Why is it necessary to design a stack-up for PCBs?

The stack-up design of a PCB (Printed Circuit Board) is the process of planning the arrangement of a substrate consisting of multiple layers. This design takes into account various factors such as electrical performance, signal integrity, EMI (electromagnetic interference), and thermal management. The main objective of stack-up design is to maximize the performance and reliability of the PCB.
Here are the main reasons why stack-up design is necessary:
- Electrical performance
- Signal integrity
- Suppression of EMI (electromagnetic interference)
- Thermal management
In summary, stack-up design is carried out to ensure high performance, reliability, and stability of the printed circuit board, meeting the specific requirements of various applications. Proper stack-up design can optimize the design and performance of the printed circuit board.

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