When PCBA virtual welding occurs, we can solve the PCBA virtual welding from the following points: 1) judging the general fault range according to the fault phenomenon, 2) observing the appearance, focusing on the large components and components with larg
How do we judge the quality of PCB board: 1. Distinguish the quality of PCB board by its appearance; 2. From the PCB board itself to judge its quality, 3. How to judge the SMT patch processing quality: 1. A complete, smooth, polished surface; 2. The appro
In the choice of PCBA patch processing manufacturers, electronics factories are very careful, so we should choose from the following points: first, customer experience, second, production qualifications, three, cost, four, service
There are six points to evaluate the manufacturability of PCB design:1. DFM review of light board2. Check the consistency between the actual components and the pad3. Generate 3D graphics: heat, whether it is conducive to SMT reflow welding heat absorption
Solder paste printing is very important to PCBA in PCBA processing, which directly determines the overall welding effect of PCBA. In the process of PCBA processing, the printing effect of solder paste includes steel mesh, solder paste, printing process, d
it is at least attached with a conductive graphic, and cloth holes (such as component holes, fastening holes, metallization holes, etc.), used to replace the chassis of the previous device electronic components, and realize the mutual connection between e
The processing of plug-in components generally adopts wave soldering. Because the wave soldering time is very short, if the jack is connected to more ground/electric layers, the tin penetration will be poor, resulting in poor welding.
When delivering the designed PCB file and BOM to the PCBA manufacturer, it needs to be analyzed from multiple perspectives to ensure that there is no delay in the project cycle to reduce the risk of product release.
This production line is equipped with solder paste printing machines imported from Sweden, wave soldering, X-RAY, and professional SMT processing technicians.
In the series of articles analyzing the reasons for welding quality in the process of patch processing, we have made a certain analysis of the reasons for the voids caused by pcb coating in the process of patch processing.
the purpose of miniaturization of components can be satisfied. The specific three anti paint is mainly used in where, hundreds of small make up to explain it in detail.
The best way to learn about actual system testing for Chinese students is to visit PCBA processing plants where companies develop products with similar lifestyles and inspect the entire production line, from the circuit board to the shop floor to product
Telegram