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Circuit board PCB processing belongs to OEM customers' foundry products. The products customized by different customers are not the same, and there are few shared products. On the other hand, due to quality considerations, some customers may also specify the use A certain manufacturer's substrates, or inks, etc., in order to meet its quality and cost control requirements, so PCB processing has variable prices.
The factors of PCB price diversity
1. The different materials used in PCB cause the price diversity
Take the ordinary double-sided board as an example. The sheet materials generally include FR-4, CEM-3, etc. The sheet thickness varies from 0.6mm to 3.0mm, and the copper thickness varies from 1Oz to 3 Oz. All these are caused by the sheet material. In terms of solder mask ink, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil, so the difference in materials causes the price diversity.
Second, the difference in the production process used by PCB causes the diversity of prices
Different production processes will cause different costs. For example, gold-plated boards and tin-sprayed boards, the production of gongs (milling) boards and beer (punching) boards, and the use of silk-printed lines and dry film lines will cause different costs, resulting in diversified prices.
Third, the price diversity caused by the difficulty of PCB design
Even if the material is the same and the process is the same, the difficulty of the PCB itself will cause different costs. If there are 1000 holes on two kinds of circuit boards, the hole diameter of one board is larger than 0.6mm and the hole diameter of the other board is smaller than 0.6mm, which will result in different drilling costs; for example, the two kinds of circuit boards are the same, but the line width and line spacing are the same. Different types are greater than 0.2mm, and one type is less than 0.2mm, which will also cause different production costs, because the difficult board has a higher scrap rate, which will inevitably increase the cost, and thus cause the price diversity.
Fourth, different customer requirements will also cause different prices
The level of customer requirements will directly affect the production rate of the board factory. For example, a board according to IPC-A-600E, class1 requires a 98% pass rate, but according to class3 requirements, it may only have a pass rate of 90%, resulting in different costs for the board factory, And finally lead to volatile product prices.
Five, the price diversity caused by different PCB manufacturers
Even for the same product, because different manufacturers have different process equipment and technical levels, they will have different costs. Nowadays, many manufacturers like to produce gold-plated plates because of the simple process and low cost. However, some manufacturers produce gold-plated plates, and the scrap will increase. As a result of increased costs, they would rather produce tin-sprayed panels, so their quotation for tin-sprayed panels is lower than that of gold-plated panels.
Six, price differences caused by different payment methods
In the past, PCB board manufacturers generally adjusted PCB prices according to different payment methods, ranging from 5% to 10%, which also caused price differences. (At present, affected by the increase in the price of raw materials, the payment method for PCB orders in the LED display industry is basically a full payment method.)
7. Different regions cause price diversity
At present, in terms of geographic location in China, from south to north, the price is increasing. There are certain differences in prices in different regions. Therefore, different regions also cause the diversity of prices. How to calculate the PCB quotation!
Plate cost (different plate cost is different);
Drilling costs (the number of holes and the size of the aperture affect the drilling costs);
Process cost (different process requirements of the board lead to different process difficulties, and even prices will vary);
Artificial water and electricity plus management costs (this cost depends on the cost control of each factory, relatively speaking, Taiwan-funded factories are relatively low in many countries). The basic composition is this. As for the prices of raw materials, they have basically stabilized now, and prices have increased. The possibility is unlikely.
Of course, the most primitive materials in the general environment, such as the price changes of copper and other materials, will also cause changes in PCB prices. The current industry PCB board prices are rising due to the rise in copper prices.
