Forum | Wed Jul 08 09:05:09 EDT 1998 | Jon Medernach
Going to SMT from THT you will find a tremendous difference in machine reliability. All the chip shooters are 99.9+%. Fuji has the largest market share in the US so you will hear alot about Fuji. In the Far East the Create chipshooter by Panasonic
Electronics Forum | Fri Mar 16 10:04:41 EDT 2012 | davef
We'd repair a drop board like this. Here's what our old friend Jeff Ferry said is a published article ... When boards lose their edge: when the corner of a circuit board breaks or is damaged, the problem cannot be ignored by Jeff Ferry One of the m
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