|
Artwork Design
Rules |
|
Design
External
Layers
(1/2
oz. copper clad, .062 finished thickness) |
Minimum
Feature
Size |
Preferred
Feature
Size |
| Trace
Width |
.004 |
.005 |
| Trace
to Trace Spacing |
.004 |
.005 |
| Trace
to Pad Spacing |
.004 |
.005 |
| Trace
to Plane Spacing |
.005 |
.008 |
| Trace
to Unplated Hole |
.012 |
.014 |
| Trace
to NC Routed Edge |
.016 |
.020 |
| Trace
to Punched Edge |
.062 |
.062 |
| Trace
to Scored Edge |
.016 |
.020 |
| Trace
to Misc Metal Features (Logo, UL Marking, etc.) |
.004 |
.020 |
|
|
|
| Pad
to Pad Spacing |
.003 |
.005 |
| Pad
Size = FHS + (x.xxx) |
.010 |
.015 |
|
|
|
| Via
Pad Size = FHS +(x.xxx) |
.010 |
.015 |
| Via
Pad to Via Pad Spacing. Tented |
.003 |
.005 |
| Via
Pad to Via Pad Spacing. No tent with S/M lay down. |
.010 |
.012 |
|
|
|
| Pad
to Plane Spacing |
.005 |
.008 |
| Pad
to NC Routed Edge |
.016 |
.020 |
| Pad
to Punched Edge |
.062 |
.062 |
| Pad
to Scored Edge |
.016 |
.020 |
|
|
|
| Unplated
Hole Edge to Board Edge |
.020 |
.050 |
| Unplated
Hole Edge to Unplated Hole Edge. </= .070 FHS |
.010 |
.016 |
| Unplated
Hole Edge to Unplated Hole Edge. >/= .070 FHS |
.010 |
.016 |
|
Internal
Layers (Signals)
(1
oz. copper clad, .062 finished thickness) |
|
|
| Trace
Width |
.003 |
.005 |
| Trace
to Trace Spacing |
.003 |
.005 |
| Trace
to Pad Spacing |
.003 |
.005 |
| Trace
to Plane Spacing |
.005 |
.006 |
| Trace
to Unplated Hole |
.010 |
.012 |
| Trace
to Routed Edge |
.020 |
.024 |
| Trace
to Punched Edge |
.062 |
.062 |
| Trace
to Scored Edge |
.020 |
.024 |
| Trace
to Misc Metal Features (Scales, Fiducials, etc.) |
.004 |
.020 |
|
|
|
| Pad
to Pad Spacing |
.004 |
.006 |
| Pad
Size = FHS + (x.xxx) |
.010 |
.015 |
|
|
|
| Via
Pad Size = FHS +(x.xxx) |
.010 |
.015 |
| Via
Pad to Via Pad Spacing |
.003 |
.005 |
|
|
|
| Pad
to Plane Spacing |
.005 |
.008 |
| Pad
to Routed Edge |
.020 |
.024 |
| Pad
to Punched Edge |
.062 |
.062 |
| Pad
to Scored Edge |
.020 |
.024 |
|
Internal
Layers (Planes)
(1
oz. copper clad, .062 finished thickness) |
|
|
| Plane
Clearance = FHS + (x.xxx) |
.020 |
.025 |
| Pad
Size = FHS + (x.xxx) |
.010 |
.015 |
| Plane
to NC Routed Board Edge |
.020 |
.030 |
| Plane
to Scored Edge |
.020 |
.030 |
| Connection
Annular Ring = Drill + (x.xxx) |
.005 |
.006 |
|
Solder
Mask Clearance |
|
|
| Liquid
Photo Imagable |
|
|
| Pad
Size = External Pad + (x.xxx) |
.003 |
.005 |
| Pad
Size = Unplated Hole + (x.xxx) |
.005 |
.020 |
| Min.
Width (Webbing) |
.003 |
.005 |
| Positional
Tolerance |
no
s/m on pad |
</=
20% on pad |
|
Legend |
|
|
| Minimum
Height |
.040 |
.060 |
| Minimum
Stroke Width |
.005 |
.006 |
| Legend
to Solder Mask Clearance Edge |
.005 |
.010 |
| Legend
to Board Edge |
.010 |
.020 |
|
Preferred
Practices |
|
|
| Hole
per Square Inch |
100
Maximum |
|
| Number
of Drill Size |
none |
none |
| Via
Pad Tear Dropping on all Signal Connections |
no |
via
pads |
| Breakaway
Slot Width |
.031 |
.062 |
| Breakaway
Slot Web Width |
.020 |
.040 |
| Smallest
Internal Radius |
.016 |
.031 |
|
|
|
| Etched
SMT Pad Tolerance |
+/-
.0010 |
+/-
.0020 |
| Nonfunctional
pads on Internal Signals |
remove |
remove |