The SMT price calculation is almost transparent. First of all, you need to understand the concept of "point". Different companies use different algorithms, but for a PCB board, the total cost of the original SMT chip processing is the same.

The secondary purpose of SMT chip processing is to place the chip components on the pads of the PCB. Some companies calculate one pad as a point, but there are cases where two welding meters are counted as one point. This article takes the pad calculation as a point as an example. Just calculate the number of all the pads on the PCB, but encounter some special components, such as inductors, large capacitors, ICs, etc., need to be calculated separately.

SMT Cost Factor

Currently, the price of solder joints varies from market to market, depending on:

1. Unit price by process

2. According to the number of orders

3. The difficulty of pressing the board

4. Boot fee: After the order of the small batch SMT chip processing is calculated according to the number of points, the type of board components will be seen, the time of debugging the mounter, and the difficulty of the first piece will be different.

5. Proofing fee: SMT SMT processing order A SMT patch proofing order within 100 pieces, the difficulty of the board, the time of the program, the time of the machine transfer is different, and the engineering fee is not charged.

6. Steel net fee: According to the size of the PCB board, open different types of steel mesh. According to the precision of the chip on the PCBA board, the electrified polished steel mesh or ordinary steel mesh is selected.

SMT chip processing cost calculation:

1. Calculate the cost processing fee = the number of points * 1 point of the unit price (processing fee including: red plastic, solder paste, AOI testing, etc.)

2. Other cost test stands, steel mesh and other unilaterally agreed costs are calculated separately.