Electronics Forum: do not install part (Page 1 of 19)

How to install FBGA ICs on both sides of Flex boards with no stiffeners ?

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

Wave Pre-heater not working

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

SOT 23 not reflowing

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?

Solder not reflowing properly

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

not good soldering

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

Part not available RoHS Compliant

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...

Quad 4c not placing components

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

Quad 4c not placing components

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...?

Re: What do you expect to hear?

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

Damaged PCB.. what do you think?

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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