Cell Instance Finder Plug-in.

Cell Instance Finder Plug-in

updated February 8, 2018

A mask designer may need to find the insertion coordinates in a GDSII file of a specific cell or (or multiple cells) or find out how many times a specific cell is inserted in the GDSII file.

The Cell Instance Finder Plug-in allows the user to export a text file containing all the insertion coordinates of the specified cell.

The Cell Instance Finder Plug-in main menu.

Output is written as a text file and it includes information such as cell count, cell insertion point location, and cell name.

How it Works

Open a GDSII or OASIS layout and turn on the layer (or layers) of interest. Go to the Plugins pull down menu and select the Cell Instance Finder. The main dialog will come up and at this point you have several options in regards to the cell name.

  • You can click on the cells you are interested in - they are listed alphabetically.
  • You can click on the Select All option if you would like to get information on all cells.
  • You can use regular expressions to select all the cell names that match the expression.


Enter the regular expression ^PAD.*$ The output that will be produced from the test file looks like:

Xum          Yum          10 Symbols
  0.000000     0.000000   PAD4MILS
150.000000     0.000000   PAD4MILS
  0.000000   150.000000   PAD4MILS
150.000000   150.000000   PAD4MILS
115.500000    61.500000   PADCONT
148.500000    67.500000   PADCONT
 -1.500000    79.500000   PADCONT
196.500000   133.500000   PADCONT
 -1.500000   156.000000   PADCONT
115.500000   177.000000   PADCONT

Once you are done with the cell selection, hit the Apply button to create the text file. The Cell Instance Finder Plug-in will allow you to select the folder and the output file name.

This program is also available in command line mode. Please contact us if you are interested.

Questions or Problems?

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