PCB News - Talking about the problem of purchasing confusion: how to calculate the price of PCB board

Talking about the problem of purchasing confusion: how to calculate the price of PCB board

Many people enjoy the convenience brought by the PCB board online ordering system, and at the same time they have questions about how the PCB board price is calculated when placing an order online. This is also something that many buyers have been confused about. Then, how is the PCB price calculated? Woolen cloth? How are PCB prices affected? Today, the editor of the PCB factory will announce the answers to the questions for everyone, please continue to read:

How to calculate the price of PCB board

One: PCB uses different materials to produce the diversity of prices

Let's take the ordinary double-panel as an example: FR4 sheets are generally used, and brands include: Shengyi, Kingboard, and Guoji. The three prices are from top to bottom. The board thickness varies from 0.2mm to 3.0mm, and the copper thickness varies from 0.5oz to 3oz. Each of these differences will cause huge price differences for PCB boards.

Two: PCB surface treatment methods cause the price diversity

The price of the surface treatment process is from low to high: OSP (anti-oxidation)

Three: The price diversity caused by the difficulty of PCB itself

Two kinds of PCB 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. A line width and line spacing> 4mil, and a line width and line spacing <4 mil, will also cause different production costs; secondly, there are some special PCB board process designs that also charge extra money, such as half-holes, buried blind holes, Carbon oil is printed on the hole in the disk and the key board.

Four: the different thickness of copper foil causes price diversity

The price of copper foil thickness from low to high: 18um (1/2OZ) <35um (1OZ) <70um (2OZ) <105um (3OZ) <140um (4OZ) and so on.

Five: Customer's quality acceptance criteria

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

Six: mold fee and test stand

(1) Mold cost: For prototypes and small batches,PCB board factories generally use drilling and milling shapes, so there will be no additional milling fees. When large batches are made, mold punching is required, so there is a set of mold costs., The specific cost needs to consult the board dealer;

(2) Testing fee: Generally, flying probe testing is used for prototypes, and the board factory generally charges 100-400 yuan for the testing fee; a test rack is required to test in batches, and the general board manufacturer's quotation is between 1,000-1,500 yuan.

Seven: Order quantity and delivery date

(1) Order quantity: model price＞small batch price＞large batch price, the more the quantity, the cheaper the price, the less the quantity, the more expensive the price is. Because even if it is 1PCS, the circuit board manufacturer has to do the engineering data and produce the film, and the process will not be less.

(2) Delivery time: The data delivered to the PCB factory must be complete (GERBER information, the number of layers of 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), different delivery The period also has an impact on the price.

The above are some introductions on how to calculate the PCB price. For the specific board cost, it is best to consult the PCB board factory. For PCB price calculations, you can consult us online.