Electronics Forum | Tue Oct 27 10:15:54 EST 1998 | Chrys
| We have installed a Sonoflux atomized mist fluxing unit (Model 9500)on our Future 1 wave solder machine. We are concerned that the retrofitting of this unit may not have been appropriate for our equipment, as we are now experiencing many problems
Electronics Forum | Fri Oct 23 14:58:40 EDT 1998 | Dave F
| We've got a continous flow cooling problem from our wave solder process into ICT. Our current configuration is a flatbelt conveyor into a manual de-pallet process, operator then places on to an edge conveyor. We've tried muffin fans, look good bu
Electronics Forum | Mon Jul 17 17:37:10 EDT 2006 | russ
Okay, now we can get rolling here. Here is a couple of things about selective wave that Ihave found very helpful 1. Make sure that no parts on back side are in excess of .15". if they are we skip; out in SMT and handsolder if labor costs justify.
Electronics Forum | Wed Dec 23 09:11:56 EST 2009 | lynn_norman
In a former life, we used hi temp solder. I've heard of adhesive and taping methods, we just never used them. We too had a "golden" assembly that we would use for routine profiling. Our requirement was to attach a TC to the lowest thermal mass, hi
Electronics Forum | Fri Sep 25 22:00:22 EDT 1998 | Mike C
| O-H-H-H-H-H-H-H Lawdy, lawdy... | My babuh done left me... | my dawg pee'd on my leg... | my cornflakes are all poopy... | don't make me hafta beg... | I got's dem backplane blues, o-h-h-h-h-h lawdy..." | OH! | | Hi there! Scared me fer a secon
Electronics Forum | Thu May 09 17:28:33 EDT 2002 | davef
There is no IPC specification, nor should there be. * There are just too many peculiarities in the design and fabrication of PWB. * The issue is not defining how to store boards. The issue setting expectation for reliable products and allowing you th
Electronics Forum | Thu Dec 20 23:56:35 EST 2007 | isd_jwendell
I run a prototype/small-run shop, so I'll include some recommendations too: 1) Don't buy a machine for just what you are doing today. Once you get into this field you will find demand to do more. 2) Don't scrimp on the stencil & machine. You will spe
Electronics Forum | Tue Dec 05 16:08:41 EST 2006 | dphilbrick
I would suspect if you had a full evaluation done there would be the same issue with Nickel oxidation everywhere. The reason BGA's fall off (or have solder connection issues first) is due to their size. A slight flex in the board has a much larger im
Electronics Forum | Fri Feb 15 07:52:27 EST 2008 | lococost
Dear SMTnetters, I've been told to have a look at finding a machine that could mill the leads of all PTH components to a certain height on an assembeled and soldered PCB. PCBs should be inserted in one side of the machine and come out milled on the
Electronics Forum | Fri Dec 18 12:25:40 EST 2015 | deanm
We are required by AS9100 to keep expired material/chemicals off the floor. Examples include solder paste, flux, adhesives, conformal coating, etc. We have a system in place to prevent such occurrences but once in a while something is not accounted f
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