PCB News - PCB circuit board price can be estimated

1. The different thickness of copper foil causes the price diversity of circuit boards

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

Second, the price of the circuit board is different due to the mold fee and the test frame

(1) Mold cost. For samples and small batches, the general plate factory uses the drilling and milling shape, and there is no additional milling fee. When making large quantities, mold punching is required, so there is a set of mold costs. The board factory generally quotes above RMB 1,000.

(2) Test fee: The prototype is generally tested by flying probes, and the board factory generally charges 100-400 yuan for the test fee; the test rack must be opened for testing in batches, and the general board manufacturer's quotation is between 1,000-1,500 yuan.

PCB circuit board price can be estimated

Three, the surface treatment process is different, resulting in the diversity of the price of the circuit board

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

Fourth, the different materials used in the PCB cause the diversity of the price of the circuit board

For example, the ordinary double-sided board, the sheet material generally has FR4 (Shengyi, Kingboard, Guoji, three prices from top to bottom), the thickness varies from 0.2mm to 3.0mm, and the copper thickness varies from 0.5oz to 3oz. All these have caused a huge price difference 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.

5. Order quantity/delivery time

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

(2) Delivery time: The data delivered to the PCB factory must be complete (GERBER information, 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 must be clearly written).

Six, the price difference of circuit boards caused by different payment methods

The shorter the payment method, such as cash payment, the lower the price.

7. Customer's quality acceptance standard

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

Eight, the PCB price diversity caused by the difficulty of PCB itself

Two kinds of circuit boards have 1000 holes. One board has a hole diameter of more than 0.2mm and the other board has a hole diameter of less than 0.2mm, which will result in different drilling costs. All kinds are larger than 4mil, and one kind is smaller than 4mil, which will also cause different production costs; secondly, some designs that do not follow the ordinary board process flow are also extra money, such as half-holes, buried blind holes, holes in the disk, and buttons Board printing carbon oil.