Electronics Forum: solder failure (Page 1 of 65)

BGA solder failure rate

Electronics Forum | Thu Oct 28 13:36:14 EDT 1999 | Bart Smith

I am a design engineer and have a circuit board design with a 292 pin BGA on it. The board manufacturer is experiencing a failure rate of about 2.8% on the BGA device due to soldering problems. This is my first experience with BGA. How does the 2.

Re: BGA solder failure rate

Electronics Forum | Fri Oct 29 05:23:00 EDT 1999 | Wolfgang Busko

Hi Bart, that�s much to high. If that would happen to me my boss would tear my head off. For improving the yields you must find the cause for the soldering problems. What are the symptoms? What could be the cause for the symptoms? Could be design pr

solder joint failure analysis

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

Bga failure

Electronics Forum | Tue Sep 26 18:06:13 EDT 2006 | russ

could be black pad, or it is just bad reflow profile that did not get all balls soldered down. OR it could be a planarity issue between BGA and fab during assembly. Can we assume that this is proven design? Somewtimes in new design touching a BGA

MELF component/solder failure

Electronics Forum | Tue May 06 15:09:33 EDT 2003 | russ

Is that coating pliable? How is it cured? Russ

MELF component/solder failure

Electronics Forum | Thu May 01 20:40:15 EDT 2003 | davef

Are you talking to these guys? http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=24298

MELF component/solder failure

Electronics Forum | Tue May 06 15:53:52 EDT 2003 | bremerg

The coating is pliable and is air cured for 24 hours. The potting compound goes into the top assemnbly in 3 diferent stages. The circuit boards are coated using urethane type conformal coating. The unit is also placed into an ESS chamber -40� to +

MELF component/solder failure

Electronics Forum | Tue May 06 14:52:37 EDT 2003 | bremerg

Pictures are now located at http://www.stevezeva.homestead.com/ These components are 2W resistors that only see 1/2W at max. during normal use. I have contacted IRC still wqaiting for a response. The resistors were tested as good. But the circuit

MELF component/solder failure

Electronics Forum | Thu May 01 13:58:14 EDT 2003 | bremerg

Gentlemen, Does anyone have any failure information on IRC, CHP2-100-R500F (5 OHM, 2W, 1%) resistors. We have experienced two failures on the same circuit board where the metalization on the component separated from the component causing an open ci

MELF component/solder failure

Electronics Forum | Thu May 08 10:16:17 EDT 2003 | davef

Observations are: * Center most lead of the fuse on the top right of the assembly looks like it has excellent solder flow, but this is PTH. From the amount of solder, it must have been wave or hand soldered. * Center most lead of the fuse on the bot

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