Electronics Forum | Mon Dec 14 13:16:11 EST 1998 | MMurphy
| DO you know of an Industry Standard that describes solder paste geometries requirements? | Check out www.alphastencil.com and select "Stencil Design Guidelines". This will at least give you an idea of how to deposit optimum paste volumes based on
Electronics Forum | Wed Dec 16 10:21:44 EST 1998 | HallJ
| Has any body tried reflowing QFP's on both sides of a board. | This has been done for a long time. The only thing I have seen that could start to cause problems is when you get up to the PQFP208 's that are weighing 10g or more. For this You can p
Electronics Forum | Thu Dec 10 13:42:03 EST 1998 | Steve Stevens
I am interested in any information regarding possible failure mechanisms associated with active die (GaAs or Silicon Semiconductors) as a result of being exposed to RMA type fluxes and/or typical SMT industry cleaners. I know that corrosion is one s
Electronics Forum | Tue Dec 15 22:23:52 EST 1998 | Erhan Kaya
If that's what you mean, here's what we call them: ROBBER PADS... Pretty close to the "thief" I guess. Those come with the design and if the wave soldering direction is not known at the time of design and/or there's no real estate limitation, the rob
Electronics Forum | Wed Dec 09 13:25:16 EST 1998 | Martin J. Ibarra
Hi, I know for sure that by controlling temp. and humidity conditions in SMT assy lines room, one gets advantage in screen printing, adhesive dispensing, and pick&place machines mainteinance. Does any one have any advice on why else is a clean room
Electronics Forum | Wed Dec 09 07:48:23 EST 1998 | EFData
Does anybody out there have any special insights into utilizing no clean paste in high frequency RF applications? I would imagine there may be some issues with solder balls that would affect functional test (Earl, do you have something for me here?)
Electronics Forum | Tue Dec 08 15:48:11 EST 1998 | John
| I HAVE SEEN ADVERTISED AN AIR NOZZEL THAT USES COMPESSED | AIR TO SPEW OUT EITHER HOT OR COLD AIR. I HAVE NEED OF | SUCH A DEVICE. I DO NOT HAVE THE MANFR. OF THESE. | ANY SUGGESTIONS ?? | Try Exair corporation. 1-800-exair is the phone #. I thin
Electronics Forum | Sun Dec 06 08:34:15 EST 1998 | Process Engineer
| Does anyone do an incoming inspection of Fuji CP Type nozzles? Or, do you have a nozzle qualification program? | I recently conducted an extensive qualification process of Fuji type nozzles (Cp), which included incoming inspection and testing. I
Electronics Forum | Sat Jan 09 21:25:12 EST 1999 | Jim Bussey
| Does any body knows of a used Universal Wire Wrap machine in a good operational condition? | Please contact with me or with Roni Haviv (972-7-998-6673) | Thanks. | We have a Contact Systems pointer wire wrap machine, it hasn't been used for 3 or 4
Electronics Forum | Wed Dec 02 05:20:57 EST 1998 | Jim Mitchell
Quad still sells a low end convection/IR bench top oven for about $15,000. (ZCR 412B) It is limited to a 12" board but may work for your application. IR ovens have gone out of favor recently. There should be some older IR ovens for under $5,000 f
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