2021-09-26
SMT circuit board installation plan
The SMT circuit board installation scheme adopts the SMT installation method and process completely different from the installation method and process of through-hole plug-in components. At present, in the products applying SMT chip technology, some of them are circuits that all use SMT components, ...
2021-09-26
Cleaning mechanism of solder joints in SMT processing
In the process of SMT patch processing, because there are auxiliary agents such as flux, some pollutants or spots will be generated after oxidation or high temperature, so in the end, many pcbA need to be cleaned to be a perfect product. In terms of cleaning, whether solvent cleaning or water cleani...
2021-09-26
PCBA repair and rework process
Solder joint defects such as open circuit, bridge, false solder and poor wetting generated in reflow soldering and wave soldering process need to be repaired manually with the necessary tools (such as: BGA rework station, X-ray, high-power microscope) Remove various solder joint defects to obtain qu...
2021-09-26
What is HDI circuit board?
What is HDI (High Density Interconnect) PCB circuit board?
High-density interconnection (HDI) PCB is a (technology) for the production of printed circuit boards, a circuit board with a relatively high line distribution density that uses micro-blind via and buried via technology.
2021-09-26
Basic requirements for BGA pad design
1. The center of the pad of each solder ball on the PCB coincides with the center of the corresponding solder ball at the bottom of the BGA.
2. The PCB land pattern is a solid circle, and the via hole cannot be processed on the land.
3. After the via hole is electroplated, it must be blocked with ...
2021-09-26
Method for saving PCB manufacturing cost
PCBA production cost has always been a major link in the total cost of electronic equipment, because it is the core component of electronic equipment, and the cost is also very large in terms of program design and development cycle, so how to choose a method to save PCBA manufacturing and processing...
