The entire SMT processing process is carried out by the materials on the BOM list. Mainly because the components listed in the bill of materials determine the functionality of the pcba board. This determines that using the correct components is critical to the functionality of the finished circuit board. The BOM list is not only a list of components, it also contains the coordinates of each component on the board light board. The brand, model, material number, and tag number calibrated in the bill of materials provide a guarantee for the purchasing engineer to find a completely matching supplier. It also provides information support for finding cost-effective bulk prices. If some parts may not be available for purchase, procurement engineering can also look for mentioned materials based on the information in the BOM to provide customers with a full range of services. So what factors need to be paid attention to when formulating such an important link?

1. Detailed and comprehensive

Ideally, the BOM (Bill of Materials) should have comprehensive material information (brand, model, part number, tag number) to help smt chip processing plants create your process control data from scratch. And ensure that suppliers can complete quotation evaluation and delivery estimation in a short time.

2. Mark alternative materials

There may be some critical components that manufacturers are expected to purchase from suppliers who strictly abide by the calibration. At the same time, considering the fluctuation of the component market and the need for cost optimization, alternative models can be selected when necessary.

3. Functional Assessment

When listing components in the bill of materials, it must be verified according to the engineering design data, and it has been confirmed that it can be produced and used normally. Avoid larger modification costs due to later adjustments.

4. Document Changes

From product design to actual production, changes may occur in the BOM and these changes need to be documented. In order to quickly change the process instructions in the smt patch processing and proofing.

Conclusion: In fact, we can think of the BOM list as our shopping list when we go to the supermarket. If our shopping list is wrong, then we may not buy the items we need, and eventually lead to high costs due to negligence.