pons

DFM CAA

Discussion created by pons on Mar 18, 2009
Latest reply on Mar 20, 2009 by simon_favre

Hello,

 

I am trying to use Calibre DFM commands to evaluate the amount of critical area in my layout designs for instance for shorts.

 

I have created a new layout rule for shorts and tried to see the results of the check.

 

However, I am only obtaining a single error result, that is the whole layout polygon. What I mean is that the error does not point the location of the critical areas, but the whole layout.

 

When I define a small radius for the defects, no result is shown, and when I reach a given threshold radius from which a critical area is detected, then the whole layout is highlighted.

 

And the whole layout area is not critical... I promess! XD

 

My objective is to calculate the amount of critical area in my layout, for instance 1 square um, and if possible to highliht it in the layout.

 

Is this possible? Can someone give me some advice?

 

Thank you,

 

Marc

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