So, you need to know how these reductions in solder volume will perform in real life.
In-use of the product in the life environment is the surest test. Many companies can�t wait / don�t want to pay for that information. * Some use accelerated life testing. Before you start accelerated tests, recognize that the failures shown in such tests have nothing to do with real life use. These tests are effective in showing the weakest element during the test. But if you do two tests [one with your standard amount of solder, one with your reduced amount] and the failure is the same in both tests, then the reduced amount of solder is probably comparable. * Some use finite element modeling to compare solder volumes.
reply »