sheldon

Vinay,
Can't replicate your results, my Bandgap shows the effect process variation and mismatch.
1) The choice of seed shouldn't matter. Since a pseudorandom sequence is used, the seed is used to make sure that you replicate your results. That is, same seed same results. Choosing different seeds will result in different sequences and slightly different results which is why confidence intervals are supported. They show the range of values for your results: yield, mean, std, based on the number of runs, ...
2) Not sure where the term, child analysis comes from. All the analysis defined are run a for each seed so the results are consistent.
3) Again all the analysis are run as a set. If the seeds are not same, then the results would be inconsistent rendering them useless.
4) This requirement is well understood and the simulation environment can even manage, reuse the same seed, when simulating with trimming/calibration.
5) BTW, the recommended sampling method is LDS.
Sheldon
