Electronics Forum | Tue Feb 08 04:27:55 EST 2011 | thomas111
hi, I am a Hardware designer . One of my products is undergoing a Reliability test in which a resistor shows a high value on board from its specified value .However it retains the original value when its cooled under room temperature. The resistor
Electronics Forum | Tue Jul 19 14:29:12 EDT 2005 | ppwlee
What are possible failure analysis (destructive or non-destructive and what are the pro/cons) I could conduct on the component level (of an IC) to determine failure mode/root cause? We are measuring internal shorts between leads on a SOIC after sold
Electronics Forum | Tue Jan 15 06:05:37 EST 2002 | Romain
Dear all We have since few weeks problems with BGA solder joint integrity on ENIG finish. Under relatively very flexible of the FR4, the joint breaks between ball and PWB. When we take off the BGA for analysis, some of the pads seem very flat, totaly
Electronics Forum | Wed Oct 25 10:11:09 EDT 2000 | Wolfgang Busko
Paddesign, aperture size and stencil thickness determine the amount of solder for your joint. Once you have found suitable parameters you need to control the volume of your paste deposit which is influenced by printer settings, paste condition, stenc
Electronics Forum | Sat Jun 28 08:17:21 EDT 2003 | davef
We form a barrier to contain the dye, but regardless it is messy. Actually, we no longer use dye, per say. We use the stuff machinists use for staining metal. Look here for hints: * http://www.ivf.se/Elektronik/dye_penetrant/edefault.htm * http:
Electronics Forum | Fri Dec 31 10:16:22 EST 2004 | Brad
Can anyone recommend a company thats local to New England that does extensive solder joint analysis.
Electronics Forum | Sat Jan 01 10:14:30 EST 2005 | davef
East coast, solder connection failure analysis labs in the vacinity of New England are: * American Competitiveness Institute, Electronics Manufacturing Productivity Facility, One International Plaza - Suite 150, Philadelphia, PA 19113(610) 362-1200 F
Electronics Forum | Wed Oct 06 22:55:14 EDT 2004 | davef
Your customer is correct. Components should not fall a board during a reasonable drop test. A shear test poorly represents a drop test. A drop test represents a drop test very well. If you want to proceed with shear testing, search the fine SMTne
Electronics Forum | Wed Mar 04 13:06:45 EST 2015 | cyber_wolf
A full blown analysis could become very expensive. There are many test that can be performed. 3D acoustic microscopy, X-ray, Dye and pry,and I'm sure the list goes on. Typically, a micro-cross section report of the BGA solder joints will show you w
Electronics Forum | Tue Sep 25 23:09:23 EDT 2018 | franknguyen
Hi, We are PCBA production company which factory's located in Vietnam. Somtime, we have to analyse failure of product to find out the root cause (ex: Micro-crack of solder joint under BGA IC...). We are searching labs around Asia (Vietnam, Malaysia,
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