Multilayer PCB is the printed circuit board with more than two layers, such as 4 layers, 6 layers, 8 layers, 10 layers, etc. It is double-sided multiple. And with common features as more than two layers conductive traces, separated by insulating material between the layers, and the layer between the conductive traces must be connected through drilling, lamination as required. Multilayer PCB board is with multi-layer conductive wire, high-density drilling. It is widely used in electronic equipment.

Multi-layer PCB board and Double Sided PCB board are the main circuits KingSong PCB Manufacturer provides. Kingston could support customer multilayer PCB production up to 38 layers by prototype and middle run. Multilayer printed circuit board is more and more used by different PCB designers due to the multi-layer PCB board could meet the requirement of overload of weight and volume.

Item	Mass Production	Prototype
Layers	1-8 Layers	1-36 Layers
Max. Panel Size	600*770mm (23.62″*30.31″)	600*770mm (23.62″*30.31″) 500*1200mm (19.69″*47.24″)
Max.Board Thickness	8.5mm	8.5mm
Min. Board Thickness	2L:0.3mm, 4L:0.4mm, 6L:0.8mm	2L:0.2mm, 4L:0.4mm. 6L:0.6mm
Min Inner Layer Clearance	0.1mm(4mil)	0.1mm(4mil)
Min Line width	0.075mm(3/3 mil)	0.075mm(3/3 mil)
Min Line space	0.075mm(3/3 mil)	0.075mm(3/3 mil)
Min.Hole Size	0.15mm(6mil)	0.15mm(6mil)
Min plated hole thickness	20um(0.8mil)	20um(0.8mil)
Min Blind/Buried hole size	0.1mm(4mil)	0.1mm(1-8layers)(4mil)
PTH Dia. Tolerance	±0.076mm(±3mil)	±0.076mm(±3mil)
Non PTH Dia. Tolerance	±0.05mm(±2mil)	±0.05mm(±2mil)
Hole Position Deviation	±0.05mm(±2mil)	±0.05mm(±2mil)
Heavy Coppe	4oz/140μm	6oz/175μm
Min S/M Pitch	0.1mm (4mil)	0.1mm (4mil)
Soldermask colour	Green, black, Blue, White, Yellow, Red	Green, black, Blue, White, Yellow, Red
Silkscreen colour	White, Yellow, Red, Black	White, Yellow, Red, Black
Outline	Routing, V-Groove, Beveling punch	Routing, V-Groove, Beveling punch
Outline Tolerance	±0.15mm ±6mil	±0.15mm (±6mil)
Peelable mask	Top, bottom, double sided	Top, bottom, double sided
Controlled Impedance	+/- 10%	+/- 7%
Insulation Resistance	1×1012Ω(Normal)	1×1012Ω(Normal)
Through Hole Resistance	<300Ω(Normal)	<300Ω(Normal)
Thermal Shock	3×10sec@288℃	3×10sec@288℃
Warp and Twist	≤0.7%	≤0.7%
Electric Strength	>1.3KV/mm	>1.4KV/mm
Peel Strength	1.4N/mm	1.4N/mm
Solder Mask Abrasion	>6H	>6H
Flammability	94V-0	94V-0
Test Voltage	50-330V	50-330V

PCB lead time: (if you need urgent service,we also can meet)

Description	Double Layer	4 Layer	6 Layer	8 Layer	10 Layer or above
Sample(WD)	3-5	7	8	10	12
Mass production(WD)	7-9	10-12	13-15	16	20

Package:

The inner vacuum packing, Outer standard carton box packing.

Shipping:

1. By DHL,UPS,FedEx,TNT etc.
2. By sea for mass quantity according to the customer’s requirement.

If  you need a quotation for your PCB projects, please provide the following info:

1. Quote, quantity.
2. Gerber file in a 274-x format.
3. Technical requirement or parameters (material, layer, copper thickness, board thickness, surface finishing, solder mask/silkscreen color…).