Electronics Forum | Sat Jul 29 12:50:31 EDT 2000 | Larry Johnson
Okay, here is the deal. When result is turned on in trace, I have parts that place fine, square as can be. When I turn result off, they skew. This isn't on all parts, I have tried different vision types, with no improvement. Currently using #100.
Electronics Forum | Wed Jul 19 20:54:26 EDT 2000 | Dave F
Darby: Airsleds and laser pointers Airsled, 70A Aleph Dr., Newark, DE 19702 800.247.7533 fax 302.996.6468 Aero Go 1-800-426-4757 Ask for Jack Air Puck (McMaster) When using "airsleds" be aware these: * Get hung-up on expansion cracks * Will "take-
Electronics Forum | Thu Jul 06 02:08:27 EDT 2000 | Ralph Landry
I need to build a couple of prototype SMT boards and need some recomendations on some adhesive or epoxy to use to hold the parts down prior to hot air soldering. I find that some parts want to skip across the board when heated, or they want to walk
Electronics Forum | Fri Jul 07 11:06:44 EDT 2000 | John O'Brien
You ought to consider Data Matrix directly marked on the boards It can be done with laser, inkjet, or other permanent marking methods. Never falls off, can be read even if 30% is obliterated. For an example, check any AMD (K6, K7) or Intel Pentium c
Electronics Forum | Fri Jun 23 08:52:16 EDT 2000 | Dave F
John: Seek your answers in the archives. As I recall someone said: � Biggest cause of BGA shorting was out-gassing in-package moisture. � Removing shorts w/o removing the device: - Preheat the board - Lower the nozzle and heat the device - Lift the
Electronics Forum | Mon Jun 12 09:49:46 EDT 2000 | Mark Charlton
Miguel, Ask your Philips salesman or local representative for a copy of the VIOS software configured to run on a stand-alone PC AND a hardware key. With this software, you are basically programming your machine at your desk as long as you have CAD
Electronics Forum | Thu Jun 01 10:48:21 EDT 2000 | Jeremy
I am having a problem with the green solder mask flaking off exposing bare copper. The mask was defective from the board manufacturer. My problem is the boards are already assembled and we are just finding the problem. Is there a standard that cover
Electronics Forum | Fri May 26 05:49:09 EDT 2000 | Richard Wilders
1.67. A lower accuracy will result in many off-pad flipchips; this means a lot of displacements. And there is no chance at all the flipchip will self-center back to the correct placement spot. I think you'll have to evaluate machinery that is capabl
Electronics Forum | Fri May 19 14:33:30 EDT 2000 | Lawrence A. Groves
I did this at one point and found that the handleing is critical. What usually happened is that two of the PCBs would touch and the edge of one would scrape the parts off the other. I tried a couple of different epoxys and ended up with a CIBA prod
Electronics Forum | Wed May 17 12:22:54 EDT 2000 | JAX
Ramot, Without further explanation everyone here is just taking stabs at it..... Sounds normal, I'm game! Have you looked at board finish(HASL?)?? Measured paste height?? Are they always off in the same direction? If not, Handling?? What are the sp
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