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Good PCB Stack-Up For Multilayer PCB

Byron / 2018-01-09

1 What’s stack-up?


Stack-up refers to the arrangement of copper and insulating layers that make up a PCB prior to board layout design. For multilayer PCB, general layers include ground plane (GND plane), power plane (PWR plane), and inner signal layers,which describes the basic construction of a PCB. Specifically, the stack-up defines the total number of PCB layers and the type of each of these layers. 



2 Why stack-up is important?


A good stack-up can be very effective in reducing radiation from the loops on the PCB (differential-mode emission), as well as the cables attached to the board (common-mode emission).PCB stack-up is an important factor in determining the EMC performance of a product. A good stack-up can be very effective in reducing radiation from the loops on the PCB (differential-mode emission), as well as the cables attached to the board (common-mode emission). On the other hand, a poor stack-up can increase the radiation from both of these mechanisms considerably.


3 what consideration should be taken for stack-up?


1)Layers count 

2)The number and types of planes

3)The sequence of the layers

4)The spacing between the layers.


PCBAstore will help you to get proper stack-up to achieve your best PCB performance and lower your PCB cost. PCBASTORE will Provide you standard stack-up available for Multilayer PCB for your reference.


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