Multi Layer PCB

We support multilayer printed circuit boards upto 12 layers including impedance control. Currently in-stock materials for stack-up planning -

1. 7628 and 2116 type prepreg, other prepreg type can be procured on request.

2. 0.36mm core material- NP-140 grade. We support other special core on request.

3. Outer layer copper finish can be 1oz or 2 oz.

Below are the standard stack-up details for 1.6mm thickness 4 and 6 layer boards-

4 Layer 1.6mm Thickness Stack-up

Layer	Material type	Thickness
Top Layer1	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Inner Layer2	Copper	0.035 mm	1.2 mm (with copper core)
Core	NP-140	1.165 mm
Inner Layer3	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Bottom Layer4	Copper	0.035 mm

6 Layer 1.6mm Thickness Stack-up

Layer	Material Type	Thickness
Top Layer1	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Inner Layer2	Copper	0.035 mm	0.4 mm (with copper core)
Core	NP-140	0.36 mm
Inner Layer3	Copper	0.035 mm
Prepreg	2116*4	0.48 mm
Inner Layer4	Copper	0.035 mm	0.4 mm (with copper core)
Core	NP-140	0.36 mm
Inner Layer5	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Bottom Layer6	Copper	0.035 mm

We do support other thickness stack-up as per your specification, using our in-stock materials listed above. Here is an example of 1mm thickness 4 layer custom stack-up-

4 Layer 1mm Thickness Stack-up

Layer	Material Type	Thickness
Top Layer1	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Inner Layer2	Copper	0.035 mm	0.75 mm (with copper core)
Core	NP-140	0.71 mm
Inner Layer3	Copper	0.035 mm
Prepreg	2116*1	0.12 mm
Bottom Layer4	Copper	0.035 mm