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Over the years, PCB prices have been volatile and familiar to people inside and outside the industry. Even some people with many years of PCB industry experience may not fully understand the ins and outs of this. Let’s analyze the main factors that affect PCB prices:
1. The different materials used in PCB cause the price diversity
Take the ordinary double-sided board as an example. The sheet materials are generally fr-4, cem-3, etc. The sheet thickness varies from 0.2mm to 5.0mm, and the copper thickness varies from 0.5oz to 3oz. All of 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 has caused 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 a variety of prices.
Third, the price diversity caused by the difficulty of PCB itself
Even if the material is the same and the process is the same, the difficulty of the PCB itself will cause different costs. For example, there are 1000 holes on two kinds of circuit boards, and 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 Different, one is greater than 0.2mm, and the other 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, the price diversity caused by different PCB manufacturers
Even for the same product, because different manufacturers have different process equipment and technical levels, different costs will be generated. Nowadays, many manufacturers like to produce tin-sprayed panels because of the simple process and low cost. However, some manufacturers produce gold-plated panels and the scrap rate increases., Resulting in higher costs, so they prefer to produce tin plate, so their price of tin plate is lower than the gold plate.
Five, price differences caused by different payment methods
At present, PCB boardmanufacturers generally adjust PCB prices according to different payment methods, ranging from 5% to 10%, which also causes price differences.
6. Different regions cause price diversity
At present, in terms of geographical location in China, prices are increasing from south to north, and there are certain differences in prices in different regions. Therefore, different regions also cause price diversification.
Seven, 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 and class1 requires a 98% pass rate, but according to the class3 requirement, it may only have a pass rate of 90%, which results in different costs for the board factory., And finally lead to volatile product prices.
