X-ray can effectively detect the defects of PCB board such as solder, adhesion and copper foil falling off. Nikon technology in response to the needs of the majority of customers launched a large capacity high resolution high magnification of the new X-ray detection system. The excellent detection effect is applicable to BGA, CSP, flip chip [...]
The sampling harness is divided into several stages 1) At the beginning of the battery module, the measuring point of the pole column was extended to the connector through the wire, and then the connector was connected with LECU. The sampling wire harness is long, the connection points are many, and the overcurrent fuse mechanism [...]
Almost every electronic device we use today uses PCBs; just like everything else, the problems with PCBs also exist. Even the best-made PCBs will fail, not to mention those made using cheap raw materials and amateur practices. However, even good quality PCBs may face problems, and these problems must be identified and corrected immediately to [...]
Spacing between patches The spacing between patch components is a problem that engineers must pay attention to during layout. If the spacing is too small, it is very difficult to print solder paste and avoid soldering. The recommended distances are as follows: The distance requirements between the devices: Same device: ≥0.3mm Different devices: ≥0.13*h+0.3mm (h [...]
1 Capacitor failure Failures caused by capacitor damage are the highest among electronic devices, and damage to electrolytic capacitors is the most common. Capacitor damage is manifested as: the capacity becomes smaller, the capacity is completely lost, the leakage, and the short circuit. Capacitors play different roles in circuits, and the faults caused by them [...]
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 [...]