Via enclosure rule check in a multi-wide object class design layout

摘要

In a multi-wide class design layout, design rule checks for enclosure of multi wide class objects prevent false errors or false passes by performing such checks against the non-virtual boundaries of a wide class object, and not against the virtual boundaries. An exemplary embodiment provides a method for identifying as a violation, for each wide class w_i object, any geometry on another layer which is located at least partially inside the w_i object and has any portion thereof located within a distance encl_i of any non-virtual boundary of the w_i object. The exemplary method is preferably performed using effective wide class objects.