judith

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So far judith has created 975 blog entries.

Pcb assembly printed circuit board flatness requirements?

In order to ensure the quality of the appearance of the circuit board and, the surface of the circuit board PCB assembly have high request for smoothness, high flatness, fine lines, high precision of the circuit board baseplate surface defect is strict, especially for substrate flatness requirement is more strict, SMB warp degree requirements of [...]

2019-07-15T01:42:49+00:00July 15th, 2019|

Circuit board maintenance technology of several tough move

First, the failure caused by capacitor damage is the highest in electronic equipment, especially in the electrolytic capacitor damage is the most common. Capacitance damage is shown as: capacity decreases; Total loss of capacity; The leakage; Short circuit. Capacitors play different roles in the circuit and the faults caused by them have their own characteristics. [...]

2024-03-20T13:21:50+00:00July 15th, 2019|

Circuit board welding operation site environment requirements?

The specialty is engaged in the electronic product SMT processing welding operator contact every day is printed circuit board, solder and flux related materials, tools, and other work. Therefore, in addition to paying attention to the above electricity safety, operators also need to master the knowledge of this aspect, in order to ensure their safety [...]

2019-07-10T01:35:41+00:00July 10th, 2019|

Recycling process for recycling waste printed circuit boards

With the rapid development of the electronic technology industry, printed circuit boards (PCBs) have been printed in large quantities and then burned or discarded due to the constant upgrading of electronic products. This not only leads to a large amount of waste of metal and non-metal materials in the circuit board, but also the heavy [...]

2024-03-20T13:21:50+00:00July 10th, 2019|

What about circuit board design? Have to guard against PCB layout traps

4. A possible coupling of magnetic field lines, similar to figure 1. To sum up, the cloth board should follow the following principles: Complete grounding should be ensured below the lead. Sensitive leads should be arranged vertically. If leads must be parallel, ensure adequate spacing or use protective wires. Grounding via The main problem with [...]

2024-03-20T13:21:50+00:00July 6th, 2019|
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