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Common quality problems of circuit board

time :2020-07-15 author : from: scanning : classify :Technical articles
​In the increasingly fierce market competition, circuit board manufacturers are trying to reduce costs in order to obtain a larger market share.

In the increasingly fierce market competition, circuit board manufacturers are trying to reduce costs in order to obtain a larger market share. While pursuing cost reduction, they often ignore the quality of circuit boards. In order to let customers have a more in-depth understanding of this issue, we will share some details of the industry to everyone, so that customers can choose circuit board suppliers more rationally.



The common quality problems of circuit board generally include short circuit and open circuit of circuit board, green oil foaming, green oil falling off, substrate delamination, board warping, solder pad falling off, poor tin coating and open circuit of circuit board after aging. The fundamental reasons are that the production process of circuit board factory is not up to standard, the production equipment is backward, the selection of raw materials is poor, and the management is chaotic.


Reason one: the production process is not up to standard


Circuit board production involves a series of interdisciplinary subjects, such as electroplating, chemical industry, machinery, etc. each process must be carried out in accordance with strict production process, and each process must be equipped with corresponding detection and testing equipment. The concentration of liquid medicine in electroplating process changes at any time. Different types of circuit boards have different current size and time, which will affect the quality of circuit boards. Only strict production process guidance, production according to process parameters and continuous laboratory inspection can ensure that the quality of the circuit board produced is always stable.


Reason 2: backward production equipment


The basic way to improve the quality of circuit board is to ensure the quality of hardware, increase the investment in equipment, and make the equipment achieve high efficiency and stability. With the progress of science and technology, the circuit equipment is more and more advanced, and the price is more and more expensive, leading to some small circuit board factories can not afford to add more expensive equipment.


Reason 3: raw materials are cheap and inferior


The quality of raw materials is the cornerstone of the quality of circuit boards. If the quality of raw materials is not up to standard, the circuit will appear blistering, delamination, cracking, warping and uneven thickness. What is more hidden is that some PCB factories use mixed materials, some of which are genuine boards and some are leftovers, so as to dilute the cost. The hidden danger is that we don't know which batch will have problems.


Reason 4: management confusion


Circuit board factory has many production processes and long cycle. How to realize scientific and orderly management and reduce management cost is a difficult problem. With the progress of science and technology, especially the development of network, it is possible to manage the traditional PCB Factory by means of network informatization. Only by making a breakthrough in this respect can we form the core competitiveness. Poor management of the factory, the quality of its circuit board will naturally fluctuate, a variety of problems emerge in endlessly, repeated.


To sum up: the quality problem of circuit board is a very serious problem, which needs the long-term efforts of the circuit board factory.