Prevent the surface solder paste from flowing into the hole to cause virtual welding, affecting the mounting. 5. Prevent the tin bead from popping out during over-wave soldering, resulting in short circuit. The realization of the plugging technology of co
Thermal expansibility. The aluminum substrate can improve the heat dissipation function of the product, thus easing the thermal expansion and contraction of the components on the printed board, while improving the reliability of the product and making the
The design process begins with circuit design. The first thing you need to do is take out a document called a schematic. You can think of it as a blueprint that shows all the components and how they communicate in detail.You can design circuits on a PC us
Welding distanceThe gas generated during welding will cause harm to the human body, so when using a soldering iron, the distance between the nose and the soldering iron should be more than 30cm, and 40cm is a more appropriate distance.
High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. ▪ Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee.
It has been measured that a pass hole can bring about 0.5pf of distributed capacitance, resulting in a significant increase in the delay of the circuit, and reducing the number of pass holes can significantly improve the speed
Cross-segmentation may not be relevant for low-speed signals, but in high-speed digital signal systems, high-speed signals take the reference plane as the return path, that is, the return path. When the reference plane is incomplete, he following adverse
Control welding temperature and time: In the welding process of the PCB board, the welding temperature and time should be controlled to avoid excessive heating or heating time is too long, resulting in bending or warping of the plate
Secondly, excellent PCBA manufacturers need to have a complete quality management system to ensure product reliability and consistency. The best way to do this is to ask the PCBA manufacturer if they have ISO 9001 quality management system certification o
In the whole PCBA proofing process, the whole process management is very important, and it is usually responsible for the engineer in charge of management. In the process of implementation, managers should develop and implement the whole process managemen
The operating steps of PCBA and components are reduced to a minimum to prevent dangers. In assembly areas where gloves must be used, soiled gloves can cause contamination, so replace them frequently if necessary
Long track and zigzag track will affect the signal quality, resulting in signal distortion and interference. In order to avoid this situation, it is necessary to avoid the occurrence of too long and too curved. For some lines that need to be bent, excessi
Telegram