Electronics Forum | Tue Sep 15 11:34:20 EDT 2015 | emeto
Hi Dan, you got the basics, so follow your plan. With these machines the most critical part is the fluxer. Most of the m get clogged easily and should be maintained very good.So if there is any tubing, fitting or other type of connector that might b
Electronics Forum | Mon Oct 05 14:38:03 EDT 2015 | deanm
We are planning on using a chip that is available in LGA or Sn/Pb balled BGA. The package dimensions are the same. Pitch = 1.27mm. We are using a Sn/Pb soldering process and no clean paste (wash afterward) for high reliability Class 3 assemblies. Fai
Electronics Forum | Sat Nov 07 18:18:58 EST 2015 | ttheis
Hi everyone, We just got our first wave soldering machine operational (novastar 8s) and its working great. I'm just a little unsure about how to best maintain the foam fluxer daily. Do you drain it from the machine each day or just cover the flux t
Electronics Forum | Mon Dec 07 14:55:41 EST 2015 | clydestrum
So I have an issue coming up that I'm not too sure how to handle. A board was designed with the wrong footprint for a 3-lead transistor in which the single-lead side has a much larger (think thermal pad for qfn) copper land than what is meant for the
Electronics Forum | Mon Dec 14 10:51:02 EST 2015 | dyoungquist
We have a two Heller ovens, 1707EXL (2006) and 1707MK III (2014). We use them for lead and lead-free reflow soldering including all the tricky components such as BGAs. You may want to go with 8 or 9 zones if you are running high volume but a 7 zone
Electronics Forum | Fri Dec 18 12:25:40 EST 2015 | deanm
We are required by AS9100 to keep expired material/chemicals off the floor. Examples include solder paste, flux, adhesives, conformal coating, etc. We have a system in place to prevent such occurrences but once in a while something is not accounted f
Electronics Forum | Thu Feb 04 12:01:07 EST 2016 | g2garyg2
Hi Luis A white mask typically helps in the marking process since you are not reliant upon the PCB layers to create the contrast. Laser marking is really an etching process, so if your laser is set properly (power and focus) the goal with mask is to
Electronics Forum | Fri Feb 26 23:54:48 EST 2016 | padawanlinuxero
Hello guys Guys I am looking for a IPC 4552 can someone help me with a digital copy, we are a small company and having lots of problems with a ENIG board that goes thru the solder wave and sometimes the golden pads, well they dont look golden more l
Electronics Forum | Thu Apr 21 20:09:18 EDT 2016 | adamjs
I have tried adding more paste but get shorts and excess flux as I get above a 7 mil stencil. You do need the thicker stencil. To prevent the shorts, you need to have your pick-and-place machine probe the exact height of the board (at multiple loca
Electronics Forum | Thu Apr 14 22:11:42 EDT 2016 | davef
Enough pluses and minuses to get things started are: * Mouse bites (+) boards can be irregularly shaped, no board redesign (-) no one knows how to seperate the things, requires layout consideration * Singulation (+) boards can be irregularly shaped (
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