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The PCB quotation fee consists of the following parts:
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 fees (this fee depends on the cost control of each factory)
This is the basic structure. As for the prices of raw materials, they have basically stabilized now, and there is little possibility of price increases.
As far as the plate is concerned, the main factors affecting the price are as follows:
1. Sheet material: FR-4, our common double-sided and multi-layer sheet, its price is also related to the thickness of the board and the thickness of copper and platinum in the middle of the board, and FR-I, CEM-1 are our common single-sided boards The material is different, and the price of this material is also very different from the above double-sided, multi-layer board.
2. The thickness of the plate: Its thickness is commonly used: 0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 1.6, 2.0, and the thickness and price of our conventional plates are not very different.
3, copper platinum thickness: copper platinum thickness will affect the price, copper platinum thickness is generally divided into: 18um (2/1oz), 35um (1oz), 55um (1.5oz), 70um (2oz), etc.
4. Suppliers of raw materials, the most common and commonly used ones are: Shengyi/Jiantao/International and so on.
Process cost:
1. It depends on the circuit on the PCB. If the wire density is thin (below 4/4mm), the price will be calculated separately.
2. There is BGA on the board, so the cost will rise relatively. In some places, BGA is another one.
3. It depends on the surface treatment process. Our common ones are: spray lead tin (hot air leveling), OSP (environmental protection board), spray pure tin, tin, silver, gold, etc. Of course, the surface technology is different. The price will also be different.
4. It depends on the process standard; what we commonly use is: IPC2, but some customers require higher requirements, (for example, 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 board needs to be cost-calculated first. At the same time, it also needs 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 the most special and complex of all industries. From cutting, pressing, forming, to FQC, packaging, and finished 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.
In addition, PCB buyers should pay attention to that when choosing a PCB board manufacturer, you cannot choose from a price point alone, but to compare the strength of the PCB manufacturer, approximate product quotations, and service items.
