|
PCB Train
|
Single &
Double sided PTH
|
4 & 6 Layers
|
|
Laminate thickness & type
|
1.6 mm FR4,
0.8 mm FR4
|
1.6 mm FR4
|
|
1 oz Cu weight, outers (start thickness before plating)
|
18 microns
|
18 microns
|
|
1 oz Cu weight, outers (finish thickness after plating)
|
35 microns
|
35 microns
|
|
2 oz Cu weight, outers (start thickness before plating)
|
70 microns
|
n/a
|
|
2 oz Cu weight, outers (finish thickness after plating)
|
87 microns
|
n/a
|
|
Copper weight (inner-cores)
|
-
|
35 microns
|
|
Solder resists (photo-image)
|
Green x 2
|
Green x 2
|
|
Legend
|
White x 2
|
White x 2
|
|
Nos. of holes
|
No limit
|
No limit
|
|
Min finished size of holes
|
0.20mm
|
0.20mm
|
|
Profile complexity
|
No limit
|
No limit
|
|
Surface Finish
|
Immersion Silver
|
Immersion Silver
|
|
Gold
|
None
|
None
|
|
Electrical test
|
Optional
|
Included
|
|
Min track & gap (35 micron / 1oz Cu thickness)
|
0.15mm
|
0.15mm
|
|
Min track & gap (70 micron / 2oz Cu thickness)
|
0.30mm
|
n/a
|
|
Solder resist to copper pad clearance
|
0.125mm
|
0.125mm
|
|
Copper pad to hole
|
0.125mm
|
0.125mm
|
|
Copper track to copper plane clearance within a ground plane
|
0.250mm
|
0.250mm
|
|
Minimum board size
|
10 mm x 10 mm
|
10 mm x 10 mm
|
|
Maximum board size
|
570 mm x 420 mm
|
560 mm x 405 mm
|
|
Mechanical
|
No scoring.
No chamfering.
No countersinking.
No rebating.
2.0mm standard router.
|
No scoring.
No chamfering.
No countersinking.
No rebating.
2.0mm standard router.
|
|
Legend line width
|
0.15 mm minimum
|
0.15 mm minimum
|
|
Drill hole to copper clearance (inner layer)
|
0.5 mm minimum
|
0.5 mm minimum
|
|
Mechanical edge to copper track clearance
|
0.25 mm minimum
|
0.25 mm minimum
|
Dielectric constant (Dk) of FR4 cores
Dielectric constant (Dk) of FR4 prepregs
|
4.55
4.2
|
4.55
4.2
|
|
4 Layer 0.8 mm overall thickness M/L construction "Z" axis spacing of copper layers (4 layers)
|
n/a
|
1-2 0.22 mm
2-3 0.20 mm
3-4 0.22 mm
|
|
4 Layer 1.6 mm overall thickness M/L construction "Z" axis spacing of copper layers (4 layers)
|
n/a
|
1-2 0.22 mm
2-3 0.99 mm
3-4 0.22 mm
|
|
6 Layer 1.6mm overall thickness M/L construction "Z" axis spacing of copper layers (6 layers)
|
n/a
|
1-2 0.22 mm
2-3 0.30 mm
3-4 0.22 mm
4-5 0.30 mm
5-6 0.22 mm
|
|
Overall thickness tolerance
|
+ / - 10 %
|
+ / - 10 %
|
|
A manufacturer's batch identification number of maximum dimensions 3mm x 3mm will be added to a copper layer
|
Mandatory
|
Mandatory
|
|
If your requirements exceed PCB Train specifications
|
Ask us to quote
|
Ask us to quote
|
