Layer Type

Select the type of layer you wish to use in Sonnet for the corresponding Stackup level. You should select either Metal or Dielectric. Objects in a file entered on a Stackup layer defined as "Metal" are translated into metal polygons on a Sonnet metal level. Stackup layers defined as "Dielectric" are translated to a dielectric layer in Sonnet. Note that if Stackup Layer 1 is defined as a metal layer, a dielectric layer of air is added above that metal level during translation as Sonnet requires a dielectric layer between the top metal level and the box top. There is one exception to this rule. By using the special layer name SONNET_TOP, you may define a metal layer as the box top in Sonnet. Please see Layer Name for more details.