How Much Do You Know About Circuit Boards?

What are the advantages of circuit boards?

After electronic equipment adopts printed boards, due to the consistency of similar printed boards, manual wiring errors are avoided, and electronic components can be automatically inserted or mounted, automatic soldering, and automatic detection, ensuring the quality of electronic equipment , Improve labor productivity, reduce costs, and facilitate maintenance.

How are circuit boards classified?

Classification according to the number of circuit layers: divided into single-sided boards, double-sided boards and multi-layer boards. Common multi-layer boards are generally 4-layer boards or 6-layer boards, and complex multi-layer boards can reach dozens of layers.

What is the advantage of the circuit?

The reason why circuits can be used more and more widely is because it has many unique advantages, which can be summarized as: high density, high reliability, designability, producibility, testability, assembleability, maintainability sex etc.

What is the circuit production process?

Cutting, inner layer, lamination, drilling, immersion copper, wiring, diagram, etching, solder mask, characters, HASL (or immersion gold), gong edge, v-cutting (not required for some PCBs), flying test , vacuum packaging, etc.

What are the welding process standards?

Electrostatic protection methods during circuit board soldering: leakage and grounding.

Soldering process: clean the components to be removed, heat the solder pins with an electric soldering iron, clean the solder pins with a tin suction device, remove the old components, put in new components correctly, heat the solder pins, move in the solder wire, remove Remove the solder wire and remove the soldering iron.

Check the solder joints: whether the solder joints are round, bright and firm, and whether they are connected to the surrounding components.