Electronics Forum: amtech (Page 2 of 5)

Ceramic + Hi-temp solder

Electronics Forum | Wed Apr 21 12:03:59 EDT 1999 | Michael N.

I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is about

SAC305 Water Soluble Pastes

Electronics Forum | Tue Jun 05 11:52:01 EDT 2007 | rgduval

We just tested AMTECH's LF4300 with good results. Excellent reflow/profiling capabilities, good processing. And decent cleaning. I say decent cleaning, because we did run into a small issue. While using Qualitek's LF paste, we experienced a lot o

Amtech 4300 no-clean+washable flux

Electronics Forum | Sat Oct 29 20:29:30 EDT 2016 | adamjs

Posting here because all the threads asking for feedback on it are locked. We have been extremely happy with the 4300 tacky flux for BGA attachment. Not only is it both washable and no-clean (i.e. wash-optional), it was also the only tacky flux tha

Solder cream kits (flux and powder separately)

Electronics Forum | Fri Mar 03 09:05:59 EST 2000 | Istv�n Dominik

I received data sheets from a paste distributor in which Amtech gives a recipe how you can mix solder cream. They deliver the flux in plastic jars and the solderpowder in foil packages. You must mix the two components with a simple mixing tool. Has a

Solder cream kits (flux and powder separately)

Electronics Forum | Fri Mar 03 09:05:59 EST 2000 | Istv�n Dominik

I received data sheets from a paste distributor in which Amtech gives a recipe how you can mix solder cream. They deliver the flux in plastic jars and the solderpowder in foil packages. You must mix the two components with a simple mixing tool. Has a

Steaming boards

Electronics Forum | Tue Apr 22 13:05:01 EDT 2003 | Mr. B

I am curious on some opinions on cleaning of boards. We have a board wash but after the wash we still need to stem them for better cleaniness. The timed steaming is prox. 2 mins a side and by the way this is a medical board. So if you got and suggest

Ni/Sn plated parts

Electronics Forum | Tue Jun 15 12:54:34 EDT 2004 | jsmith01

It seems like the break is happening between the sn and ni. The parts are dull in appearance will not take solder even with an iron after they come off so it leads me to believe that there is only ni left on the part. The parts are liquidous for ab

Lead free components in 62/36/2 paste prob.

Electronics Forum | Wed Nov 23 17:33:23 EST 2005 | adlsmt

Are the components 100% tin plated? Thats what we are buying and we have no problem at all soldering with the same profiles we always have used and we use the same alloy as you but different mfg. We have not had problems soldering tin plated parts wi

Midchip solderballs (MCSB) on pb-free

Electronics Forum | Tue Sep 26 12:01:30 EDT 2006 | sliebl

We have solved our MCSB problems by using standard homeplate designs on all of our resistors and caps. I use a 50% taper and have achieved great results with 0402-1206 parts using both tin/lead and SAC305 paste. We use Amtech paste.

Cleanning no clean residu

Electronics Forum | Fri Oct 26 07:41:26 EDT 2007 | bbl

We recently changed to an Amtech no clean paste and flux that is washable. So far excellent results. Far superior to the water soluable paste we were using. Fewer solder balls, longer life in printer, boards can be left up to 5 days and still come


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