Octagonal inductor with surround earth shield

questex07.in : Octagonal inductor with surround 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 other any layout editing tool that can read GDSII format. The process is a generic process using six metal levels and standard values for the 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 pattern is around 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 pattern around the inductor.

All the results will be placed in a directory structure under the name "questex07_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', 'questex05' and 'questex06' because this is the same inductor but in the other examples the inductor is alone or a plate or a grid are below the inductor.

For example in this case (inductor with surround shield), the Q factor is large but the resistance decreases with the frequency because the current return goes via the substrate (no plate or grid is below the inductor).