Short Circuited Shunt Connected Stub
This is an example of a short circuited shunt connected stub. The stub wraps around and connects to an MIM capacitor, and then is connected to ground with a via. Notice the construction of the capacitor. The top plate is located on metalization level 0 and the bottom plate on level 1. The dielectric layer between the two plates is 0.20 µm thick and has a relative dielectric constant of 6.8. Notice that this dielectric layer covers the entire area of the box, not just the area between the capacitor plates. Because of this, there is a slight error in the fringing capacitance. Typically, this error is very small compared to the total capacitance, and thus, this is the preferred method for modeling parallel plate capacitors in Sonnet. If the fringing capacitance is important, an alternative method is to set relative epsilon for the dielectric layer equal to 1.0 and then insert a dielectric brick between the capacitor plates.
