Why is 01005 process expensive in PCBA processingxx?

In pcba processing, 01005 is not only a problem of high precision, but also its processing price is much more expensive than other specifications. Why is the placement cost of 01005 so expensive in smt processing?

Speaking of this, I thought of a representative customer case. This customer is a medical electronics company. The previous products are all biased towards stability and use traditional components. They are cautious and cautious with respect to components of 01005 specifications.

Later, due to product updates, the precision and volume of this medical surgical robot were optimized and improved. So it is necessary to use 01005 specification components. In the quotation stage, customers expected to find pcba processing suppliers according to the target price of 0603. Later, after inquiring about the price, they found that no one was willing to take orders at a loss, and finally had to raise their target price.

01005 components

Under normal circumstances, 01005 itself is also used in the design of high precision and high added value of the product, because the process of using 01005 components is relatively difficult, the packaging accuracy is high, and the process is complex, not only the high processing cost, but also its own price It's not cheap either. In addition, there are several other items that will cause the entire product to be made at a high price.

1. PCB: The lead spacing of the 01005 original is very close, which leads to the improvement of the processing accuracy of the pcb pads, and the process requirements are more complicated.

2. Solder paste: relatively high-quality solder paste is needed to control the creep rate and soldering quality.

3. Steel mesh: Because of the pin spacing, the process window is very narrow and the stability is relatively poor. There will be great requirements for the opening of the steel mesh and the material.

4. Nitrogen: In order to ensure the welding effect, 01005 will generally use a nitrogen reflow furnace for welding, which has higher requirements for equipment and will increase equipment expenditure.

For 01005 this kind of product is mainly miniaturization, high-tech. Therefore, when setting the 01005 process parameters in the smt patch processing plant, it is necessary to strictly use SPI, AOI, X-ray and other testing equipment to optimize process parameters and auxiliary processing.