Electronics Forum: no solder fillets (Page 8 of 66)

Re: water soluable or no clean flux?

Electronics Forum | Mon Sep 20 14:46:03 EDT 1999 | Dave F

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 S

Re: water soluable or no clean flux?

Electronics Forum | Mon Sep 20 17:20:08 EDT 1999 | Earl Moon

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

Re: water soluable or no clean flux?

Electronics Forum | Mon Sep 20 17:36:46 EDT 1999 | Dave F

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 so

Re: water soluable or no clean flux?

Electronics Forum | Tue Sep 21 07:47:31 EDT 1999 | Wolfgang Busko

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

QFN PCB Pad no Drain Hole

Electronics Forum | Fri May 31 12:50:42 EDT 2013 | spoiltforchoice

Is this a "thermal balance" issue? In the 2nd image you have a group of pads blobbed together as one giant pad. IMHO this is a bad idea, QFN's rely heavily on the magic of your paste and good PCB design to get good alignment. When your solder paste i

Re: water soluable or no clean flux?

Electronics Forum | Mon Sep 20 09:02:34 EDT 1999 | Wolfgang Busko

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 S

High frequency application V.S no clean flux

Electronics Forum | Mon Jul 08 03:09:12 EDT 2002 | Benny

Hi all How can I find the technical paper or source of information about using No-clean flux with high frequency apllication. High frequency mean more than 2 GHz - 5 GHz. I heard from my colleague that No-clean flux residue on board effect to high

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 09:30:20 EDT 2008 | patrickbruneel

Omid, No-clean fluxes need to be used right out of the can without thinning. In the past with RA and RMA fluxes you could adjust or thin them to your desired density because they had plenty of solids up to 30%. No-Clean fluxes have a lot lower solid

no clean flux + wave soldering issue

Electronics Forum | Thu Aug 28 16:03:08 EDT 2008 | wavemasterlarry

I guess you're adding the gas to keep the fingers clean - sounds likeyou got your threads mixed up on the Forum. Any way I would suggest not doing this. Gas is pretty flammable. I have pix of one our Hollis cleaning machines going up in flames cau

QFN PCB Pad no Drain Hole

Electronics Forum | Fri May 31 18:00:55 EDT 2013 | hegemon

With regards to first picture.(Large themal vias) I would attempt to measure the area of the ground pad, less the area of the "drain" holes or Thermal Vias. From that result I would reduce the aperture to account for about 50% coverage of that remai


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