6 - Max. Solid Fill on
Shapes
Checks flex maximum solid fill shapes. (DFF_
CF_MAXSOLIDFILLSHPS)
Etch
7 - Missing Trace
Tapers
Checks flex missing trace tapers. (DFF_CF_
ANTENNA_TRACES)
Etch
8 - Missing Pad
Fillets
Checks for missing fillets on connections at
pads. (DFF_CF_MISSNGPD_FILLETS)
Etch
9 - Missing "T" Fillets Checks for missing fillets on T junction
connections. (DFF_CF_MISSNGT_FILLETS)
Etch
10 - Antenna Traces Identify dangling traces that do not terminate on
another trace, shape, or pad. (DFF_CF_
ANTENNA_TRACES)
Etch
11 - Antenna Via Identify any via that contains only one
connection. (DFF_CF_ANTENNA_VIA)
Etch
12 - Acid Trap
Minimum Angle
Minimum Allowable angle of a trace into a
corner, shape, or pad resulting in an acute angle.
(DFF_CF_ACID_TRAP_ANGLE)
Etch
13 - Acid Trap
Minimum Area
Minimum allowable square area where traces,
shape, or pad intersections may cause an acid
trap. (DFF_CF_ACID_TRAP_AREA)
Etch
14 - Negative Plane
Islands Oversize
Identifies negative plane islands formed because
anti-pads or thermal reliefs are very close
together on a negative layer. (DFF_CF_
SHPILND_OVRSIZE_NEG)
Etch
9 www.cadence.com
OrCAD X DesignTrue DFM Rules Guide
