Electronics Forum: hairline solder short root causes (Page 1 of 3)

solder balls - Possible root causes

Electronics Forum | Fri Jul 06 03:23:01 EDT 2001 | kennyhktan

Hi there Steven ! Please allow me to share some of my problem we're facing here with you. Here are a few points that I suggest you should check on your current process:- (1)PCB - Component land partern design ? It is per IPC spec ? - Mask

Palladium finish and solder balls

Electronics Forum | Thu Jun 27 11:22:03 EDT 2002 | robbied

Hi there. We have had an out of control reflow oven that has allowed its temperature to fluctuate by up to +/- 20 deg C from set point in very short periods of time. We found the root cause of the problem and fixed it, but by then we had already run

Components Solder Short

Electronics Forum | Fri Jul 21 12:01:09 EDT 2006 | CKH

Hi Folk, what is the possible cause for the components (e.g ICs) to be Solder shorted? I know that one of the cause is the solder paste height is too thicked. Could anyone advise me on then possible root cause and solution(to minimize the rate of so

Component failure analysis

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

BGA Solder Short

Electronics Forum | Fri Sep 22 00:57:44 EDT 2023 | hazira1991

The actual root cause not yet define. But i do check all that you stated all good setting parameter. 1 week before run the problematic batch, i had run another batch which all the BGA were good no solder short. Just recently i run another batch 21 pc

Hair Line Solder Short at PTH Connector

Electronics Forum | Sat Apr 16 13:43:53 EDT 2005 | KEN

What about electo migration? I had (what apears to be) the exact same problem you describe. X-ray and ICT fails to detect micro shorts. However, in our test, the bench functional test would show a current overload. In some cases the electro migrti

Re: Contamination causing shorts.

Electronics Forum | Sat Sep 25 07:07:02 EDT 1999 | Brian

| I need a memory jog. What is the term for the growth of conductive contamination after a board is in storage or field? | There are several different mechanisms which can cause this. In reality, ionic contamination is the root cause for many of the

Re: BGA Shorting problem

Electronics Forum | Tue Sep 01 19:31:36 EDT 1998 | Kallol Chakraborty

| 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. The ce

BGA Solder Short

Electronics Forum | Mon Aug 07 04:05:43 EDT 2023 | suradi

May I share regarding this issue. Initially, please define the root cause clearly, is it from materials or process. Refer to the picture, if the short location is not randomly meaning there is the process issue. It could be stencil design or paste pr

Re: VOC Free No Clean Solder Balling

Electronics Forum | Fri Jun 23 14:10:01 EDT 2000 | Chrys Shea

Sounds like the mask to me. Had a similar situation a couple years ago. The mask wasn't fully cured, so it absorbed water that the preheaters couldn't dry out. When it outgassed at the wave, it caused a lot of micro turbulence that broke the surfa

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