PCB News - How is the PCB "processing price" set?

How is the PCB "processing price" set?

This article is provided by PCB manufacturer
The application of PCB in the LED industry is mainly in the fields of packaging, power supply, lighting, etc., especially the rapid growth in demand for LED displays this year, and the growth of the packaging market such as COB, all of which have spawned the growth of demand in the PCB market.

This year, the upstream raw materials of the LED display have risen again and again, and the inventory of various raw materials has been in a hurry. Among them, the supply shortage of PCB boards is the most serious, and it has almost reached a state of "unstoppable".

PCB board companies have issued notices of price increases, suggesting that the price of circuit boards will increase by 5% to 20%.

Some companies said that the reason for increasing the price of circuit boards is that the prices of raw materials such as upstream copper clad laminates and copper foils continue to rise sharply.

So what are the price fact

ors that affect PCB?

Circuit board PCB processing. Different customized products are different from customers. There are few shared products. On the other hand, due to quality considerations, some customers may also specify the use of a certain manufacturer's substrate or ink, etc., In order to meet its quality and cost control requirements, so PCB processing has variable prices.

The factors of PCB price diversity

1. The diversity of prices caused by the different materials used in the PCB. Take ordinary double-sided boards as an example. The sheet materials generally include FR-4, CEM-3, etc. The thickness of the board varies from 0.6mm to 3.0mm, and the copper thickness varies from 1Oz to 3 Oz. All these have caused huge price differences in 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 has caused the price diversity.

Second, the different production processes used by PCBs result in price diversification. 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 cause different costs, resulting in a variety of prices.

Third, the price diversity caused by the different design difficulties of the PCB itself Even if the materials are the same and the process is the same, the different difficulties 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; for example, the two kinds of circuit boards are the same, but the line width and line spacing Different types are 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.

4. 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 98% pass rate, but according to class3 requirements may only be 90% The qualified rate of the board, which results in different costs for the board factory, and finally leads to the variability of product prices.

5. The price diversity caused by different PCB manufacturers. Even for the same product, because different manufacturers have different process equipment and technical levels, different costs will be formed. Nowadays, many manufacturers like to produce gold-plated plates because of the simple process and low cost, but there are also Some manufacturers produce gold-plated panels, which will increase when scrapped, resulting in higher costs. Therefore, they prefer to 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. Before, PCB board manufacturers generally adjusted PCB prices according to different payment methods, ranging from 5% to 10%, which also caused price differences. (At present, affected by the increase in the price of raw materials, the payment method for PCB orders in the LED display industry is basically a full payment method.)

Seven. Different regions cause price diversity. At present, in terms of geographic location, prices in China are increasing from south to north. There are certain differences in prices in different regions. Therefore, regional differences also result in price diversity. How to calculate PCB quotations!

Board cost (different board cost is different); Drilling cost (the number of holes and the size of the hole size affect the drilling cost); Process cost (Different process requirements of the board lead to different process difficulties, and even prices will vary); Artificial water and electricity plus management costs (this cost depends on the cost control of each factory, relatively speaking, Taiwan-funded factories are lower in many countries). The basic composition is that. As for the prices of raw materials, they are basically stable now, and prices are increasing. The possibility is unlikely.

Of course, the most primitive materials in the general environment, such as the price changes of copper and other materials, will also cause changes in PCB prices. The current industry PCB board prices are rising due to the rise in copper prices.

But as far as the plate itself 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. The thickness of the plate: Its thickness is common to us: 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. Thickness of copper and platinum: The thickness of copper and platinum is generally divided into: 18 (2/1oz), 35 (1oz) 70 (2oz), 105 (3oz), 140 (4oz) and so on.