Filtering (FILTER_RADIUS)

To avoid known problems of fluctuations in sensitivity values you should define a filter radius. 

OPT_PARAM
 ...
 FILTER_RADIUS = <filter_radius> , <unit_type>
END_

Default value is 4.0, REL. The first item is the filter radius. Second option is whether the radius is relative to the medium edge length of elements in the design area (REL). The radius might also be set to an absolute value (ABS), for example: 

FILTER_RADIUS = 5.0, ABS