In the past, the hot sales of Apple’s TWS wireless headphones led to the booming orders of rigid flexible PCB. However, under the interference of various negative factors, the demand for rigid flexible PCB dropped sharply, and the performance in 2020 declined by 26.2% compared with that in 2019. Various PCB factories have adjusted their…
According to the experience of PCB manufacturing, this paper summarizes the contents that need to be checked after the completion of PCB design: 1. Check the high-frequency, high-speed, clock and other fragile signal wires to see if the loop area is the smallest, if they are far away from the interference source, if there are…
What is three proofing paint? Three proofing paint is a kind of coating with special formula, which is used to protect circuit board and related equipment from environmental erosion. The three-proofing paint has good resistance to high and low temperature; after curing, it forms a transparent protective film, which has superior insulation, moisture-proof, anti-leakage, shockproof,…
With the improvement of the performance of electronic products, PCB is constantly updated and developed. The circuit is more and more dense, and more components need to be assembled. However, the size of PCB will not become larger, but smaller and smaller. At this time, it needs considerable technology to drill holes in PCB. There…
We usually need to quickly estimate the resistance value of a wire or a plane on the printed circuit board, rather than carry out tedious calculation. Although there are available PCB layout and signal integrity calculation programs, which can accurately calculate the resistance of the wiring, we sometimes want to take a quick and rough…
The application of printed circuit board is not unfamiliar to everyone. Almost all electronic products will see that the development of science and technology promotes the continuous growth of PCB industry. People have higher and higher requirements for the number of layers, precision and reliability of components. There are many kinds of PCB in the…
In the era of Internet of things driven by 5g, the market demand of HDI and R-F PCB is growing. However, with more and more manufacturers entering the field, the fierce competition leads to the rampant low-price strategy, and the profit space of the head manufacturers is constantly compressed, which leads to the decline of…
FPC began in the 1950s, and the representative technologies that have appeared so far are as follows. (1) In 1953, DuPont applied for a polyimide patent (patent number: us2710853a) to protect polyimide resin, its film and pipe (in 1960s, DuPont’s polyimide film (Kapton), Vespel and pyre ml) were commercialized one after another). (2) In 1960,…
Flexible printed circuit board (FPCB) is a popular type of PCB, which is designed to meet the needs of flexible electronic circuits. Flexible circuit boards are the fastest alternative to traditional wiring harness because they are easy to shape to suit a variety of complex circuit designs. In addition, these boards provide design freedom while…
Advantages of rigid flex PCB used in automobile. In order to successfully solve the problems mentioned in the first paragraph, flex rigid PCB has been used to reduce the number of connectors and solder joints for more than 15 years. Due to the application of flex rigid PCB in automobile system, the following advantages can be…
Our company completes Sch schematic design, PCB layout routing and layout design according to the customer’s requirements, BOM bill of materials generated according to the principle, PCB prototype manufacturing completed according to the designed PCB diagram, components purchased according to the generated BOM bill of materials, and circuit board welding and function prototype machine debugging…
PCB engineers refer to senior engineering and technical personnel engaged in research, teaching, product design, scientific and technological development, production and management of various electronic equipment and information systems. Generally divided into hardware engineers and software engineers. Hardware Engineer: mainly responsible for circuit analysis and design; and PCB layout design with computer software as a…
In PCB manufacturing all over the world, there are billions of printed circuit boards out of the factory. And in every day’s life, there are tens of millions of tons of waste PCB scrap accumulation. Once the circuit board is abandoned, it will do great harm to our ecological environment and human health. No matter…
Affected by the wrong deletion of schematic diagram, set the automatic backup function of PCB immediately. Different from schematic backup, the format of PCB backup file and source file is the same, but the name is different. This name is set by us. The steps are as follows: Click “setup” – > “user preferences” to…
Printed circuit board (PCB) is the blood of electronic products. It is the key component of supporting, loading and connecting electronic circuits. It is an important component of most electronic equipment and products that can not be ignored. PCB can be divided into rigid pcb, flexible PCB and rigid flexible PCB according to the degree…
The packaging of PCB board has a very small proportion in the manufacturing process of custom PCB manufacturing factory. The main reason is that it does not produce added value on the one hand, and on the other hand, the Chinese manufacturing industry does not pay much attention to the packaging of products. In this…
