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6 Layer PCB

Termék kategóriája 6 Layer PCB vagyunk szakosodott gyártók Kínából, Printed Circuit Boards, 6 Layer PCB beszállítók / gyári, nagykereskedelmi kiváló minőségű termékek 6 Layer PCB Price K + F és a gyártás, mi a tökéletes vevőszolgálat és műszaki támogatás. Várom az együttműködésedet!

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Kína 6 Layer PCB Szolgáltatók

6 Layer PCB - stackup & prototype & price & manufacturing


What is 6 layer PCB?


6 layer PCB board is, in general, a 4 layer PCB board with 2 extra signal layers added between the planes. The 6-layer PCB classic stackup includes 4 routing layers (2 outer layers + 2 internal layers) and 2 internal planes (one for ground and the other for power). This enhances the EMI dramatically by offering 2 buried layers for high-speed signals and 2 surface layers for routing low-speed signals. The signal layers should be closed to the adjacent planes.


6 Layer PCB Stackup and Design


What is PCB stack UP?

PCB Stack up refers to the arrangement of copper and insulation layers that make up PCB before the layout design of circuit board. Although stacking allows you to get more circuits on a single board through various PCB layers, the structure of PCB stacking design has many other advantages:

  • The PCB layer stack can help you minimize circuit noise and radiation and reduce impedance and crosstalk problems in high-speed PCB layouts.


  • A good stacked PCB stack can also help you balance the need for low-cost, efficient manufacturing methods and focus on signal integrity issues.


  • Proper PCB stacking can enhance the electromagnetic compatibility of your design.


  • For PCB-based applications, stacked PCB configurations are usually good for you.

Why do PCBs stack up?


The irreversible development of modern electronic products has increasingly pushed PCB towards such needs as miniaturization, light weight, high speed, better functionality and reliability, and longer life, which has led to the popularity of multi-layer PCB. Two or more single sided PCB and/or double sided PCB are stacked together by a combination of semi-solid adhesives called "prepregs" to form multilayer PCBs through reliable predefined interconnections between them. There are three or more conductive layers in a multilayer PCB, two of which are outside, and one is synthesized in an insulating board. With the increasing complexity and density of PCB, some problems may arise, such as noise.


One of the most important factors to determine the performance of product electromagnetic compatibility (EMC) is to plan the optimal multi-layer stack up. The carefully designed cascade can minimize radiation and prevent the circuit from being disturbed by external noise sources. Good stacked PCB substrates can also reduce signal crosstalk and impedance mismatch. However, poorer stacking may increase EMI radiation, because impedance mismatch will lead to reflection and ringing in the system, which will greatly reduce the performance and reliability of the product. Then, this article will focus on the layer stack definition, design rules and basic considerations.

Most six-layer PCB consist of four signal routing layers and two planes. From an EMC perspective, a 6-layer Printed circuit board is usually better than a 4 layer PCB board.

6 Layer PCB stackup


6 layer 1.6 MM standard stackup and thickness

6 layer 1.6 MM standard stackup and thickness

One stack-up NOT to use on a six-layer PCB board is the one shown in Figure 1.  The planes provide no shielding for the signal layers, and two of the signal layers (1 and 6) are not adjacent to a plane.  The only time this arrangement works even moderately well is if all the high frequency signals are routed on layers 2 and 5 and only very low frequency signals, or better yet no signals at all (just mounting pads), are routed on layers 1 and 6.  If used, any unused area on layers 1 and 6 should be provided with "ground fill" and tied into the primary ground plane, with vias, at as many locations as possible.

One of the stackup methods of 6-layer PCB

Fig. 1 One of the stackup methods of 6-layer PCB


This configuration satisfies only one of our original objectives. 

With six layers available the principle of providing two buried layers for high-speed signals is easily implemented as shown in Fig. 2.  This configuration also provides two surface layers for routing low speed signals.

 Less common 6 layer PCB stackup

Fig. 2  Less common 6 layer PCB stackup


This is a probably the most common 6 layer PCB stack-up and can be very effective in controlling emissions, if done correctly.  This configuration satisfies objectives 1, 2, & 4 but not objectives 3 & 5.  Its main drawback is the separation of the power and ground planes.  Due to this separation there is no significant interplane capacitance between power and ground  Therefore, the decoupling must be designed very carefully to account for this fact.

Not nearly as common, but a good performing stack-up for a six-layer PCB is shown in Fig. 2. 

Another performing six-layer PCB board stackup

Fig. 3 Another performing six-layer PCB board stackup


H1 indicates the horizontal routing layer for signal 1, and V1 indicates the vertical routing layer for signal 1.  H2 and V2 represent the same for signal 2.  This configuration has the advantage that orthogonal routed signals always reference the same plane. The disadvantage is that the signals on layer one and six are not shielded.  Therefore the signal layers should be placed very close to their adjacent planes, and the desired board thickness made up by the use of a thicker center core.  Typical spacing for a 0.060" thick board might be 0.005"/0.005"/0.040"/0.005"/0.005".  This configuration satisfies objectives 1 and 2, but not 3, 4, or 5. 

Another excellent performing six-layer PCB board stackup is shown in Fig. 4. It provides two buried signal layers and adjacent power and ground planes and satisfies all five objectives.  The big disadvantage, however, is that it only has two routing layers -- so it is not often used. 

Another excellent performing six-layer PCB board stackup

Fig. 4 Another excellent performing six-layer PCB board stackup


It is easier to achieve good EMC performance with a six-layer circuit board  than with a four-layer circuit board.  We also have the advantage of four signal routing layers instead of being limited to just two.  As was the case for 4 layer PCB boards, it is possible to satisfy four of our five objectives with a six-layer PCB.  All five objectives can be satisfied if we limit ourselves to only two signal routing layers.  The configurations of Figures 2, 3, and 4 all can all be made to perform very well from an EMC point of view. 

6 Layer PCB Stackup for EMI or EMC

6 Layer PCB Stackup for EMI/EMC

EMI or EMC Return Current 6 Layer PCB Issue

EMI/EMC Return Current 6 Layer PCB Issue

EMI or EMC Return Current 6 Layer PCB Solved

EMI/EMC Return Current 6 Layer PCB Solved

Types of 6 PCB stack up-how to choose?

Types of 6 PCB stack up-how to choose?



PCB materials and stackup thickness commonly used in multilayer circuit boards.


6 Layer Stackup - 0.8mm thickness
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
2116 prepreg 4.5 0.12mm
2 inner 1 copper plane 1 oz
core 4.6 0.2mm
3 inner 2 copper plane 1 oz
2116 prepreg 4.5 0.12mm
4 inner 3 copper plane 1 oz
core 4.6 0.2mm
5 inner 4 copper plane 1 oz
2116 prepreg 4.2 0.12mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 0.8mm±0.1mm

6 Layer Stackup - 1.0mm thickness
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
2116 prepreg 4.5 0.12mm
2 inner 1 copper plane 1 oz
core 4.6 0.3mm
3 inner 2 copper plane 1 oz
2116 prepreg 4.5 0.12mm
4 inner 3 copper plane 1 oz
core 4.6 0.3mm
5 inner 4 copper plane 1 oz
2116 prepreg 4.2 0.12mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 1.0mm±0.1mm

6 Layer Stackup - 1.6mm thickness (preferred materials)
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
2116 prepreg 4.5 0.12mm
2 inner 1 copper plane 1 oz
core 4.6 0.6mm
3 inner 2 copper plane 1 oz
2116 prepreg 4.5 0.12mm
4 inner 3 copper plane 1 oz
core 4.6 0.6mm
5 inner 4 copper plane 1 oz
2116 prepreg 4.2 0.12mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 1.6mm±0.1mm

6 Layer Stackup - 1.6mm thickness (non-preferred materials but possible)
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
2116 prepreg 4.7 0.2mm
2 inner 1 copper plane 1 oz
core 4.6 0.5mm
3 inner 2 copper plane 1 oz
2116 prepreg 4.5 0.12mm
4 inner 3 copper plane 1 oz
core 4.6 0.6mm
5 inner 4 copper plane 1 oz
2116 prepreg 4.7 0.2mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 1.6mm±0.1mm

6 Layer Stackup - 2.0mm thickness (preferred materials)
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
7630 prepreg 4.7 0.2mm
2 inner 1 copper plane 1 oz
core 4.6 0.6mm
3 inner 2 copper plane 1 oz
7630 prepreg 4.7 0.2mm
4 inner 3 copper plane 1 oz
core 4.6 0.6mm
5 inner 4 copper plane 1 oz
7630 prepreg 4.7 0.2mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 2.0mm±0.2mm


6 Layer Stackup - 2.0mm thickness (non-preferred materials but possible)
layer order layer name material type material description dielectric constant thickness copper weight
1 top copper signal 0.035mm 1 oz
2116+7628 prepreg 4.7+4.7 0.12mm+0.185mm
2 inner 1 copper plane 1 oz
core 4.6 0.6mm
3 inner 2 copper plane 1 oz
2116 prepreg 4.7 0.12mm
4 inner 3 copper plane 1 oz
core 4.6 0.6mm
5 inner 4 copper plane 1 oz
2116+7628 prepreg 4.7+4.7 0.12mm+0.185mm
6 bottom copper signal 0.035mm 1 oz
Final board thickness: 2.0mm±0.2mm



6 Layer PCB Quote and Price


We provide the lowest price and fast turnover of 6-layer PCB real-time quotation service. For on-demand pricing and ordering of your next printed circuit board project, please contact online customer support or send us your documents (GERBER, etc.)for quick quotation.


6  L ayer PCB  Prototype Price


We are a trustworthy and reputable PCB manufacturer in China. We have affordable prices on the 6-layer PCB prototype. We can provide customers with 6-layer PCB board in accordance with RoHS standard. With laminated material, it can match the high temperature in the assembly process.

Of course, at the same time, we also provide sample production services for other PCB products to verify your design as soon as possible.

With regard to delivery, we can provide 24-hour, 72-hour urgent service. No matter where you are in the world.

6 Layer PCB Manufacturing


  • Manufacturable PCB Layers

We have abundant experience in manufacturing multi-layer circuit boards, not only in the production process, but also have many years of professional PCB engineers.So if you have multilayer PCB to produce, no matter how many layers, just let us know.

  • What size of 6-layer circuit boards can you produce?

According to our PCB manufacturing capability, we have no size limitation.

  • PCB Laminate Types

We offer a variety of PCB laminates ranging from FR4 130Tg for lower heating temperatures up to FR4 180Tg for higher temperatures. Also offered are Polyimide, Taconic, Rogers and Nelco material types.

  • Manufacturable Thickness of 6-Layer Circuit Board

As with the number of PCB layers we can manufacture, we still have no restrictions on the thickness of the six-layer PCB and can manufacture it.

  • PCB Surface Finish Types

We offer various PCB finishes including HASL (Solder), ENIG, Immersion Silver, Immersion Tin, Hard Gold, Entek/OSP, Unclad, Pb Free HASL, Selective Gold and ENEPIG.

Why order 6 layer PCB from JHY PCB? 


You will get it after check below advantages.

1. Good quality and price: We are experienced in producing six layer PCB, cost and time can be controlled well. This can help our customer to order good boards in cost-effective price.

2. Short Turnaround Times:

3. No Minimum Quantity: 1 pcs of PCB can be offered.

4. More orders, more discount.

5. Custom PCB Sizes

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