assume you are not going to send few million of satellite to the sky and also not send your worker to repair solder joints in the sky (skywalker? )... yes, it has been done before...visual, x-ray, burn- in, electrical testing prior and after, looking for drifting, leakage, differential, etc. etc. (He leak test or outgas test plus alpha particle, etc. etc.). the design is fully aware of the inspection req. sort of design for inspection as DFx... at least in the good old days. jk On Sep 19, 2016, at 5:52 PM, Joey Rios wrote: > Sections 7.5.14, 15 and 16 outlines inspection of hidden solder > joints, invoking the use of X-Ray in the Space Addendum. The > standard does not explicitly prescribe a sampling extent, so, if an > assembly has dozens of the same device, like 50-100 say of such > devices (such as a bottom termination component) on a single PWA, > is the expectation (J-STD intent) that each of the replicate > devices are inspected by X-Ray?? Is that what the industry > practices, or is sampling commonly invoked, since the processing of > the board is the same for the entire PWA??