Electronics Forum | Sat Apr 23 13:54:09 EDT 2005 | Indy
I don't know wat are the types.. but wat I can tell you is you need care while profiling them. it needs a peak of around 215-220 if Sn/Pb.. at the ball. So the plastic on top will reach a higher temp. Care must be taken so that it doesn't roast. al
Electronics Forum | Sun Apr 24 09:12:00 EDT 2005 | davef
We're not sure what your customer is talking about either. Gold and tin form an intermetallic compound [IMC] that can cause poor solder connections. To minimize the potential of a problem, keep gold to less than 3 percent of the metal. [Search the
Electronics Forum | Sun May 29 15:12:46 EDT 2005 | Philippe
I have been following this thread with a great interest. However, the rules or legislations that control RoHS standards is maybe questionable, but I can't see why people/companys have so hard to think about the "next generation"? The fact is: RoHS is
Electronics Forum | Wed Apr 27 07:16:40 EDT 2005 | jdumont
Thanks a lot guys. The part dims are in mm by the way. So last night i was looking at the .pcb file and saw that the pad size and stencil are both .013" while the ball on the BGA is .018" (sorry for switching from metric). Is this ok or can i have en
Electronics Forum | Wed Apr 27 13:49:11 EDT 2005 | Shean Dalton
Hi Sarag, We share Sara's described experience with cleaning No-Clean/Low Residue flux residues. We can add that of the Low Residue residues, Indium SMQ92J is one of the more challenging flux residues to clean. That said, we have had repeated succ
Electronics Forum | Thu Apr 28 07:52:25 EDT 2005 | Base
Just have a look at the archives and see what you come up with. There is a hell of a lot more trouble listed there on the Mydata stuff than there is on the Emerald or it's Topaz twin. User-friendlyness? The GUI on the NT-based Emerald (that would be
Electronics Forum | Thu Apr 28 13:23:56 EDT 2005 | Frank
The Juki KE-2060 machine has a very good programming tool for programming odd components. I have thrown quite a few odd connectors and odd BGA at it and the machine placed them all. Custom nozzles can be pricy, so I always try to find a way to use
Electronics Forum | Fri Apr 29 07:14:13 EDT 2005 | jdumont
Recently we have been seeing issues with an inability to print through .45mil apertures on our stencils. We have also been seeing a alot of solder balls under some BGAs (some worse than others). I was checking the refridgerator (small mini fridge) we
Electronics Forum | Sat Apr 30 00:28:46 EDT 2005 | thaqalain
I failed in a Soldering interview.My recruiter send me for PTH wave soldering. The company given me a small board and asked me to take out rectangular prismatic shape PTH components,I tried to put two guns around solder bonds one by one alongwith flu
Electronics Forum | Mon May 02 10:18:30 EDT 2005 | Frank
Juki KE-2050R (or any of their R-series machines). They have the ability to automatically learn pick positions on paper tape feeders and they can zoom in on pick locations (x2 or x4), so this will help when they release their nozzle for 01005 compon
