If you wish to model a resin layer across  a whole structure adjacent to the signal traces – this new application note shows
  you which structure to use in the Si8000 and Si9000 field solvers:
 
  https://www.polarinstruments.com/support/cits/AP8518.html

  
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  if you prefer us to create video, written, or have equal preference for each format:
 
  Video content:
  https://www.polarinstruments.com/landing/video.html