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Scenario: I want to wirebond my design with a Bondfinger to Bondfinger spacing of 25 microns. I open the design, go to: Route > Wirebond > Settings > View/Edit Constraints and set Finger to Finger at 25 microns and then disable all the rest of the selections (they are set to the default value of 75 microns) in both the Fingers and Wires tabs. Then when I wirebond my first row and check the finger to finger spacing, it is much more than the 25 microns set in the constraints. Why?Tech Tip: If you have different constraint values in this database for finger-wire and wire-wire, even though they are turned OFF, you either need to go into setup->user preferences->wirebond and turn on "wirebond_ignore_disabled_cns" or else change those other constraints values down to the point where they will not impact spacing.
By default, turning off a constraint just stops the DRC checks from running. The bonder still tries to use those values unless you tell it that it can ignore them.
Nice one - thanks!