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Submission of GDSII for Critical Area Analysis

As a service to designers wishing to explore critical area analysis we have made a WWW interface to a simple peye-caa script. The peye-caa interface is here.

What the script does

This script will generate a critical area map for shorts of a single selectable GDSII layer. This will be returned as a pdf attachment to your email address. The script will also calculate the number of faults for the submitted cell and for an area of 1 cm^2 tiled by the cell. The yield, using the Poisson model, will also be calculated.

The defect density used to calculate these faults is 1 defect per cm^2, where the defect size is equal to or greater than the minimum feature size specified on the upload form and assuming a defect size distribution of 1/(defect size^3). This is a "standard" defect size distribution.

What you need to submit a design

  • You will need a small cell in GDSII format (actually CIF will work as well).
  • The layer map of the cell (at least for the measurement layer!).
  • The minimum feature size for the measurement layer.
  • And your email address to send the results to.

By default the script uses the bounding box of the cell (defined by the layers in the GDSII file) to define the measurement region. You can

  • optionally identify another GDSII layer number (not one already indicated in the table) that will used to define the measurement bounding box.

See an example script output.

The interface page is here.

Notes on use

  • We do not keep a copy of your GDSII or the resulting CA map.
  • The service is automated, so if your input is not "sensible" your result will be undefined.

Please do not abuse this service.




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