6 - Via Hole to
Anti-Pad
The minimum distance of the via padstack hole to
the outermost edge of the anti-pad geometry.
(DFF_AR_VIAHL_TO_ANTIPD)
Etch
7 - Via Missing
Mask
Yes - report missing mask definitions
No - do not report missing mask definitions. (DFF_
AR_VIAPD_MSNGMSK)
Non-etch
8 - Via Pad to
Mask
The minimum distance of the via pad edge to the
mask pad outer edge. Positive value is oversize,
negative value is undersize. (DFF_AR_VIAPD_
TO_MSK)
Non-etch
4. Core Copper Features DFF Constraint Set
Index Ref Rule Description Usage Image
1 - Minimum Line
Width
Minimum allowable line width. (DFF_CF_MIN_
LINE_WIDTH)
Etch
2 - Minimum Text
Line Width
Minimum allowable line width for text line
segments. (DFF_CF_TEXT_LINE_WIDTH)
Etch
3 - Minimum Shape
Width (Positive)
Minimum allowable width of a positive shape.
(DFF_CF_SHP_WIDTH)
Etch
4 - Minimum Shape
Width (Negative)
Minimum allowable width of a negative layer
shape. (DFF_CF_SHAPE_WIDTH_NEG)
Etch
5 - Min. Radius on all
Trace Corners
Checks the flex minimum radius on all trace
corners. (DFF_CF_MINRADIUSTRCCRNRS)
Etch
8 www.cadence.com
OrCAD X DesignTrue DFM Rules Guide
