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I've created some text using Etch in a inner layer, and I've a VIA with supressed pad (basically just a drill hole) through that inner layer. Somehow the drill hole is stacking the text and it doesn't give me DRC flag. Anything I can do to flag this kind of error? Constraint manager?
Make sure the Hole To DRC's are enabled (they are not by default because the pad would normally take precedence). Go to Setup - Constraints - Modes - Spacing. You will see that some have ticks and some have grey boxes (not all checked). Now put a tick in the Spacing DRC Modes twice, once to turn them all off and agian to turn ALL on.
You are normally warned to turn these on when you enable the unused pad suppression.
In reply to steve:
Gee, I always saw the warning but when I checked CM the values were there. I never figured that the constraint was actually disabled. I re-enabled it and the DRC's came up right after. Thanks!