The price of PCB is something that many buyers have been confused about. Many people also wonder how these prices are calculated when placing an order online. Let's talk about the components of PCB price together.

　　1. Different materials used in PCB cause price diversity

　　Taking ordinary double-sided boards as an example, the sheet materials are generally FR4 (Shengyi, Kingboard, Guoji, the three prices are from top to bottom), the thickness of the board varies from 0.2mm to 3.0mm, and the thickness of copper varies from 0.5oz to 3oz. All of these have caused huge price differences in the sheet material; in terms of solder resist ink, there is also a certain price difference between ordinary thermosetting oil and photosensitive green oil.

　　2. Different surface treatment processes cause price diversity

　　Common ones are: OSP (anti-oxidation), lead spray tin, lead-free spray tin (environmental protection), gold plating, immersion gold, and some combination processes, etc. The prices of the above processes are more expensive.

　　3. The price diversity caused by the different difficulty of the PCB itself

　　There are 1000 holes on both types of circuit boards, and the hole diameter of one board is greater than 0.2mm and the hole diameter of the other board is less than 0.2mm, which will result in different drilling costs; if the other two circuit boards are the same, but the line width and line spacing are different, one All kinds are larger than 4mil, and one kind is smaller than 4mil, which will also cause different production costs; secondly, there are also some designs that do not follow the ordinary board process, such as half-hole, buried blind hole, disk hole, button. Stencil carbon oil.

　　4. Different thicknesses of copper foil cause price diversity

　　Common copper and platinum thicknesses are: 18um (1/2OZ), 35um (1OZ), 70um (2OZ), 105um (3OZ), 140um (4OZ), etc. The thickness of the copper foil above is more expensive.

　　Five, the customer's quality acceptance standards

　　Commonly used are: IPC2, IPC3, enterprise standard, military standard, etc. The higher the standard, the higher the price.

　　6. Mould fee and test stand

　　(1) The cost of molds. For samples and small batches, the general board factory adopts the drilling and milling shape, so there will be no additional milling fees. When making large batches, it is required to open a mold to punch the plate, so there is a set of mold costs. The board factory generally quotes above 1,000 yuan.

　　(2) Test fee: The prototype is generally tested by flying probe, and the board factory generally charges a test fee ranging from 100-400 yuan; a test frame is required for testing in batches, and the test frame is generally quoted by the board factory between 1000-1500 yuan.

　　Seven, the price difference caused by different payment methods

　　Payment methods with shorter arrival time, such as cash payment, will result in lower prices.

　　8. Order volume/delivery time

　　(1) The smaller the quantity, the more expensive the price is relatively, because even if it is to do 1PCS, the board factory has to do the engineering materials, and the film is indispensable for any process.

　　(2) Delivery date: The data delivered to the PCB factory should be complete (GERBER data, the number of layers of the board, the board, the thickness of the board, what to do with the surface treatment, the color of the ink, the color of the characters and some special requirements should be clearly written)

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