PCB Blogger-China PCB Factory,HOYOGO

If some components on the PCB are exposed to the air for a long time, they are easily oxidized and lose their luster, and they are corroded and lose solderability. Therefore, various technologies must be used to form protection. Among them, there are plating technologies, and the plating technology in PCB is divided into the following four methods: The first method: Finger-plated plating This plating method requires the plating of rare metals on the edge of the board, the protruding edge of the board or the gold finger, and can also be called the protruding part plating. In order to provide lower contact resistance and higher wear resistance, manual and automatic plating techniques are generally used. On the other hand, gold plating on contact plugs and gold fingers has now mostly been replaced by rhodium-plated, lead-plated, and plated buttons. The second method: Through hole plating There are a number of ways to create a layer of suitable plating on the drill hole walls

PCB not only is an important electronic component, but also a provider of circuit connections. In our daily life, computers, mobile phones, refrigerators and other products have used the PCB. I believe that everyone is not strange to PCBs, but how much do you know about the working principle of the PCB ? The PCB is mainly composed of pads, vias, mounting holes, wires, components, connectors, filling, electrical boundaries, and the like. Common PCB layer structures include single layer PCB, double layer PCB, and multi-layer PCB. The main functions of each component are as follows: Pad: It is a metal hole for soldering component pins. Via: There are metal vias and non-metal vias, and metal vias are used to connect the component pin between the layers. Mounting hole: It is used to fix the PCB. Wire: It is used to connect the electrical network copper film of the component pins. Connector: It is a component used for connection between PCBs. Filling: It is used for the c

For electronic equipment, a certain amount of heat is generated during operation, which causes the internal temperature of the equipment to rise rapidly. If the heat is not dissipated in time, the device will fail due to overheating and the performance of the electronic device will also decrease. Therefore, the heat dissipation of the PCB is very important. 1. Cooling through the PCB board itself Although widely used PCB boards have good electrical properties and processing properties, they have poor heat dissipation. As a heat dissipation path for a high-heat-generating component, it is hardly expected to conduct heat from the resin of the PCB itself, but to dissipate heat from the surface of the component to the surrounding air. However, as electronic products have entered the era of miniaturization of components, high-density mounting, and high-heating assembly, it is certainly not enough to dissipate heat only by components with a very small surface area. At the sa

As the name implies, a  ceramic  PCB  is a circuit board using ceramic as a substrate.  The performance of ceramics is better than that of ordinary substrates.  It is a circuit board prepared by using a thermally conductive ceramic powder and an organic binder at a temperature lower than 250 °C ,  and its thermal conductivity is 9-20 W / m.k.   Ceramic circuit boards are widely used in the manufacture of the electronics industry. Due to their advantages of good thermal conductivity, high voltage resistance, and stable chemical properties, ceramic circuit boards have become an important component in the manufacture and manufacture of electronic products. Thermal conductivity refers to the ability of a substrate to transfer heat energy.  The higher the conductivity, the better the thermal conductivity. So  heat energy can be effectively transferred to the heat dissipation system,  which reduces the temperature of the product and extends the life of the product. Since the main ma

As an important electronic connector and high-tech electronic synthesis product,  arbitrarily interconnected HDI can  be applied to almost all electronic products, especially in mobile phones or digital products, and it has stable performance, fast signal transmission and high performance. A rbitrarily interconnected HDI  plays a key role in these fields, so it is highly sought after by users in various fields in the market. Next, let's analyze its advantages. The advantages of arbitrarily interconnected HDI are mainly reflected in the following three aspects: 1. Signal Transmission Speed Arbitrarily interconnected HDI is a circuit component product that runs stably and has a fast signal transmission speed. Since the contact distance of the integrated circuit component is reduced, the speed of the entire signal transmission is higher. Moreover, the shortening of the length of the accessories between the points can also achieve the fast transmission of the sign