Electronics Forum: no solder fillets (Page 7 of 66)

water soluable or no clean flux?

Electronics Forum | Mon Sep 20 08:21:52 EDT 1999 | Mohammed saad

Hi all, We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we need your advice. We are producing VGA cards and mother boards for PC's all components to be wave soldered are TH, the SMD is done

A.O.I - no salesman pitch pls

Electronics Forum | Thu Jul 17 11:36:41 EDT 2003 | caldon

My AOI wish list would include features that: 1)Character recognition, 2) Correct Placement (including missing), 3) Solder joint inspection (solder present), 4) Shorts, 5)Polarity check, 6)Coplanarity, 7)gerber/or Cad compatible (no gold boards), 8)e

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 12:03:54 EDT 2008 | wavemasterlarry

My people said I was needed again here on The Forum. Thanks Mr Head for the goddos on wave soldering. It's a hard process to grasp and not every one nows how to adjust eveything properly. I can tell you regognize expertise when you see it. That s

QFN PCB Pad no Drain Hole

Electronics Forum | Sat May 18 15:19:55 EDT 2013 | isd_jwendell

OK, I've now read all of the documents you referenced. The problem still remains regarding the thermal vias and how to minimize scavenging. All the docs acknowledge top and bottom tenting, and it's problems. TI says don't do it. Plugging is usually n

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 08:31:55 EDT 2008 | grics

Sorry for the confusion... "WML" is a who... Wave Master Larry... He is a person on the forum who has a degree from Soltec? I don't remember... I was hoping he would have left a comment or some info that we could all learn by. (I am not sure how thi

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 12:18:03 EDT 2008 | grics

Why yes, I regognize all the best. WML, I have an idea... I am going to call it, the Dunker. Instead of anyone foaming, I will get the wave operators to throw the boards into a rubbermaid tub full of flux/gasoline mixture and send through to the wav

no clean flux + wave soldering issue

Electronics Forum | Fri Aug 29 07:55:29 EDT 2008 | realchunks

I agree with Pat. We specify matte finish on all our boards. Once in a while our QC Dept lets in some glossy finishes in and then do their victory dance at the wave chanting "Wut ya gunna do about!?! Wut ya gunna do? Process outta control! Giggi

Leaded part in no lead process

Electronics Forum | Mon Nov 29 10:13:02 EST 2010 | vetteboy86

My research starts here. I'm just beginning to research the effects of using a leaded part in a no lead process. Before I began, I know there are temperature differences. The part in question has a 260 C spec. Next I would like to find out if any c

Re: water soluable or no clean flux?

Electronics Forum | Tue Sep 21 02:51:06 EDT 1999 | Mohammed saad

Thank you all for your help. about your question Wolfgang, I am using no-clean solder paste from Kester. Mohammed Hi all, We have a little discussion here about the suitable flux for a certain process, as all of us are beginners we ne

QFN PCB Pad no Drain Hole

Electronics Forum | Wed May 22 19:10:47 EDT 2013 | anvil1021

We do a lot of these devices and I guess I am not familiar the term "Dry Solder". The QFN device is not designed to have a drain hole, but needs to have thermal vias to control heat in most cases. We have used every possible gnd pad design and modifi


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