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Most of the electronics factory purchasers have been confused by the price of PCB multi-layer circuit boards. Even some people with many years of PCB purchasing experience may not fully understand the reasons. In fact, the PCB price is composed of the following factors. of:
PCB price composition
One, the difference of craftsmanship causes the diversity of PCB 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 circuits and dry film circuits will all cause different costs, resulting in the price diversity of PCB multi-layer circuit boards.
2. PCB price diversity caused by different difficulty
Even if the material is the same and the process is the same, the different difficulty of the PCB itself will cause different costs. For example, there are 1000 holes on two kinds of PCBs, and the hole diameter of one board is greater than 0.6mm and the hole diameter of the other board is less than 0.6mm, which will result in different drilling costs. 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 diversity of PCB prices.
Three, different materials cause the diversity of PCB prices
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 ½ Oz to 3 Oz. 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 diversity of PCB prices.
Four, PCB price differences caused by different
At present, PCB board factories generally adjust PCB prices according to different payment methods, ranging from 5% to 10%, which also causes the difference in PCB prices.
Five, the diversity of PCB prices caused by different regions
At present, in terms of geographic location in China, from south to north, prices are increasing. There are certain differences in prices in different regions. Therefore, differences in regions also cause the diversity of PCB prices.
Six. Different customer requirements will also cause different PCB 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%, which results in different costs for the board factory., Finally led to the price change of the product PCB multi-layer circuit board.
