How to calculate the cost and quotation of PCB board
It is assumed that many pcb buyers are overwhelmed by the ever-changing pcb price. Even PCb buyers with years of experience may not understand the original reason. There are many factors that affect the price of the pcb board. Due to PCB board material, production process, difficulty, customer needs, regions, payment methods, manufacturers and other factors, PCB board process costs are different. The following CITIC Hualai will provide you with a detailed introduction:
First, the price of the material chosen for the PCB is different.
Simply put, the double-panel, the board generally has FR-4, CEM-3, etc. The thickness of the board ranges from 0.6mm to 3.0mm, and the thickness of copper varies from 1/2z to 30z. These forms create huge cost gaps. In the case of solder resist inks, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil, so the difference in materials leads to price diversification. The article "How to calculate the cost of a pcb board?" has been explained in detail in the article, and everyone is interested to check it out.
Second, the different manufacturing processes used in the PCB result in price diversification.
Different production processes can result in different costs. For example, the shape of gold-plated and tin-plated plates, drilled (milled) plates and beer (punched) plates, the use of wire mesh and dry film lines will result in different costs, resulting in price diversification.
Third, the price diversity caused by the difficulty of the PCB itself
Even if the materials are the same and the process is the same, the difficulty of the PCB itself can lead to different costs. For example, if there are 1000 holes in the two plates, the hole diameter of one plate is larger than 0.6 mm, and the hole diameter of the other plate is less than 0.6 mm, which will result in different drilling costs; if the two plates are the same, the line width is the same. The difference is that one is greater than 0.2 mm and one is less than 0.2 mm, which will also result in different production costs. Due to the difficulties of the board of directors, the cost will increase, which will lead to price diversification.
Fourth, different customer requirements can also lead to price defects.
The level of customer requirements will directly affect the output of the board factory. For example, according to IPC-A-600E sheet, grade 1 requires 98% pass rate, but according to category 3 requirements, the pass rate may be only 90%, resulting in different sheet factories. At the end of the cost, there are a variety of products.
Fifth, the price difference caused by different manufacturers
Even the same product, because different manufacturers have different process equipment and technical level, will form different costs. Many manufacturers now prefer to produce gold-plated sheets. Due to the simplicity of the process and the low cost, some manufacturers also produce gold-plated sheets that will rise when discarded. Costs increase, so they prefer to produce tinplate, so their tinplate prices are lower than goldplates.
Six, the price difference caused by different payment methods
At present, CITIC China PCB board manufacturers generally adjust PCB prices according to different payment methods, ranging from 5% to 10%, which will also cause price differences.
Seventh, different regions lead to price diversification
At present, geographically, from south to north, prices have risen and prices in different regions have also changed. Therefore, different regions will also lead to price diversification. How to calculate PCB price!
1, single sheet cost (different sheet costs are different)
2, drilling costs (the number of holes and the size of the hole affect the cost of drilling)
3, process cost (different process requirements of the board lead to different process difficulties, and the price will be different)
4, artificial hydropower plus management costs (this cost depends on the cost control of each factory, relatively speaking, Taiwan-funded factories are very low in many countries)
The basic composition is this. As for the price of raw materials, it is basically stable now, and the possibility of price increases is not high.