Factors affecting pcb price
The difference of pcb materials
Take the ordinary double-sided board as an example. The sheet materials are generally fr-4, cem-3, etc. The thickness of the sheet varies from 0.2mm to 3.0mm, and the thickness of copper varies from 0.5oz to 3oz. All of these are based on the sheet material. This has caused a huge price difference; 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.
The difference in pcb production process
Different production processes will cause different costs. Such as gold-plated and tin-sprayed boards, the production of gongs (milling) boards and beer (punching) boards, as well as a series of special processing such as gold fingers, buried blind holes, etc., the use of silk screen lines and dry film lines will make a difference The cost, leading to price diversity.
PCB itself is different in difficulty
Even if the materials are the same and the process is the same, the difficulty of the PCB itself will cause different costs. For example, two kinds of circuit boards have 1000 holes, 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 type is 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.
Different customer requirements
The level of customer requirements will directly affect the yield 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.
Different regions
At present, in terms of geographic location, prices in China are increasing from south to north, and there are certain differences in prices in different regions. Therefore, different regions also cause price diversification.
Different standards
Common ones are corporate standards, military standards, etc.
The difference in the number of PCBs
The unit price of pcb will be different due to the difference in the quantity of pcb purchased.
