What is the significance of impedance to PCB circuit board, why is PCB circuit board impedance? This article first introduces what impedance and impedance types are, and then introduces why PCB circuit boards need impedance Finally, the meaning of impedance for PCB circuit boards is explained, and I will learn more about it with Xiaojie. [...]
The surface printed circuit board is a product developed mainly in the United States with the emergence of transistors in the early 1950s. At that time, the main production method was the direct etching method of copper foil. From 1953 to 1955, Japan used imported copper foil to make paper phenolic copper foil substrate for [...]
One of the reasons I like being a field application engineer for NCAB Group is to be able to interact with all kinds of customers. They have different ideas, but they all want to create cool products. I have noticed that customers have gradually realized that PCB is a key component of products, but they [...]
The circuit board factory can make employees more deeply understand the connotation of quality culture through the interaction between quality culture construction and management work. The quality culture construction work must be attended by all the members of the circuit board factory in order to be truly effective, and it must be persisted for a [...]
PCB wiring skills 1. The edges of the input end and the output end should be avoided adjacent and parallel to avoid reflection interference. If necessary, ground wire should be added for isolation. The wiring of two adjacent layers should be perpendicular to each other. Parasitic coupling can easily occur in parallel. 2. Add decoupling [...]
Questions about the color of PCB circuit boards Most of the circuit boards we use are green? Why is that? In fact, PCB circuit boards are not necessarily green. It depends on what color the designer wants to make it. Under normal circumstances, we choose green, because green is less irritating to the eyes, and [...]
Our company mainly produces and processes rigid PCB boards. The information needed to make circuit boards is as follows: 1.PCB board information (make the drawings of the circuit board) 2. Process: Surface production process: spray tin, gold plating, immersion gold, nickel plating, oxidation resistance. (Choose one) Solder mask color: dark green, light green, blue oil, [...]
FPC flexible circuit boards are widely used in smart phones due to their high wiring density, light weight, thin thickness, and good flexibility. The FPC flexible circuit boards in smart phones are mainly used for the connection of parts and the motherboard, like Display modules, fingerprint modules, camera modules, antennas, vibrators, etc., with the continuous [...]
With the miniaturization of various smart products, the density of components on circuit boards is increasing. In order to improve the quality of circuit boards, strict product tests and quality inspections must be passed before they leave the factory. X-ray inspection equipment is mainly used to detect process defects of circuit boards and find out [...]
For precision parts, processing is very strict. The processing program includes cutting in, cutting out, etc. There are specific requirements for size and accuracy, such as how many micrometers are floating up and down 1mm. If the size difference is too large, it will become waste at this time, which is equivalent to reprocessing. This [...]