Will the design error of screen printing position number affect PCBA patch processing? It can be clearly said that the screen printing position number does not determine whether the final patch is correct.
Due to the high temperature pyrolysis of the organic matter in the flux, it is difficult for the air bubbles to escape, resulting in the gas being wrapped in the alloy powder. From the process can be seen, organic matter by the heat produced by the main w
Common pads are: 1, square pad, 2, round pad, 3, island pad, 4, polygonal pad, 5, oval pad, 6, open shape pad
The silk screen position number does not determine whether the final patch is correct. Many experienced engineers found that deleting the bit number silk screen printing, PCBA product patch back and no problem. Generally, the machine patch locates the dev
The reasons for white spots in PCBA processing are as follows: 1. The circuit board is under inappropriate thermal stress; 2. 2. Due to the influence of mechanical force, part of the resin is separated from the glass fiber, forming white spots; 3. Some PC
The basic process composition of SMT patch processing includes: screen printing (or dispensing), mounting (curing), reflow welding, cleaning, detection, repair screen printing
The basic working conditions of PCBA patch after processing are as follows: 1. Working conditions: Temperature: 18℃ to 28℃, humidity: 35% ~ 75%; 2. 2. Operation object: all PCbas; 3. Operator: with certain general SMT and DIP welding status identification
In PCBA manufacturing process, the solder paste printing and the system quality control details of reflux temperature control are the key links in PCBA manufacturing process, which is very necessary for the printing of high-precision PCB with special comp
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