some people say that there are only two types of electronic engineers in the world:those who have experienced electromagnetic interference and those who have not .With the increase in the speed of pcb routing,electromagnetic compatibility design is an issue that the engineer have to consider .when facing a design, when conducting an EMC analysis of…
PCB board design is a compulsory course for electronic engineers, and it is not as easy as it seems to design a perfect PCB board. A perfect PCB board not only needs to have reasonable component selection and setting, but also needs to have good signal conduction performance. This article will introduce and share the…
Power bus Reasonably placing capacitors of appropriate capacity near the power pins of IC can make the jump of IC output voltage faster. However, the problem does not end there. Due to the limited frequency response characteristics of capacitors, capacitors cannot generate the harmonic power required to drive IC output cleanly over the full frequency…
The process of printed circuit board from light board to circuit pattern is a relatively complex physical and chemical reaction process. This article analyzes its last step – etching. At present, the typical process of printed circuit board (PCB) processing adopts “graphic electroplating method”. That is, first pre-plating a layer of lead-tin anti-corrosion layer on…
The last issue explained the common DRC and correction methods in PCB design. This issue introduces what aspects are included in the general Checklist inspection. 1 Netlist comparison Confirm the report output by the netlist comparison tool to ensure that the netlist is consistent with the PCB board.The final board imports the latest schematic to…
This article explores effective strategies for industrial control PCB assembly, covering best practices, techniques for optimization, and innovations that enhance reliability and efficiency in manufacturing processes.
The parallel signals and serial signals referred to in this article include the transmission (communication) method, the interface type, and the protocol characteristics of the data itself, signals, protocols, buses and interfaces. If you want to know the difference between signals, protocols, buses and interfaces, you can read the previous article: [size=1em] A brief history…
Discover effective techniques for PCBA rework and repair solutions. Learn the best practices for diagnosing issues, tools needed, and step-by-step methods to ensure quality results in electronics manufacturing.
Explore advanced PCB assembly solutions available in the US marketplace, focusing on efficiency, quality, and innovation. Discover how local services enhance production processes for various industries and meet evolving technology demands.
1.The FR-4 we often choose is not the name of a material The “FR-4” we often refer to is a code for a flame-resistant material grade. It means that the resin material must be able to extinguish itself after burning. It is not a material name, but a material grade. Therefore, there are many types…
Current circuit boards are mainly composed of the following: Features of integrated circuits” ]! q’ L$ O% h3 D d. q/ ? Integrated circuits have the advantages of small size, light weight, fewer lead wires and welding points, long life, high reliability, good performance, etc., and low cost, which is convenient for large-scale production. It…
1.How to choose PCB proofing material? The selection of PCB material must strike a balance between meeting design requirements and mass production and cost. Usually, when designing very high-speed PCB boards, the material problem is more important. For example, the dielectric loss of the commonly used FR-4 material at a frequency of several GHz will…
1.PCB surface treatment: Anti-oxidation, tin spraying, lead-free tin spraying, immersion gold, immersion tin, immersion silver, hard gold plating, full-board gold plating, gold finger, nickel-palladium gold OSP: low cost, good solderability, harsh storage conditions, short time, environmentally friendly process, good welding, flatness. Tin spraying: Tin spraying boards are generally multi-layer (4-46 layers) high-precision PCB samples, which…
This article explores innovative approaches to streamline prototype PCB assembly services, enhancing design efficiency. It covers best practices, tools, and techniques to optimize processes and deliver high-quality prototypes quickly and effectively.
There is a very common process in the surface treatment of circuit boards, called gold-immersion. The purpose of the gold-immersion process is to deposit a nickel-gold plating with stable color, good brightness, flat plating and good solderability on the surface of the printed circuits on the PCB. In simple terms, gold-immersion is a chemical deposition…
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