from qpdk import cells, PDK

PDK.activate()
c = cells.interdigital_capacitor(fingers=4, finger_length=20, finger_gap=2, thickness=5, layer_metal='M1_DRAW', etch_layer='M1_ETCH', etch_bbox_margin=2, cross_section='cpw', half=False).copy()
c.draw_ports()
c.plot()