5. Core Copper Spacing DFF Constraint Set
Index Ref Rule Description Usage Image
Trace to
1 - Trace to Trace Minimum space between the edges of two
traces. (DFF_CS_TRCTO_TRACE)
Etch
2 - Trace to Shape Minimum space between the edge of a trace
and the edge of a shape. (DFF_CS_TRCTO_
SHP)
Etch
3 - Trace to Plated
Mechanical Hole
Checks the spacing between copper trace and
plated mechanical hole. (DFF_CS_TRCTO_
PMECHHL)
Etch
4 - Trace to All Pin
Pads
Minimum space between the edge of a trace
and the edge of a pin pad. (DFF_CS_TRCTO_
PNPD)
Etch
5 - Trace to All Via
Pads
Minimum space between the edge of a trace
and the edge of a via pad. (DFF_CS_TRCTO_
VIAPDPRIM)
Etch
6 - Trace to All Non-
Plated Holes
Minimum space between the edge of a trace
and the edge of a non-plated hole. (DFF_CS_
TRCTO_NONPLHL)
Etch
7 - Trace to All Non-
Signal Geometry
Minimum space between the edges of a trace
and non-signal geometry (such as a corporate
logo added on an etch layer. (DFF_CS_TRCTO_
NSG)
Etch
Shape to
- 2 Shape to Trace See: Trace to Shape
8 - Shape to Shape Minimum space between the edge of two
different shapes, or between edges of the same
shape. (DFF_CS_SHP_TO_SHP)
Etch
9 - Shape to All Pin
Pads
Minimum space between the edge of a shape
and the edge of a pin pad. (DFF_CS_SHP_TO_
PNPD)
Etch
10 - Shape to Plated
Mechanical Hole
Checks the spacing between copper shape and
plated mechanical hole. (DFF_CS_SHP_TO_
PMECHHL)
Etch
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OrCAD X DesignTrue DFM Rules Guide
