BASE LAMINATES USED

BT* Epoxy	Woven glass fibre
FR4ML*	Woven glass fibre / Epoxy
FR4 Rigid*	Woven glass fibre / Epoxy
FR2*	Paper / phenolic
CEM3*	Composite / random glass fibre
CEM1*	Composite / epoxy paper
(*All laminates are available in a range of thickness and copper foil weights)

BOARD AND PANEL SIZES	Metric	Imperial
Maximum panel dimensions	610 x 355 mm.	24 x 14 in.
Minimum panel dimensions	150 x 150 mm.	6 x 6 in.
Maximum board dimensions	560 x 305 mm.	22 x 12 in.
Minimum board dimensions	13 x 6 mm.	0.5 x 0.25 in.

HOLE DIAMETERS TOLERANCE RANGE	Metric	Imperial
Drilled Only:
Up to 1 mm. (0.039 in.)	+/- 0.025 mm.	+/- 0.001 in.
1 mm. to 2mm. (0.039 in./0.078 in.)	+/- 0.038 mm.	+/- 0.0015 in.
Above 2 mm. (0.078 in.)	+/- 0.050 mm.	+/- 0.002 in.
Plated Holes:
Up to 1 mm. (0.039 in.)	+/- 0.050 mm.	+/- 0.002 in.
1 mm. to 2mm. (0.039 in./0.078 in.)	+/- 0.076 mm.	+/- 0.003 in.
Above 2 mm. (0.078 in.)	+/- 0.087 mm.	+/- 0.0035 in.

DRILLED HOLE POSITION TOLERANCE
Hole positions located from film	0.076 mm.	0.003 in.

MACHINE CUTTING TOLERANCE
NC Routing	+/- 0.1 mm.	+/-0.004 in.

REGISTRATION TOLERANCE (Pad/Hole Ratio)
Drill positional tolerance	+/- 0.076 mm.	+/- 0.003 in.
Pad positional tolerance (photo)	+/- 0.025 mm.	+/- 0.001 in.
Photo location tolerance	+/- 0.076 mm.	+/- 0.003 in.
Etch factor	0.0013 mm.	0.0005 in.
Minimum annular ring requirement	0.076 mm.	0.003 in.
TOTAL MANUFACTURE TOLERANCE	0.254 mm.	0.0105 in.
(This does not take into account mis-registration within artworks)