PCB design is a very important part of electronic product design, and it is an important carrier of electronic products. A good PCB should not only look good, but also need to meet the requirements of high cost performance, good electrical performance, high stability and reliability, easy production and maintenance, and easy certification. Some technical leaders believe that as an excellent PCB engineer, you should have the following knowledge structure:

1. Familiar with at least one mainstream EDA tool in the industry

There are many PCB design software. Currently, the following four are mainly used in the market: Cadence Allegro, Mentor, EE, Mentor Pads, Altium Designer, Protel, etc. Among them, Cadence Allegro has the highest market share.

Allegro has many advantages, such as friendly software interface, fast response speed, high operation efficiency, rich secondary development functions, perfect rule manager functions, powerful high-speed design exclusive functions and so on. It supports large-scale projects well, and the response speed will not be greatly reduced due to the increase of the design scale. There is basically no pressure to use Allegro for design projects with tens of thousands of Pins. Therefore, for the communication industry, commercial servers, as well as industrial control, It is very suitable for the military field.

2. Familiar with devices, read circuit schematics, and recognize key signals

Common electronic components: resistors, capacitors, inductors, transformers, diodes, triodes, field effect transistors, optocouplers (OC), sensors, crystal oscillators, relays, buzzers, rectifier bridge stacks, filters, switches, fuses, etc. .

Key signals include: power supply, analog signal, high-speed signal, clock signal, differential signal, synchronization signal, etc.

3. Familiar with the process and technology of several common sheet and circuit board factories

Commonly used boards: cardboard, half glass fiber board, FR-4 glass fiber board, aluminum substrate, etc.