Electronics Forum: paste pth (Page 1 of 12)

Pin friendly paste

Electronics Forum | Wed Oct 12 03:20:42 EDT 2011 | pinktoh

Any recommendations for a good PIN FRIENDLY PB-Free ROLO solder paste? My process is OSP double-sided reflow with PTH wave soldering.

No-clean solder paste

Electronics Forum | Thu Mar 22 17:38:44 EST 2001 | davef

OK, lemme take a different angle on this, �cuz I forgot to touch on this when I first responded. I mentioned a study ["Evaluation of Low Residue Soldering for Military and Commercial Applications: A Report from the Low-Residue Soldering Task Force"

Tin Lead BGAs in leadfree paste ( pb-free paste )

Electronics Forum | Mon Mar 06 22:30:12 EST 2006 | mainenetservices

We have a customer transitioning slowly to lead free due to necessity rather than a need to comply i.e. some of their BGAs can only be purchased Pb free only. So for this we would want to produce them a leadfree soldered PCB (not necessarly RoHS comp

pin in paste and hole diameter

Electronics Forum | Sun Mar 28 18:49:36 EDT 2021 | mekmat544

Hello, I would like to ask you if there is some formula how to calculate PTH hole and annual ring for pin in paste technology? Thank you. Mekmat.

Lead Free Component on solder paste (lead)

Electronics Forum | Wed Nov 20 09:27:28 EST 2002 | davef

There's a fair number of issues with lead and bismuth solder alloys: * Lead and bismuth alloys can form a eutectic composition of Bi52Pb32Sn16 in the grain boundaries. Melting point of the eutectic alloy is 95�C [~96�C?]. * Fillet lifting of PTH du

Assembling one side SMT one side TH

Electronics Forum | Wed Aug 10 16:37:35 EDT 2011 | davef

Yes, there are ways to machine process boards like this. The devil is in the detail. In no particular order, your choices are: Process flow #1: * Print chipbonder on the surface mount side for SMT parts * Mount SMT components * Cure adhesive, if r

Re: SMT handplacements

Electronics Forum | Tue May 16 21:25:23 EDT 2000 | Dave F

Alek & Ramon: What are we talking about: * Presentation: Feeders / trays / etc * Pick-up: Nozzels / grippers / etc * Reflowing paste for PTH parts Good luck Dave F


Electronics Forum | Thu Jul 20 12:22:33 EDT 2000 | Jeanette

I am just starting to investigate the fesability of this process and have very limited knowledge. Is there any problems inserting components on the same side as the paste on a PTH. When a component is inserted in this way is there a problem with th

Dispensing Solder Paste

Electronics Forum | Wed Mar 16 21:07:50 EDT 2011 | jacki

Hi pls let me know if someone is using dispensing machine to apply solder paste for PTH components. I am facing the test , applying the sufficient amount of sodler paste into 0.4mm pitch holes. in the other hands, pls advise me if you are working for

Wave Soldering Thick PCB's

Electronics Forum | Mon Jan 28 19:58:58 EST 2002 | davef

Well, reflow certainly would increase your preheat, wouldn�t it? On the other hand, some PTH [and SMT] components cannot bear the heat of a reflow oven. Some boards will never see proper barrel fill, because of either: * Design of the board. * Sl

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