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Stackup for 4, 6, 8,..., 18 layers Multi-layer laminated structure - Custom PCB Prototype the Easy Way - PCBWay
 

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Stackup for 4, 6, 8,..., 18 layers Multi-layer laminated structure

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4+6+4 HDI stackup Layer buildup/stackup reference

4+6+4 HDI PCB stackup

In the layer structure of a PCB board, there are several important concepts.
PP (Prepreg): Prepreg is a semi-cured sheet, also known as prepreg material, a thin sheet material that impregnated with resin and cured to an intermediate degree. It is mainly used as the bonding material and insulation material for inner conductive patterns of multilayer printed circuit boards. After being laminated with Prepreg, the semi-cured epoxy resin is squeezed out, begins to flow, and solidifies, bonding the multilayer circuit boards together and forming a reliable insulating layer. In the PCB industry, Prepreg can be likened to glue, used to bond several cores together using the lamination method to create multilayer boards.
PP Type:1080(3.1mil), 3313(4.2mil), 2116(5.4mil), 7628(7.7mil).

Core: Core is a rigid material with specific thickness and copper on both sides.
The pressing materials for multilayer boards mainly consist of Prepreg and Core.

The differences between the two are:
- Prepreg is a material used in PCBs, with a semi-solid texture similar to cardboard, while core is a rigid material similar to copper.
- Prepreg functions as both an adhesive and insulator, whereas core serves as the foundational material for PCBs, with entirely different functional roles.
- Prepreg can be flexible, while core cannot be bent.
- Prepreg is non-conductive, whereas core has copper layers on both sides, serving as the conductive medium for the printed circuit board.

In other special cases or Advanced PCBs (you need to choose "Customized Services and Advanced Options" and Custom stackup or Impedance control):
1. If you need custom stackup or control impedance, we will manufacture according to your requirement.
2. After place order,we will calculate whether it meets the requirements based on the stackup , material and impedance information.Also we will confirm with you.

For flexible PCB stackup, please check "Stack-up for FPC".

For rigid PCB, in response to customer demand, PCBWay has added a variety of laminate structures to our products (currently, we have added 298 and will continue to update them), which can greatly satisfy product structural design and impedance requirements.

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GaggiMate Controller

I ordered the PCB just last week, and it arrived in only six days—much faster than I expected. The production process was without any problems, and there were absolutely no issues during manufacturing or delivery. The quality of the board looks excellent, and it matches my design perfectly. This PCB will be invaluable for confirming all the details before committing to the full production run. I'm genuinely impressed with the speed and reliability of the service, and I’m excited to start working with it to validate my project. This quick turnaround has saved me a lot of time and effort in my development process.

Ullrich

Fragaria27 keyboard

Perfect work as always, thanks for bringing the project to life.

Gzowski

PCB standard stackup Total: 298
Layers
  • Please Select
  • 4 Layers
  • 6 Layers
  • 8 Layers
  • 10 Layers
  • 12 Layers
  • 14 Layers
  • 16 Layers
  • 18 Layers
Thickness (MM)
  • Please Select
  • 0.4MM
  • 0.6MM
  • 0.8MM
  • 1.0MM
  • 1.2MM
  • 1.6MM
  • 2.0MM
  • 2.4MM
Inner Copper (OZ)
  • Please Select
  • 0.5OZ
  • 1OZ
  • 1.5OZ
  • 2OZ
  • 3OZ
  • 4OZ
  • 5OZ
Outer Copper (OZ)
  • Please Select
  • 1OZ
  • 2OZ
  • 3OZ
  • 4OZ
  • 5OZ
Inner layer Residual copper ratio (%)
  • Please Select
  • 90%
  • 70%
  • 50%
  • 30%
Search
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Friendly Reminder: This is a through-hole board stack-up, not applicable for blind and buried vias. PCBWay supports customers to customize structures, and will continue to increase the structure diagrams.
4 Layers Total: 112
View all
1 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1855
L2-CU Inner Copper 1OZ 0.0350 1.1
(Core with Cu)
CORE Core
DK:4.6 		1.0300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1855
L4-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.51mm, tolerance: ±10%

Finished PCB Thickness: 1.61mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

2 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L2-CU Inner Copper 1OZ 0.0350 1.1
(Core with Cu)
CORE Core
DK:4.6 		1.0300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L4-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.49mm, tolerance: ±10%

Finished PCB Thickness: 1.59mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

3 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 30%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1715
L2-CU Inner Copper 1OZ 0.0350 1.1
(Core with Cu)
CORE Core
DK:4.6 		1.0300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1715
L4-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.48mm, tolerance: ±10%

Finished PCB Thickness: 1.58mm, tolerance: ±10%

Inner layer Residual copper ratio ≤ 40%, it is suitable to choose a lamination structure with 30% inner layer Residual copper ratio.

4 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1855
L2-CU Inner Copper 1OZ 0.0350 1.0
(Core with Cu)
CORE Core
DK:4.6 		0.9300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1855
L4-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.48mm, tolerance: ±10%

Finished PCB Thickness: 1.58mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

5 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L2-CU Inner Copper 1OZ 0.0350 1.0
(Core with Cu)
CORE Core
DK:4.6 		0.9300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L4-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.46mm, tolerance: ±10%

Finished PCB Thickness: 1.56mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

6 4-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 30%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1715
L2-CU Inner Copper 1OZ 0.0350 1.0
(Core with Cu)
CORE Core
DK:4.6 		0.9300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1715
L4-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.45mm, tolerance: ±10%

Finished PCB Thickness: 1.55mm, tolerance: ±10%

Inner layer Residual copper ratio ≤ 40%, it is suitable to choose a lamination structure with 30% inner layer Residual copper ratio.

SHOW MORE
6 Layers Total: 74
View all
1 6-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L2-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1750
L4-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L6-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.45mm, tolerance: ±10%

Finished PCB Thickness: 1.55mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

2 6-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L2-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L4-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L5-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L6-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.55mm, tolerance: ±10%

Finished PCB Thickness: 1.65mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

3 6-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L2-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L3-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1090
L4-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L6-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.45mm, tolerance: ±10%

Finished PCB Thickness: 1.55mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

4 6-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L2-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L3-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.2250
PP 2116 RC58%
DK:4.45 		0.1300
L4-CU Inner Copper 1OZ 0.0350 0.5
(Core with Cu)
CORE Core
DK:4.6 		0.4300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L6-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.56mm, tolerance: ±10%

Finished PCB Thickness: 1.66mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

5 6-layers PCB
Thickness: 2.4MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 3313 RC58%
DK:4.45 		0.1030 0.0925
L2-CU Inner Copper 1OZ 0.0350 1.0
(Core with Cu)
CORE Core
DK:4.6 		0.9300
L3-CU Inner Copper 1OZ 0.0350
PP 3313 RC58%
DK:4.45 		0.1030 0.0820
L4-CU Inner Copper 1OZ 0.0350 1.0
(Core with Cu)
CORE Core
DK:4.6 		0.9300
L5-CU Inner Copper 1OZ 0.0350
PP 3313 RC58%
DK:4.45 		0.1030 0.0925
L6-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 2.3mm, tolerance: ±10%

Finished PCB Thickness: 2.40mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

6 6-layers PCB
Thickness: 2.4MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L2-CU Inner Copper 1OZ 0.0350 0.9
(Core with Cu)
CORE Core
DK:4.6 		0.8300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L4-CU Inner Copper 1OZ 0.0350 0.9
(Core with Cu)
CORE Core
DK:4.6 		0.8300
L5-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1785
L6-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 2.35mm, tolerance: ±10%

Finished PCB Thickness: 2.45mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

SHOW MORE
8 Layers Total: 49
View all
1 8-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L2-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1750
L4-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L5-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1750
L6-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L8-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.52mm, tolerance: ±10%

Finished PCB Thickness: 1.62mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

2 8-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L2-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L4-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L5-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L6-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L8-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 1.48mm, tolerance: ±10%

Finished PCB Thickness: 1.58mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

3 8-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L2-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L3-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1090
L4-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1090
L6-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L8-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.46mm, tolerance: ±10%

Finished PCB Thickness: 1.56mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

4 8-layers PCB
Thickness: 1.6MM
Finished Outer Copper: 2OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L2-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L3-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L4-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L5-CU Inner Copper 1OZ 0.0350
PP 7628 RC46%
DK:4.74 		0.1960 0.1610
L6-CU Inner Copper 1OZ 0.0350 0.3
(Core with Cu)
CORE Core
DK:4.6 		0.2300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L8-CU Outer Base Copper 1.5OZ 0.0525 0.0525
(Plating to 2OZ)

Thickness after lamination: 1.55mm, tolerance: ±10%

Finished PCB Thickness: 1.65mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.

5 8-layers PCB
Thickness: 2.4MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 70%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L2-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L3-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1090
L4-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1090
L6-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1195
L8-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 2.29mm, tolerance: ±10%

Finished PCB Thickness: 2.39mm, tolerance: ±10%

Inner layer Residual copper ratio > 60%, it is suitable to choose a lamination structure with 70% inner layer Residual copper ratio.

6 8-layers PCB
Thickness: 2.4MM
Finished Outer Copper: 1OZ
Inner Copper: 1OZ
Inner layer Residual copper ratio: 50%
Layer Material Thickness
(mm) 		Thickness after lamination(mm)
L1-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L2-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L3-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.0950
L4-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L5-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.0950
L6-CU Inner Copper 1OZ 0.0350 0.6
(Core with Cu)
CORE Core
DK:4.6 		0.5300
L7-CU Inner Copper 1OZ 0.0350
PP 2116 RC58%
DK:4.45 		0.1300 0.1125
L8-CU Outer Base Copper 0.5OZ 0.0175 0.0175
(Plating to 1OZ)

Thickness after lamination: 2.25mm, tolerance: ±10%

Finished PCB Thickness: 2.35mm, tolerance: ±10%

40% < Inner layer Residual copper ratio ≤ 60%, it is suitable to choose a lamination structure with 50% inner layer Residual copper ratio.