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The design points of the hard-soft fusion board of pcb circuit board

1. For power circuits that must be repeatedly bent, it is best to choose a single-sided soft structure, and choose RA copper to improve fatigue life.  2. It is proposed to maintain the inner electrical layer wiring of the bonding wire to bend along the vertical direction. But sometimes it cannot ... Read More

Five requirements for pcb imposition

In order to facilitate the production and manufacture, PCBpcb circuit board jigsaw generally must design the Mark point, V-groove, and processing edge.  PCB appearance design 1. The frame (clamping edge) of the PCB splicing method should adopt a closed-loop control design scheme to ensure that th... Read More

Is circuit board PCBA cleaning really important?

“Cleaning” is often ignored in the PCBA manufacturing process of circuit boards, and it is considered that cleaning is not a critical step. However, with the long-term use of the product on the client side, the problems caused by the ineffective cleaning in the early stage cause many ... Read More

Common methods of circuit board repair

1. Visual inspection method By observing whether there is a burnt place on the circuit board, whether there is a broken place in the copper coating, whether there is a peculiar smell on the circuit board, whether there is a bad soldering place, whether the interface, gold finger is moldy and blac... Read More

Analysis of Wastewater Treatment Methods in Printed Circuit Board Industry

The circuit board can be called a printed circuit board or a printed circuit board, and the English name is PCB. The composition of PCB wastewater is complex and difficult to treat. How to effectively remove harmful substances and reduce environmental pollution is a major task facing my country&#... Read More

6 ways to check the quality of PCB design

Poorly designed printed circuit boards or PCBs will never meet the quality required for commercial production. The ability to judge the quality of PCB design is very important. Experience and knowledge of PCB design are required to conduct a complete design review. However, there are several ways... Read More

Planning PCB to reduce interference, just do these things

Anti-interference is a very important link in modern circuit design, which directly reflects the performance and reliability of the entire system. For PCB engineers, anti-interference design is the key and difficult point that everyone must master. The presence of interference in the PCB board In... Read More

How to understand the circuit board circuit diagram

How to understand the circuit board wiring diagram? First of all, let’s first understand the characteristics of the application circuit diagram: ① Most of the application circuits do not draw the internal circuit block diagram, which is not good for the recognition of the diagram, especiall... Read More

Why should PCB be immersed in gold?

1. What is Immersion Gold? To put it simply, immersion gold is the use of chemical deposition to produce a metal coating on the surface of the circuit board through a chemical oxidation-reduction reaction.   2. Why do we need to immersion gold? The copper on the circuit board is mainly red c... Read More

Common knowledge of flying probe test of circuit board

What is the flying probe test of the circuit board? What does it do? This article will give you a detailed description of the flying probe test of the circuit board, as well as the principle of the flying probe test and the factors that cause the hole to be blocked. Present. The principle of the ... Read More

Analysis of the basic steps of making led circuit boards

There are certain steps in the production of LED circuit boards. The basic steps in the production of LED circuit boards: welding-self-inspection-mutual inspection-cleaning-friction   1. LED circuit board welding ① Judgment of the direction of the lamp: the front is facing up, and the side w... Read More

Two methods to distinguish the quality of circuit boards

In recent years, almost one person has more than one electronic device, and the electronics industry has developed rapidly, which has also promoted the rapid rise of the PCB circuit board industry. In recent years, people have higher and higher performance requirements for electronic products, wh... Read More
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