source:Other information release time:2023-06-14 Hits: Popular:PCB Assembly company
During the production process, the treatment and cleaning of flexible print circuits are more important than processing rigid boards. Incorrect cleaning or the operation of violations of regulations may cause failure in the later product manufacturing. This is determined by the sensitivity of the materials used in flexible printing circuits, and the flexible printed circuit plays an important role during the manufacturing process. The substrate is affected by mechanical pressure such as waxing, layer pressure, and electroplating. Copper foil is also susceptible to the sound and dental sounds, and the extended part ensures the maximum flexibility. Copper foil mechanical damage or processing hardening will reduce the flexible life of the circuit.
During the manufacturing period, a typical flexible single -sided circuit must be cleaned at least three times. However, due to its complexity, multi -base boards need to be cleaned 3-6 times. In contrast, the rigid multi -layer printed circuit board may require the same number of cleaning times, but the cleaning program is different. When cleaning flexible materials, you need to be more careful. Even due to the extremely light pressure during the cleaning process, the spatial stability of the flexible material will be affected, and the panel will be stretched in the Z or Y direction, which depends on the bias of the pressure. Pay attention to environmental protection for chemical cleaning of flexible printing circuit boards. The cleaning process includes alkaline dye baths, thorough rinsing, micro -etching and final cleaning. The damage to the film material often occurs during the launch of the panel. When stirring in the pool, removing the shelf from the pool or not a shelf, and the destruction of the surface tension in the clearing pool.
The holes in the flexible board are generally punching, which leads to the increase in processing costs. Drilling is also possible, but this requires special adjustment of drilling parameters to obtain a polluting wall. After drilling, remove the drilling dirt in the water cleaner with ultrasonic stirring.
It has been proven that the large -scale production of flexible boards is cheaper than rigid printed circuit boards. This is because the flexible layer pressure plate enables the manufacturer to produce circuit on a continuous basis. This process starts with layer pressure plates and can directly generate the finished board. To create a continuous processing diagram of printing circuit boards and etching a flexible printed circuit board, all production processes are completed in a series of machines. Silk net printing may not be part of this continuous transmission process, which causes the interruption of the online process.
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