Electronics Forum | Thu Dec 07 10:23:36 EST 2006 | fredericksr
Has anyone experimented with the Amtech 4300 flux that claims to be a no-clean flux that is easily removed with water? If so, how did it go? Is this flux truly removable with water only while creating adequate solder joints? -OtheRuss
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
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
Electronics Forum | Thu Mar 27 16:21:33 EDT 2008 | mikesewell
AMTech makes REL0 (4300 series) pastes that are water washable. You might want to try a sample...
Electronics Forum | Sat Jun 05 13:38:22 EDT 2021 | ppcbs
For Linear Tech LGA's we solder bump the LGA using a .30mm solder ball then reflow with a tacky flux. This will provide a void free solder joint and adds a little height to the solder joint in case you use a flux that you want to clean from under th
Electronics Forum | Tue Apr 11 10:30:46 EDT 2000 | Jeremy Smith
I am having a problem with some joints on a 100 pin pqfp and few different soics on one particular board. When viewed a 8x with a "Mantis" inspection scope the joints look as though they wetted to the ic leg but when probed the leg will pop loose.
Electronics Forum | Tue Jun 05 20:46:25 EDT 2007 | rfrog
I, too, have finished qualifying the Amtech paste for a dispensing application. We will be experimenting with the component soldering/stencil printing next. The stuff has proven to provide the best of both the no-clean/low solids and water washable
Electronics Forum | Thu Jul 07 07:49:42 EDT 2005 | mmjm_1099
AMTECH NWS-4200-4H3 is the best I have come across for a leaded process. As for lead-free I did some studies and we liked the Indium 3.1 and 5.1.
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
Electronics Forum | Fri Dec 27 14:27:40 EST 2019 | slthomas
We switched to a REL0 T3 paste, Amtech LF-4300. It wets the castellations more consistently. I believe that in our case it was more of a plating wetting issue with the parts, but yours sounds more like a pcb finish or thermal issue. That larger pad
