PCB News - Factors affecting the price change of PCB manufacturing​

Circuit board PCB processing is a product manufactured by OEM customers. The products customized by different customers are not the same, and there are few shared products. On the other hand, due to quality considerations, some customers may also specify the use A certain manufacturer's substrates, or inks, etc., in order to meet its quality and cost control requirements, so PCB processing has variable prices.

The price of PCB is composed of the following factors:

1. The different materials used in PCB lead to the diversification of 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 1Oz 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 causes the price diversity.

Second, the difference in the production process used by the PCB results in 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 all cause different costs, resulting in diversified 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; 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, different customer requirements will also cause different prices. The level of customer requirements will directly affect the yield of the board factory, such as a board according to IPC-A-600E, class1
A 98% pass rate is required, but according to the class 3 requirement, it may only have a 90% pass rate, which causes different costs for the board factory, and later changes in product prices.

Fifth, the price diversity caused by different PCB manufacturers.
Even for the same product, because different manufacturers have different process equipment and technical levels, they will have different costs. Nowadays, many manufacturers like to produce gold-plated plates because of the simple process and low cost. However, some manufacturers produce gold-plated plates, and the scrap will increase. As a result of increased costs, they would rather produce tin-sprayed panels, so their quotation for tin-sprayed panels is lower than that of gold-plated panels.

6. The price difference caused by different payment methods.
At present, PCB board manufacturers generally adjust PCB prices according to different payment methods, ranging from 5% to 10%, which also causes price differences.

Seven, regional differences result in price diversification.

At present, from the geographical point of view, from south to north, the price is increasing. There are certain differences in prices in different regions. Therefore, different regions also cause the diversity of prices. How to calculate the PCB quotation!

1. Plate cost (different plate cost is different)
2. Drilling costs (the number of holes and the size of the aperture affect the drilling costs)
3. Process cost (different process requirements of the board lead to different process difficulties, and even prices will vary)
4. Artificial water and electricity plus management expenses (this cost depends on the cost control of each factory, relatively speaking, Taiwan-funded factories are much lower) The basic composition is that, as for the prices of raw materials, they have basically stabilized and increased. The price is unlikely.

Eight: As far as the plate is concerned: the main factors affecting the price are as follows:
1. Plate material: FR-4, CEM-3, these are our common double-sided and multi-layer plates, and their price is also related to the thickness of the plate and the thickness of copper and platinum in the middle of the plate, while FR-I, CEM-1 are these It is our common single-board material, and the price of this material is also very different from the above double-sided, multi-layer board.
2. It is the thickness of the sheet, and its common thickness is: 0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 1.6, 2.0, 2.4, 3.0, 3.4, and the thickness and price of our conventional plates are not very different.
3. The thickness of copper and platinum will affect the price. The thickness of copper and platinum is generally divided into: 18 (2/1OZ), 35 (1OZ) 70 (2OZ), 105 (3OZ), 140 (4OZ), etc.

Nine: Other factors of PCB circuit board production
1. It depends on the circuit on the PCB. If the line density is thinner (below 4/4mm), the price will be calculated separately
2. There is also a BGA on the board, so the cost will rise relatively, and in some places it is BGA and how much money is another.
3. It depends on the surface treatment process. Our common ones are: lead tin spray (hot air leveling), OSP (environmental protection board), pure tin spray, tin, silver, gold, etc. Of course, the surface technology is different. The price will also be different.
4. It also depends on the process standard; what we commonly use is: IPC2, but the requirements of customers will be higher. (such as Japanese) Our common ones are: IPC2, IPC3, enterprise standard, military standard, etc., of course, the higher the standard, The price will be higher.
Every PCB sold in the PCB industry is customized by customers. Therefore, the quotation of the PCB boardneeds to be cost-calculated first. At the same time, it is also necessary to refer to the automatic layout calculation of the PCB computer, and the material utilization rate of the layout on the standard-size copper clad laminate is determined. Comprehensive quotation.

The cost calculation of the PCB industry is special and complex in all industries, from cutting, pressing, forming, to FQC, packaging, and finishing storage. It needs to be based on the material costs, labor costs, and manufacturing costs invested in each process. Perform step-by-step accounting, and then accumulate costs in batches based on the order product number. And for different types of products, the standard rate of the process will be different. For some products, such as blind and buried vias, immersion gold boards, and pressed copper seat boards, some special calculation methods must be adopted due to the particularity of the process or all materials. In the same way, the size of the drill nozzle used in the drilling process will also affect the cost of the product, which directly affects the calculation and evaluation of WIP costs and scrap costs.