Generating vias of the overlap metals of the same net

Do you have access to Virtuoso Studio 23.1? The new Via Assistant offers great new functionality to find and add missing vias on overlap.

Alternatively; 'Auto' on the 'Create -> Via' options is also an option.

Hi Teja,

To enrich RobMan's answer,

You can use the 'Auto' feature from the native 'Create Via' form.

This works well with the 'Drag to Define Area' option using your mouse middle-click.

To create only the vias between connected shapes, you can toggle the 'Connect Shapes On The Same Net' button as shown in the screenshot below :

Alternatively, you can do it in SKILL, here is a code snippet that should do the job

(inScheme
(let nil

  (defun get_default_shapes (cv)
    "Return selected shapes in CV or all CV shapes if no shape is selected"
    (or (setof obj (geGetSelectedSet) obj->isShape)
        cv->shapes
        ));or ;def

  (defglobalfun ab_place_vias_between_shapes ( @key (same_net    t                                                    )
                                                    (net_names   ""                                                   )
                                                    (min_cuts    2                                                    )
                                                    (orientation "vertical"                                           )
                                                    (cv          (geGetEditCellView)                                  )
                                                    (shapes      (get_default_shapes cv)                              )
                                                    (tf          (techGetTechFile cv)                                 )
                                                    (cst_grp     (cstFindConstraintGroupIn tf "virtuosoDefaultSetup") )
                                                    (via_opts    (viaGetViaOptions cst_grp)                           )
                                               @rest _args )
    "Place vias between SHAPES in CV.
If SAME_NET is non-nil, only place vias between shapes of the same net.
If NET_NAMES is a non-empty string, it should filter the specified net names."
    ;; Set automatic via options
    (foreach pair `((minNumCuts             ,min_cuts                )
                    (cutBBoxOrientation     ,(lowerCase orientation) )
                    (connectShapesOnSameNet ,same_net                )
                    (netNames               ,net_names               )
                    )
      (destructuringBind (var val) pair
        (setf (get (get via_opts 'automatic) var) val)
        ));destructuringBind ;foreach
    ;; Generate vias between shapes
    (viaGenerateViasFromShapes cv shapes via_opts)
    );def

  ));Scheme ;closure

Cheers

Aurélien