PCB-Assembly

  With improving technologies, the cost of every PCB assembly production is increasing. Profit margins are being raised. When you look for quality products for your application, the costs are likely to be even higher. But, you obviously want to reduce spending on your expenses, without compromising on the quality. Is that even possible? Electronics assembly manufacturing companies are always facing issues while attempting to cut down costs as the technology is constantly changing. Electronic devices are always  If you’re interested in PCB&PCBA products, pls kindly email to Sandy: sales9@hitechpcb.cominto more and more complex products, in order to meet consumer demands. This is why technology companies are evolving to find new processes for developing products that the end-users demand. In this blog, you’ll learn about the most common electronic product -the  PCB assembly  -which is seen as a vital component in almost all kinds of electronics. Even though such a ...

  Green   printed circuit board   (PCB) Printed circuit board (PCB) materials are formulated to withstand a certain amount of heat. What happens when the temperatures rise beyond certain limits? Performance takes a nose dive, especially at higher frequencies. This is why cost-effective heat management is perhaps an engineer’s number-one priority. Of course, heat-tolerant PCB materials and carefully designed circuits can tolerate a certain amount of heat. First, the circuit designer should understand the different parameters of the materials’ behavior when temperatures rise.   Heat comes from various sources Circuit boards  are assembled in increasing density to make smaller, lighter designs. A component mounted to the circuit board can produce heat – so can an external source, such as found in automotive electronic systems.   Heat causes most materials to expand Because of the smaller wavelengths at higher-frequencies, microwave and especially millimeter-wa...

  PCB board and electronic components need to be baked before PCBA processing, among which, the board baking temperature is relatively fixed, generally at 120 ° C ±5 ° C, and the baking time is determined according to the board or electronic components stored time, the longer the storage time of the board, the longer the baking time is required. So why bake the board before PCBA processing? The main purpose of pre-baking before PCBA processing is to remove the excess water in the PCB board, we all know that the PCB substrate is mainly based on glass fiber board, paper substrate and metal plate, and like glass fiber board and paper substrate board quality not only does not moisture-proof, but also absorbs moisture in the air if it is exposed to the air for a long time. If the PCB board is not pre-baked before processing, then the water vapor inside the PCB board will be quickly converted to water vapor at high temperature during processing, and the corresponding volume will also exp...

  What are the benefits of gold, silver and other precious metals used on PCB? The PCB surface needs to be welded, and a part of the copper layer is required to be exposed for welding. These exposed layers of copper are called pads, which are generally rectangular or circular and have a small area. We know that the copper used in the PCB is easily oxidized, so after brushing the solder resistance paint, the only thing exposed to the air is the copper on the pad. If the copper on the pad is oxidized, it is not only difficult to weld, but also the resistivity is greatly increased, which seriously affects the performance of the final product. So engineers have come up with a variety of ways to protect the pad. For example, an inert metal is plated with gold, or the surface is covered with a layer of silver through a chemical process, or the copper layer is covered with a special chemical film to prevent contact between the pad and the air. The exposed pad on the PCB, the copper layer ...