Circuit is easy to be damaged in overvoltage, overcurrent, surge, etc. With the development of technology, PCB products are increasingly diversified and complicated, and circuit protection becomes particularly important.
Circuit boards must use the thinnest coating material to provide maximum protection in order to minimize heat retention, additional weight gain and various other problems.
SMT patch proofing and mounting on the space the size of the pinky finger means higher reliability and mounting accuracy, and two great progress can be summarized: first, the number of chip welding pins is reduced, and second, the welding volume is smalle
The quality of component package will directly affect the performance of chip itself and PCB design and manufacture connected with it.
By shortening construction time and compressing work-in-process retention.Difficulty is the ladder of success, the success of the process is reasonable, reasonable, reasonable.
Normally speaking, if the protection and raw material procurement in accordance with national standards, solder will not cause significant harm. Now it's basically lead-free products.
In the future, the application of KPI will become more and more important and will become an objective basis for the improvement and evaluation of intelligent manufacturing related projects.
To introduce the troubleshooting method of short circuit in PCBA processing: Open the PCB design drawing on the computer, pay attention to the IC internal short circuit, three, if found short circuit, it is recommended to take a board secant line, step by
The reason for the appearance of false welding/false welding; 1, solder pad and component pin oxidation, 2, less tin, 3, temperature is too high or too low, 4, low melting point of solder paste, 5, solder paste quality problem,
How to improve the welding hole of PCBA:(1) The PCB and parts will be exposed in the air for a long time to avoid moisture, (2) control the welding paste with moisture, It is very easy to cause skin pores and tin beads, (3) the environmental humidity cont
PCB circuit boards will produce some bad problems in the overheating temperature, so for different materials of PCB circuit boards, the temperature resistance, need to be understood in detail, do not exceed its high limit temperature, so as to avoid the P
How to choose PCBA processing solder paste: (1) according to the value and use of pcb circuit board products,(2) according to the storage time of PCB and components and surface oxidation degree determines the activity of solder paste. (3) Select solder pa
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