Electronics Forum | Fri Aug 05 14:38:50 EDT 2011 | bandjwet
Does anyone know of a vendor able to perform ball shear testing services per JES stds? Thanks! BWET
Electronics Forum | Wed Jun 02 06:53:44 EDT 1999 | Earl Moon
| I need to perform shear tests on components that have been glued prior to wave soldering. Can any one recommend a shear tester and some standardized info on testing? We have had problems with poor glue bonds and would like to implement a test met
Electronics Forum | Wed Mar 02 05:01:41 EST 2005 | ABHI
Are your packages mounted on boar using sockets or BGA balls? LGA's are usually no issue and are simple compared to BGA. No issue on missing balls or ball drop issues. However, LGA's need quite a bit of mounting / holding pressures during test and mo
Electronics Forum | Fri Sep 03 06:53:38 EDT 2010 | arjan
Yes, we assembled a lot of QFN in the last years, but we don't have a X-ray machine by ourself, so we cant't inspect each device. This type LGA was designed on a prototyping board of our customer so we would validate our LGA reflow process and a rese
Electronics Forum | Mon Jun 07 11:21:38 EDT 1999 | Brian Wycoff
| | I need to perform shear tests on components that have been glued prior to wave soldering. Can any one recommend a shear tester and some standardized info on testing? We have had problems with poor glue bonds and would like to implement a test m
Electronics Forum | Mon Dec 17 08:41:45 EST 2001 | davef
Search the fine SMTnet Archives to develop background on this topic.
Electronics Forum | Mon Dec 04 03:40:43 EST 2000 | jmlasserre
Hello, When we discover the broken caps, there are missing and we can observe only either the 2 terminaisons or a small part of ceramic. The defect is due to a shock during the process but it's possible that the caps are fragilized during an operati
Electronics Forum | Tue Mar 22 07:39:05 EST 2005 | davef
There is no standard. This is a relative test. If you wish to do tests of this kind, we suggest to pay attention to the following points: * Shear strength of soft solder depends on the deformation speed applied. The faster the material is deformed t
Electronics Forum | Mon Aug 08 10:06:23 EDT 2011 | blnorman
I thought there was a link for test labs somewhere on the site, but didn't see it in a quick look. Here are some I know of that should be able to run the test: Trace labs ACI Technologies (American Competitive Institute) STI Electronics
Electronics Forum | Mon Jun 11 21:56:41 EDT 2001 | davef
Continuing, I�ve optioned about the uselessness of shear testing of solder connections on this forum previously. So, the points that you make about the elusiveness of developing a standard for measuring solder connection strength is well taken. I�l
