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Import some particular shape in to Cadence layout L

engine2011

 Hi everyone,

 I want to use standard technology to fabricate a device which is basically a circle shape realized with the toppest level metal layer. Because the process resolution is 0.01um, the smooth brim of circle is not acceptable and will introduce some class a DRC errors. 

 Now I am making the brim of circle replaced by 90 degree polygon to solve these errors. The problem is, if I want to make it a good approximation to a circle, the polygon will be very complex. I can use Matlab to generate this shape without much effort, however, it will be very complex to draw it manually in Cadence. Does cadence have some function to import the shape data from Matlab?

 Thanks!

EF

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  • dmay

    Unfortunately, I don't completely understand what you are looking for. It sounds like you want to create polygons on different layers. Since I have no idea what your output looks like I don't know how to help.

    The dbCreatePolygon is very straightforward. It takes three arguments: cellView id, layer, list of points

    If you need to create polygons on various layers you'll need to call this command multiple times.

    Derek

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  • dmay

    Unfortunately, I don't completely understand what you are looking for. It sounds like you want to create polygons on different layers. Since I have no idea what your output looks like I don't know how to help.

    The dbCreatePolygon is very straightforward. It takes three arguments: cellView id, layer, list of points

    If you need to create polygons on various layers you'll need to call this command multiple times.

    Derek

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