Electronics Forum | Tue Nov 01 12:18:09 EST 2005 | chunks
Is this causing shorts? Or are your pads that wide?
Electronics Forum | Thu Sep 07 15:48:10 EDT 2006 | pr
Gosh, I hope they are still able to locate all the skips and shorts!!!!!
Electronics Forum | Thu Jan 18 12:53:19 EST 2007 | Heywood Jablowme
What is your setting on screen mask printer, stering solder paste, profile reflow etc?
Electronics Forum | Fri Dec 07 12:01:14 EST 2007 | elg1
The 3000 hours is correct. It was a VERY fast ROI! Back to the discussions on the earlier threads, some of this information is correct. If you exceed the design limitations for keep out requirements and your board tolerances vary, you can have twe
Electronics Forum | Wed Sep 02 08:52:13 EDT 1998 | Justin Medernach
| | We are experiencing shorting on a BGA. The part has a 1mm pitch with a 196 I/O count. The problem seems to pop up without warning & disappear in the same manner. | | Our pad design is .020" diameter pads with .025" solder resist diameter. Th
Electronics Forum | Tue May 29 20:09:50 EDT 2007 | stepheniii
http://michaelbluejay.com/electricity/cooling.html this page has it right about minimizing AC energy use. With the wave, look at two machines. One you turn off, the other you let idle. The one that is turned off is using no power. The other one is
Electronics Forum | Tue Aug 20 11:24:46 EDT 2002 | yngwie
Experts, Is there any reference to the best wetting time when doing manual soldering in order to get the most reliable joints i.e to avoid thick intermetallic line formations. I heard people says, the shorter the better, but how short is short...sa
Electronics Forum | Fri Feb 21 19:49:36 EST 2003 | MA/NY DDave
Hi Good Luck Neil, When I first saw this process described, what you are experiencing was my first visual thoughts. Partial filling as well as huge solder voids inside of the joints. I figured for low reliability product or short life maybe this t
Electronics Forum | Tue Oct 16 09:17:29 EDT 2001 | andyc
Have you thought about wave solder contamination ? . We had a similar fault where glued chips were being shorted out due to "slivers" of solder dross being deposited onto the card . These dross slivers were being generated because the solder bath had
Electronics Forum | Fri Jun 20 09:38:56 EDT 2003 | caldon
Hi John- First, I do not have first hand experience so my input is pure theory. This type of package (in Some Cases) has a center grounding bonds and leadless legs ups the difficulty tremendously. With no stand-off from the Balls(or Legs) when the so
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