Electronics Forum | Sun Nov 01 10:34:43 EST 2009 | greg_diaz
If you have an even multiple of boards in a panel, then your layout can be altered to have 1 top 1 bottom in the x layout so that when you flip the panel the same layout is on the opposite side therefore requiring just one program.
Electronics Forum | Tue Oct 27 12:23:44 EDT 2009 | cyber_wolf
One thing a lot of people don't know is that the small X motor on MY machines have carbon brushes in them. If you do not replace the brushes before they wear out it trashes the motor.
Electronics Forum | Thu Sep 10 11:47:44 EDT 2009 | mikesewell
The adhesive should be a dielectric (insulator) by design, if not it could possibly short across leads of the very parts it's intended to secure. It normally isn't a concern - what is the surface resistance of your soldermask, bodies of ICs, ...etc.
Electronics Forum | Sat Sep 12 10:12:20 EDT 2009 | tylaburg
My customer wants an SnPb 63/37 BGA soldered using SAC305 solder paste. What data is avaiable showing the long term reliability of the intermetallics of the solder joints?
Electronics Forum | Sat Sep 12 14:10:38 EDT 2009 | GSx
First, make sure that 63/37 BGA can withstand higher reflow temperature of of lead free SAC305 GSx
Electronics Forum | Mon Sep 14 23:10:22 EDT 2009 | linseeg
The PCB green mask will become darker after few times IR reflow? What is the reason? Any acceptance spec refer to green mask requirement? Any method to measure the color level for PCB green mask? By naked eye or machine?
Electronics Forum | Mon Sep 21 20:45:55 EDT 2009 | davef
10.4. Pre-Cure Examination. Immediately after material application, the uncured conformal coating shall be examined for: a. Bubbles and Air Entrapments. These defects shall be broken by vacuum, with a sharp probe, or other appropriate tools. b. Bridg
Electronics Forum | Mon Sep 21 10:52:34 EDT 2009 | smtbox
Would you please post the part number of that controller and detailed picture you are looking for? We will try our best to assist you to resolve the problems.
Electronics Forum | Tue Sep 22 22:59:10 EDT 2009 | edison
Thank you for your help. I will contact you once I need to buy one.
Electronics Forum | Tue Sep 22 10:05:00 EDT 2009 | roland_grenier
Does anyone know how to calculate solder paste volume required to run a PCBA on an SMT line? I'm looking for a solder paste volume model which include paste waste. Roland
