In PCB planning, there is actually a long process to go through before formal wiring, and the following is the primary process of PCB design:

1、 System standards

Firstly, plan out the various system standards for the electronic device. It includes system functions, cost limitations, size, operational scenarios, and more.

2、 Functional block

Next, it is necessary to create a functional block diagram of the system. The connections between blocks also need to be indicated. Cutting the system into several PCBs not only reduces the scale, but also gives the system the ability to advance and communicate parts. The system function block diagram provides us with the basis for cutting. A computer can be divided into a motherboard, display card, sound card, floppy drive, power supply, and so on.

Choosing the packaging method and the size of each PCB. Once the technology and number of circuits used for each PCB are determined, the next step is to determine the size of the board. If the PCB planning is too large, then the packaging technology needs to be modified or re cut. When selecting technology, it is also important to consider both the quality and speed of the circuit diagram.