Capability
Layer
1~16 layers
The number of layers refers to the number of electrical layers (copper layers) in the PCB.
Currently, Chitong focus on 1~16 layers PCB.
Materials of plate
FR-4/Aluminum
Materials of plate: cardboard, half glass fiber, full glass fiber (FR-4), aluminum substrate.
Chitong focus on FR-4 and aluminum substrate, others can be custom made if need.
Max size of plate
2000mm* 510mm
Max cutting size is 2000 x 510mm.
Max size 2000 x 380mm for Aluminum PCB.
Max size 1200 x 380mm for FR-4 PCB.
Overall dimension accuracy
±0.15mm
Tolerance ± 0.15mm
Tickness of plate
0.3-3.0mm
Option: 0.3/0.4/0.6/0.8/1.0/1.2/1.6/2.0/2.4/3.0mm
Thickness accuracy(T≥1.0mm)
±10%
Take an example for T=1.6mm, actual thickness ranges 1.44mm(T-1.6×10%)~1.76mm(T+1.6×10%)
Thickness accuracy
(T<1.0mm)
±0.1mm
Take an example for T=0.8mm, actual thickness ranges 0.7mm(T- 0.1)~0.9mm(T+0.1)
Min line width
≥4mil
The line width should be wider than 4mil as much as possible, and the minimum is 4mill.
Min clearance
≥4mil
The clearance should be wider than 4mil as much as possible, and the minimum is 4mill.
Thickness of tin spray
2-40um
2-40um(thinnest 0.4um for lead, thinnest 1.5um for lead free).
Thickness of OSP
0.2-0.4um
Film thickness: 0.2-0.4um.
Immersion gold
1-3uinch
Ni thickness: 3-5um; Gold thickness: 1-3uinch, need check when ≥ 3uinch.
Surface copper thickness of finished product
0.5Oz~6Oz
(25um~70um)
Usually 25um for Aluminum PCB, 35um for FR-4 PCB. Max can be 6OZ if need.
Inner copper thickness of finished product
0.5OZ(17um)
The thickness of the inner copper foil circuit of the circuit board is uniformly 0.5OZ.
Aperture(power drill)
0.25~6.3mm
Min 0.25mm，max 6.3mm, will need special procsee if > 6.3mm.
Size of mechanical bit is increasing at 0.05mm, for example 0.25mm, 0.3mm, 0.35mm ,0.4mm…
Aperture accuracy(power drill)
±0.08mm
Tolerance ± 0.08mm
Single side welding ring through hole
≥6mil
At least 6mil if intensive wiring and no enough space; otherwise no limit.
Type of solder mask
Photosensitive ink
Regular ink we use：green, white, blue, red, yellow, black.
Matt gree, matt black or special color is available to custom made.
Min letter width
≥6mil
At least 6mil to ensure the letter clear enough.
Min letter height
≥1mm
At least 1mm to ensure the letter clear enough.
Distance between line and brim
≥0.3mm
CNC engraving ≥ 0.3mm; V-cutting ≥ 0.4mm.
Jointed board with clearance
≥2mm clearance
Gap between the boards need to be at least 2mm for cutting.
Jointed board without clearance
0mm clearance
Gap between the boards is 0mm.
Min aperture for semi-porous
≥0.6mm
At least 0.6mm for this special process.
Price advantage
Excellent service with best price
Safe payment
TT/LC/Paypal/Westunion
Lead time guarranteed
Refund emergency fee if any delay
Quality guarranteed
Refund full funds if any defect
