Electronics Forum | Mon Jul 19 08:52:02 EDT 2004 | Omega
Try spraying flux on top of the loaded PWB when you put it on the conveyor. The tackiness of the flux does a pretty fair job of keeping the axial leaded parts down to the board. This takes more cleaning, but it has worked wonders for me on assemblies
Electronics Forum | Thu May 30 13:46:00 EDT 2002 | davef
Consider NOT getting involved in those little POS chunks of sheet metal. * They're expensive. * You never have the one you need. * Even if you DO have the item you need, you probably will not be able to locate it. * It's all but impossible to c
Electronics Forum | Thu Apr 10 14:35:18 EDT 2003 | russ
What flux are you using to put them back on? you should be able to adequately clean the site after removal with alcohol or water depending upon the type of flux. "White grungy" usually comes from a liquid flux such as Alpha 857 being squirted on th
Electronics Forum | Tue Jan 31 09:41:06 EST 2017 | emeto
If there is no specific quality reason, stay with paste. More processes you add, more points of failure. They don't need a lot of paste to get attached to the board. The ones I used were 8mil round apertures, so I did cut 1:1 on a 3 mil coated stenci
Electronics Forum | Fri Jun 11 16:19:04 EDT 2010 | bandjwet
Does anyone have good/bad experiences with tacky fluxes for rework? Which vendor/formula should I start with? Which ones should I stay away from? Thanks! BWET
Electronics Forum | Fri Jan 31 10:04:14 EST 2020 | emeto
Jinesh, My initial suggestion is you have too much solder past. Please try to reflow a few of these parts without solder paste. Colse aperture, put some tacky flux on this part location and give it a try. I bet you will not see any voiding.
Electronics Forum | Wed Apr 21 11:33:20 EDT 2004 | tigerlordgm
As one of our small batch processes, we place BGAs on PCB without using solder paste. We apply tacky flux to a predetermined height on a pallet, "dip" the BGA into the tacky flux to wet the solder balls to the set height, and then use a BGA rework st
Electronics Forum | Tue Jul 28 07:02:59 EDT 1998 | smd
Right now we are taping the goldfingers which is effective but also expensive. Also, some tape was leaving yellow marks on the goldfingers. We're trying the so-called goldfinger glove from Steven's Products. It's a very small company (probably one gu
Electronics Forum | Mon Aug 03 08:29:24 EDT 1998 | Dave F
SMD: Sounds interesting. What is the contact information on Steve? Dave F | Right now we are taping the goldfingers which is | effective but also expensive. Also, some tape was leaving yellow marks on the goldfingers. We're trying the so-called go
Electronics Forum | Tue Apr 21 20:58:11 EDT 1998 | Steve Gregory
Mike wrote: ...I did buy "Surfboards" built for this purpose but they averaged about $5.oo a piece, and when your running 20 trainers, and they still have to be soldered in place. $5 a test is kinda high when evaluating a 32 cent chip...(snip) Hi
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