question about min area drc check

qian_li

Hi

Now I am implementing some common DRC rules in python, such as width checking, spacing checking, area checking, etc., and encapsulating each rule into a python function. When implementing the width and spacing check, I called the width_check,space_check functions in the region class. What should I do if I want to implement the minimum area check？I don't see an area check function similar to the width check.

At the same time, I don't quite understand the specific meaning of this rule. Is the area of all shapes of M3 layer >=0.017? Then what should I understand except M2

Finally, I would like to ask if there is any documentation that explains each DRC in detail.

thank you

Matthias

There are two solutions:

1. with_area (https://www.klayout.de/doc-qt5/about/drc_ref_layer.html#h2-3756)

errors = layer.with_area(0 .. 0.017)

2. universal DRC:

errors = layer.drc(area < 0.017)

Matthias