Electronics Forum | Tue Jan 30 20:38:32 EST 2007 | davef
NASA Internal Advisory: NASA-Issued Return to Flight Wristbands Contaminated with Silicone [snip] 10. PROBLEM DESCRIPTION: Recently we have been made aware of a silicone problem associated with the "Return to Flight" wristbands. These wristbands are
Electronics Forum | Sun Mar 01 15:52:13 EST 1998 | Earl Moon
| From several months I am investigation about the VOIDS PERSENCE and his important as reliability. | One question now is : | It is possible that on the BGA components the voids are already present into the balls, before the mounting on the pcb ? | I
Electronics Forum | Tue May 28 13:46:27 EDT 2002 | Yannick
Hi, I know that this topic have been discuss before but I would like to know what kind of equipement do you use to check your BGA and to rework it? What should I look for before buying something. Some people said that is not a good thing to
Electronics Forum | Thu Mar 13 01:42:58 EDT 2008 | Sean
Thanks Real Chunks and Davef...Yours input is valuable to me. My inputs towards your question asked below: Questions are: * Why did you tell us the following? "This BGA is installed with heatsink (with hook at both side of the heat sink) manually b
Electronics Forum | Mon Jun 26 23:33:20 EDT 2006 | KEN
We saw this condition over 3 years ago. It sometimes is called "champagne bubbles". The intemetalic formation is interrupted due to the micro voiding reducing mechanical strength. I discovered this on lead free test vehicles for a major computer
Electronics Forum | Tue Jul 09 15:20:19 EDT 2002 | pjc
When you look at the capabilities of Combo machines they tend to sacrifice performance when compared to separate X-ray and AOI machines, meaning they don't do either the X-ray or AOI operations as well as a machine that was designed to do only one. A
Electronics Forum | Mon Oct 21 11:03:15 EDT 2013 | davef
I don't know about the papers that you seek. Try: Rakesh Kumar, Specialty Coating Systems, Inc., 7645 Woodland Drive, Indianapolis, IN 46278; 317-472-1266 F317-244-1215 rkumar@scscoatings.com
Electronics Forum | Thu Apr 28 11:14:27 EDT 2005 | bbarr
If you apply the RTV after coating, what happens to bond strength since you are now bonding to the coating and not the board? Will the caps still survive vibration and shock? I specify applying RTV before coating for this reason. Am I correct? I als
Electronics Forum | Fri Jul 12 12:04:51 EDT 2002 | jax
The Lizard Tongue is just a thin metal strip that, when actuated, slides over the BGA component and holds it down during transport. If you contact FUJI, they should be able to give you a part number, and install instructions..... maybe even the real
Electronics Forum | Mon Jan 25 18:15:39 EST 1999 | Joe
Greetings, We are discussing what should and what should not be baked and vacuum packed. Should we just concentrate on the fine pitch packages and the bga's? What about those components which come on blister tape, should they get baked and re-packed
