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Have you noticed that now more and more of our lighting is using led lighting.What is LED? Compared to the traditional light bulbs, LEDs have lower power consumption, longer lifetime and higher energy efficiency. In the PCB industry,when we say LED PCB, it refers to the pcb used for LED lighting, if you are looking for a suitable LED PCB for your lighting system, this article may bring you something. WHAT ARE LEDS COMPOSED OF?LED is an initial light-emitting diode that produces light when an electric current passes through. LEDs typically have negative and positive electrodes, which generate light in the visible light region.The LEDS are glued to the PCB by soldering process and have electrical connections for lighting.Since light-emitting diodes dissipate a lot of heat when they are in use, when you are designing LED, the metal core is usually the best choice for LED PCB, it is because that it dissipates heat more faster. Among them, the metal material aluminum is the most widely used
So, what are the components of FPC flexible circuit boards? In the structure of FPC flexible circuits, the materials composed of flexible copper clad laminate (FCCL), covering film, adhesive film, etc. Flexible Copper Clad Laminate (FCCL): The common film materials for flexible copper clad laminates include polyimide film (PI), polyester (PET), polyethylene naphthalate (PEN), liquid crystal display polymer (LCP), and other polymer plastic films. In FPC flexible circuit boards, copper clad boards mainly play three roles: conductivity, insulation layer, and support points. Covering film: It is composed of organic chemical plastic film and adhesive, and its function is to maintain a part of the flexible power circuit electrical conductor that has already been carried out. There are different types of adhesive films and adhesive types, as well as thickness specifications and models for adhesive films. Adhesive film: It is formed by pouring adhesive on two or one side of a substrate f
Regarding FPC soft boards, also known as flexible circuit boards, they are actually a type of printed circuit board, but there are significant differences from traditional printed circuit boards. Therefore, they are referred to as FPC soft boards, also known as flexible circuit boards. FPC generally uses PI as the substrate and is a flexible material that can be bent or flexed arbitrarily. FPC soft boards are usually used for links that require repeated bending and some small components, but now it's not just that. Currently, smartphones are considering bending prevention, which requires the use of FPC soft boards as a key technology. PCB is the so-called printed circuit board, usually referred to as PCB hard board, which is the support body in electronic components and is a very important electronic component. PCB hard boards usually use FR4 as the substrate, also known as FR4 circuit boards, and cannot be bent or bent. PCB hard boards are usually used in places that do not requi
The trend research on PCB sampling technology began to be implemented at the end of 2011, including English and Chinese versions. 41 PCB sample manufacturing companies participated in the survey, including dominant companies from Asia, Europe, and North America. They hold a 16.5% share of the global PCB market. The IPC research sample is representative of the global industry in terms of company size and product portfolio. Among the companies studying the trend of PCB sampling technology, the production of high-density interconnect (HDI) boards is expected to increase by 26% between 2011 and 2014. Stacking and interleaving micropores technology will also be widely used, thereby affecting the performance of any layer of micropores and any through-hole. With trends driven by miniaturization and high-speed technology, surveys have shown that the two most common factors limiting circuit scale miniaturization are solder mask pattern alignment and assembly. Most companies are evaluating
Printed circuit boards (PCBs), also known as circuit boards, are important electronic components and are known as the "mother of electronic components". 1. Traditional circuit boards are also known as printed circuit boards and printed circuit boards, as they are made by printing corrosion-resistant agents. At present, most circuit boards are coated with anti-corrosion agents (laminated or coated), and after exposure and development, the circuit board can be etched. 2. Circuit boards include single panel, double-sided board, and multi-layer board. In the most basic PCB, components on one side and wires on the other side are called single panels. The double-layer panel is covered with copper on both sides, and the lines between the two layers can be connected through through-holes to form the required network connection. Multilayer board refers to a printed board with three or more layers of conductive patterns, with insulating materials in the middle, and conductive patterns connec
The so-called PCB sampling actually refers to the trial production of printed circuit boards before mass production, which is the process of electronic engineers designing circuits and completing PCBs, and PCB manufacturers conducting small-scale trial production. After the sample testing is completed, mass production will be carried out. There are two methods for sampling, one is a legitimate PCB factory, and the other is a professional sampling company. PCB sampling generally includes two groups, one is the engineer group, and the other is the PCB sampling manufacturer. As a team of engineers, attention should be paid to the following aspects when making samples: 1. Only by carefully selecting the sample size can we effectively control costs. 2. Confirm the packaging of the equipment to avoid packaging errors that may lead to sample failure. 3. Conduct comprehensive electrical testing to improve the electrical performance of the PCB board. 4. Complete signal integrity layout, re
In recent years, Pcb liquid medicine has gradually shifted from being environmentally friendly to being environmentally friendly. The government has increased its punishment efforts, and the industry and PCB manufacturers or suppliers have begun to pay close attention to environmental issues. Environmentally friendly chemical solutions emit less exhaust gas, wastewater, and waste, making them easy to handle, creating a friendly working environment, and providing more protection for workers' physical health. For example, in the field of porous metals, in recent years, more and more PCB companies have chosen organic conductive film direct electroplating. This metallization process does not emit formaldehyde gas, which not only greatly improves the working environment, but also has no complex wastewater and simple treatment methods, greatly saving water and electricity, and reducing operating costs. Wise individuals in the PCB industry have begun to call for the innovation of PCB ma
What is the thermal design in PCB processing? What aspects do we need to understand this problem from? The use range of thermocouple temperature measurement is very wide, and the problems encountered are also diverse. Therefore, this chapter can only cover several important aspects of thermocouple temperature measurement. Thermocouples are still one of the main means of temperature measurement in many industries, especially in the steelmaking and petrochemical industries. However, with the advancement of electronics, the application of resistance thermometers in industry has become increasingly widespread, and thermocouples are no longer the only and most important industrial thermometers. The practical application of thermoelectric phenomena is, of course, the use of thermocouples to measure temperature. The complex relationship between electron energy and scattering results in different thermoelectric potentials of different metals. Since a thermocouple is such a device, the dif
1： The development of electronic components, the development of integrated circuits - IC, and the diverse use of semiconductor materials; 2： Electronic products pursue miniaturization, and the original perforated inserts cannot meet the requirements; 3： The revolution in electronic technology is indeed necessary to pursue international trends. 4： SMT processing has a more complete function in electronic products, and the integrated circuits currently used - ICs - no longer have perforated inserts, especially large-scale and highly integrated ICs that have to use surface mount technology; 5： PCB sampling, mass production, automation, and production enterprises strive to improve product quality and reduce production costs in order to improve their competitiveness and meet customer needs;
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