First, the diversity of prices caused by different materials used in automotive circuit boards

　　Taking ordinary double-sided boards as an example, the sheets generally have fr-4, cem-3, etc., the thickness of the board varies from 0.2mm to 5.0mm, and the thickness of copper varies from 0.5oz to 3oz. There is 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 causes the diversity of prices.

　　Second, the difference in the production process used in the automotive circuit board results in the diversity of prices

　　Different production processes will cause different costs. For example, gold-plated plates and tin-sprayed plates, gong (milling) plates and beer (punching) plates for making shapes, using silk-screen lines and dry film lines, etc., will form different costs, resulting in the diversity of prices.

　　Third, the price diversity caused by the difficulty of the automotive circuit board itself

　　Even if the material is the same and the process is the same, the difficulty of the automotive circuit board itself will cause different costs. For example, if there are 1000 holes on two kinds of circuit boards, 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, different drilling costs will be formed; if 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, the cost will inevitably increase, resulting in the diversity of prices.

　　Fourth, different customer requirements will also cause different prices

　　The level of customer requirements will directly affect the yield 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 90% pass rate, resulting in different costs for the board factory. , and finally lead to the variability of product prices.

　　Fifth, the price diversity caused by different automotive circuit board manufacturers

　　Even for the same product, due to the different process equipment and technical level of different manufacturers, different costs will be formed. Nowadays, many manufacturers like to produce tin-sprayed sheets because of the simple process and low cost, but some manufacturers produce gold-plated sheets, and the scrap rate increases. , resulting in higher costs, so they prefer to produce tin-sprayed boards, so their price of tin-sprayed boards is lower than that of gold-plated boards.

　　Six, the price difference caused by different payment methods

　　At present, automobile circuit board manufacturers generally adjust the price of automobile circuit boards according to different payment methods, ranging from 5% to 10%, which also causes price differences.

　　7. Different regions cause price diversity

　　At present, in terms of geographical location in China, from south to north, prices are increasing, and there are certain differences in prices in different regions. Therefore, different regions also cause price diversity.

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