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
The usual PCB design current does not exceed 10 A, even 5 A. Especially in household, consumer electronics, usually the continuous working current on the PCB will not exceed 2 A.
Before the design begins, it is necessary to think and determine the design strategy, so as to guide the selection of components, process selection and cost control of circuit board production.
Before the design begins, it is necessary to think and determine the design strategy, so as to guide the selection of components, process selection and cost control of circuit board production.
If the signal in the circuit can reach the receiver with the required time sequence, duration and voltage amplitude, the circuit has better signal integrity. Conversely, when the signal does not respond properly, there is a signal integrity problem.
in addition to the pcba proofing efficiency and technical experience and other factors, so as a processing enterprise should be improved in technology.
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