[SI-LIST] does changing the edge of board profile help

HI all
  I am a student at the state university of new york doing my masters in 
electrical engineering. i had a course in signal transmission in electronics 
packaging. i found this mail group while trying to find some answers to 
signal integrity problems.
  one thing i found that due to the transmission of signals through vias, 
resonant waves are set up in the package which can interfere with other vias 
causing degenerate signals. one of the papers i read, written by virendra 
adsure suggested that applying an absorbing material to theedge of the board 
can bring doing the reflections.
  i ws wondering if there is another way around the problem. would changing 
the profile of the edge of the board help in a ny way. if we try and 
increase the resonance frequency beyond the range of considerations would it 
help?

any suggestion would be very helpful.
raseel




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