How to draw circles in LayoutEditor

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Hands-on design training for MultiMEMS
D. Lapadatu and P. Ohlckers

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| 8.2 How to draw circles in LayoutEditor

This section describes how to draw circles in LayoutEditor. The example given is done in a default setup for MultiMEMS.
Software version used for this example is 20090224

Select the appropriate layer in the layer selection box or via the menu 'Layer' |
Select the circle drawing tool on the menu. |
Position the mouse at about approximate the centre of where you would like the circle centre. Left click and drag the circle radius to about the right size. Dimensions can be seen in the bottom left corner of the application window. |

Edit the properties of the circle by right clicking on the circle and under the menu Draw, select Properties. Set the centre of the circle to the desired position. Here the centre of the circle is set to x,y=(0,0) and the radius to 800 micron.
The number of points gives the level of approximation is used when the circle is saved in a GDS file. The higher the more accurate, but depending on the radius of your circle and the fabrication grid used when producing the mask, there is no need to exaggerate 72 is more than sufficient for this example.

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STIMESI training on MULTIMEMS |
Last updated: June. 2009 24.06.2009