PCBAThe board is made ofPCBCircuit boards and many electronic components are composed ofSMTandDIPtechnology to solder electronic components inPCBcircuit board.
Processing PCBA board products, must have information: PCB information, electronic bill of materials (ie BOM), patch position map, patch number map. When necessary, you need to provide schematic diagrams, PCB design documents. In order to ensure the correctness of PCBA The PCBA needs to be tested before it can be shipped, which requires customers to provide test methods.
When receiving the PCBA board order requirement, after the engineering review, start the production of PCB and the procurement of electronic components. The procurement of electronic components must be strictly in accordance with the requirements on the BOM: such as package, model, brand, and various parameters, carefully Check the purchase. If it is out of stock or the purchase cycle is long, it is necessary to replace the components specified on the BOM, which needs to be confirmed with the customer and can be replaced after obtaining the customer's consent. Some components seem to be similar, but in some specific The functional area of the product will have a great impact on the product. For example, for a fishing gear product we made before, BSS138 ON SOT-23 components were used to replace Nexperia NX138AK SOT-23 components, resulting in several product proofing, all Unsuccessful, and finally replaced the component Nexperia NX138AK SOT-23, the product is OK. The product designed by the customer himself knows the product characteristics best.
For the purchase of PCBA board components, you must find regular channels. Some irregular channels are often shoddy and sold to us as substitute materials or refurbished materials at the price of original genuine products. It is difficult for us to find that the quality of the products is good. Not guaranteed.
In the welding of components on the PCBA board, some components have directions, and it is necessary to confirm whether the direction is correct, so as to avoid the wrong direction, resulting in rework or scrap.
The PCBA board production process is very complicated. From purchasing materials, to material confirmation and storage, to production, every step needs to be careful.
