Atmospheric correction sentinel 1 in SNAP

Hi, i have processed some sentinel 1 images for calculating of displacement by DINSAR.
It has been added inospheric correction in SNAP version 9. can we use that for removing of atmospheric noise in interferograms??
How should we use??
I selected it and it wanted 3 products of me. when i interred 3 interfergrams in that , it showed that they donot have equal dimentions while 3 interferograms like eachother and belong to same place. what is that’s reason??