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1. PCBA patch processing test form
The process flow of PCBA patch processing is very complicated, including multiple important processes such as PCB board manufacturing process, component procurement and inspection, SMT patch assembly, DIP plug-in, PCBA testing and so on. Among them, PCBA testing is the most...
The process flow of PCBA patch processing is very complicated, including multiple important processes such as PCB board manufacturing process, component procurement and inspection, SMT patch assembly, DIP plug-in, PCBA testing and so on. Among them, PCBA testing is the most critical quality control link in the entire PCBA processing process, which determines the final use performance of the product. So what are the PCBA testing methods? The following Tongsen Technician technicians will organize and introduce for you.
PCBA testing mainly includes five forms: ICT test, FCT test, aging test, fatigue test, and test under harsh environment.
1. ICT test mainly includes circuit on-off, voltage and current value, fluctuation curve, amplitude, noise, etc.
2. FCT testing requires IC program firing, simulation testing of the entire PCBA board function, discovery of problems in the hardware and software, and the necessary production fixtures and test racks.
3. The fatigue test is mainly to sample the PCBA board, and perform high-frequency and long-term operation of the function, observe whether there is failure, and judge the probability of failure in the test, so as to feedback the working performance of the PCBA board in the electronic product.
4. The test in harsh environments is mainly to expose the PCBA board to extreme temperature, humidity, drop, splashing, and vibration, and obtain the test results of random samples, thereby inferring the reliability of the entire PCBA board batch product.
5. The aging test is mainly to energize the PCBA board and electronic products for a long time, keep them working and observe whether there are any failures. After the aging test, the electronic products can be sold in batches.
Regarding the PCBA test format, I will introduce it here today. The PCBA process is complicated. During the production and processing, various problems may occur due to improper equipment or operation, and there is no guarantee that the products produced are qualified. Therefore, PCB testing is required to ensure that each product does not have quality problems. .
2. Introduction of PCBA labor and materials
PCBA contracting labor and materials is a very common processing mode, which requires R&D companies to do much less than processing with supplied materials, and can have more time and energy to do business development. PCBA contracting labor and materials does not require component procurement and boarding, so the board And the quality of the components may not be as sure as the processing of the supplied materials, so what needs to be paid attention to in the PCBA package of labor and materials, I will introduce to you next.
1. About circuit design: For a PCBA, a good circuit design is the basis for success. It is the most basic to design the circuit according to the actual needs of the product. However, some engineers may forget to consider the actual processing in the process of designing the circuit. Difficulty. The processing cost of the same function board due to the different processing difficulty is definitely different, and it is not conducive to the electronic processing circuit board. In the processing process, it will also encounter some problems that hinder the processing efficiency and actual use performance.
2. Regarding the selection of materials: For PCBA labor and materials, the material is one of the key factors to ensure the quality, the material of the circuit board, the selection of electronic components and so on. If you want to produce a high-quality board, the choice of materials is very important. The process and materials of the board can be directly requested. The procurement of components can be given standards and price ranges, and the supply of important components can also be specified directly. Commercial brand. In the quotation of labor and materials, there is often a situation that the quotation is higher than the psychological price of the entrusted processing party. This actually requires a targeted communication between the R&D enterprise and the PCBA processing plant. The quality of high-quality components is difficult to buy at the price of inferior products. Arrived. If you need to control costs, you also need to communicate with the purchasing staff of the processing plant. How to reduce costs while ensuring the quality of the product plan is also a technical task.
3. How to choose a PCBA factory: After all, the choice of PCBA factory is the most important thing. A reliable processing factory may not be able to give a very attractive quotation, but it can provide a reassuring service. Abundant processing experience and responsible service attitude, promptly responding to emergencies and providing practical solutions, these are important signs of whether a processing plant is reliable.
