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1. What is copper coating? The so-called copper pouring is to use the idle space on the circuit board as the reference plane and then fill it with solid copper. These copper areas are also called copper filling. The significance of copper coating is to reduce the impedance of the ground wire and improve the […]
1. Silkscreen design requirements The ratio of character height to character width of silkscreen characters is generally required to be ≥6:1. There are three common font sizes: among them, when the board density is relatively high, 4/25mil characters (No. 1) are commonly used; when the density is normal, 5/ 30mil characters (No. 2); when the […]
There are many places where safety distances need to be considered in PCB design. Here, they are temporarily classified into two categories: one is electrical-related safety distances, and the other is non-electrical-related safety distances. 1. Electrical related safety distances 1. Spacing between wires As far as the processing capabilities of mainstream PCB manufacturers are concerned, […]
In recent years, with the rapid development of communication technology, the application of FPC PCB design in the communication field has attracted more and more attention. FPC PCB is a circuit board made of flexible substrate. It is thin, flexible and widely used in electronic products such as mobile phones, tablets and smart wearable devices. […]
PCB board impedance control technology is an important link in PCB production. Impedance-controlled PCB boards can ensure the quality of signal transmission, but the cost will be relatively high. Non-impedance boards are relatively cheap, but in high-speed signal transmission environments, the signal transmission quality may decrease. 1. Definition and principles of impedance PCB and non-impedance […]
High-frequency circuit boards have higher operating frequencies and lower signal distortion rates, but their manufacturing costs are higher and manufacturing is more difficult. Ordinary circuit boards are relatively low-cost and simple to manufacture, but they cannot meet the working requirements of high-frequency circuits. This article comprehensively explains the differences and characteristics of these two circuit […]
Impedance PCB control technology can effectively improve PCB signal transmission efficiency, reduce signal interference, and ensure the reliability of data transmission. 1. The concept and function of impedance PCB The impedance PCB refers to the geometric shape of the circuit board on the PCB, which is used to control the impedance matching of signals during […]
1. Concept and development history of automotive circuit boards Automotive circuit boards are an important part of automotive electronic components and are used to control and manage various electronic devices in vehicles. Automotive circuit boards were originally composed of some simple circuit boards that provided basic electronic control functions for the vehicle. With the continuous […]
Circuit design is a job that requires patience and care, as one error may affect the performance and reliability of the entire circuit. In circuit design, high-frequency and high-speed boards are a very important part because its characteristics will greatly affect the performance of the circuit. This article will elaborate on the characteristics of high-frequency […]
1、 Strengthening connections The connectivity between electronic components is the foundation of circuit boards. In traditional circuit board manufacturing, electronic components are usually soldered onto the surface of the circuit board, and the connection method is relatively simple, which is prone to poor connectivity or virtual soldering. The use of PCB half hole technology can […]
