Octagonal inductor with un-patterned earth shield

questex05.in : Octagonal inductor with un-patterned earth shield

Requires: QUEST Minimum Versions: QUEST 2.0.2.R

This example is an octagonal inductor. To load and run this example, select the Load example button in DeckBuild. This will copy the input file, GDSII file and results to your current working directory. Select the run button to execute the example.

The GDSII file can be viewed in MaskViews, Expert or any other Layout editing tool that can read GDSII format. The process is a generic process using six metal levels and standard values for conductivity and permittivity.

Since the inductor in this example has a diameter of approximately 300um, the depth of the substrate in the simulation was chosen to be 400um. A plate is below the inductor.

A two port simulation is defined. The first port is between the electrodes "in" and "gnd1". The second port is between the electrodes "out" and "gnd2". The reference electrodes "gnd1" and "gnd2" are on the plate below the inductor.

All the results will be placed in a directory structure under the name "questex05_db" which was defined with SAVE command.

Three dimensional structure files can be viewed with TonyPlot3d. All other RLCG and Q versus frequency data can be viewed with TonyPlot.

This example can be compared with the examples 'questex04', 'questex06' and 'questex07' because this is the same inductori, but in the other examples the inductor is alone or a grid is below the inductor or a pattern is around the inductor.

For example in this case (inductor with a plate), the Q factor is very small because the inductance value is small and the resistance value is large due to the path of the current return by the plate. The capacitance is large because the ground plane is below all the surface of the inductor.