Electronics Forum | Wed Aug 14 18:17:32 EDT 2019 | slthomas
We are down to the last few unresolved PCBA test failures in a work order and scrambling to get them repaired and into a mechanical assembly. What we have found in quite a few of these cases are cracked 1206 MLCCs. The failed parts are all the same
Electronics Forum | Fri Jul 27 12:21:18 EDT 2012 | tpatrickwalsh
I am posting this here because I think it may have something to do with PCBA: I have a simple battery-powered consumer product (LED light) that we have been manufacturing for some time. All of a sudden in one batch, we have about a 4% rate of a sing
Electronics Forum | Wed Sep 22 22:13:51 EDT 1999 | Dave F
| Dear all, | | First, I'd like to thank every one of you who have been a great help for my last questions. | | Then, I have heard that in multilayer ceramic capacitors, each layer of ceramic was about 3 micrometers at least. When adding the layer
Electronics Forum | Thu Sep 09 04:51:19 EDT 2004 | Simon UK
65%), if one failed on the board i replaced all of them, and re-tested and thermally cycled them inline with our spec (-55/+80 Deg/C for 48hrs) this was a nightmare, especially when some cracks were not detected until several weeks later while flying
Electronics Forum | Thu Jun 24 22:22:06 EDT 1999 | Dave F
Problems with downloading papers from the library not withstanding, downloading other papers in the library is problematic, as follows: Understanding SP440 Heating & Vacuum Functions Credit/ Source: LEO HUERTA, TECHNICAL SERVICES ENGINEER Works fi
Electronics Forum | Thu Jun 17 11:18:03 EDT 1999 | Ian Clelland
| | | | | | Our company is experiencing cracked caps at our pick and place operations. The caps are being placed onto epoxy dots for subsequent wave solder operations. At present, be have set the pressure of the head at 2 in/lbs. This being down fr
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