2 basic principles for selecting LED lamp bead manufacturers
According to incomplete statistics, in the Pearl River Delta region, there are more than 200 manufacturers of packaging LED lamp beads (packaged LEDs). Raw materials, process control, and reliability are relatively guaranteed, but their prices are high, which will be limited in some low-cost solutions. In this case, the price of domestically packaged LED lamp beads is relatively high compared to LED lamp beads. Well-known brands have obvious advantages. However, the prices of LED lamp beads of different brands vary greatly, and some prices are even several times different, but the quality is difficult to evaluate. If the quality is evaluated based on price alone, it is obviously not enough to meet the reliability guarantee.
This makes LED finished lamp manufacturers encounter the same problem: how to choose LED lamp manufacturers? Today we will briefly discuss it.
1. Audit the LED packaging manufacturers
Because LEDs have high requirements for ESD and MSD, in addition to the conventional ISO process audit, special attention should be paid to the environmental conditions of the LED packaging workshop. Generally, the humidity in the production workshop is 50%~70%, which is too high. High humidity will make the LED damp, and too low humidity will easily generate static electricity in the workshop. At present, the anti-static of LED chips is about 2000V. The production workshops that encapsulate LED lamp beads must do anti-static treatment. Observe whether there are items that are prone to static electricity in the workshop, and whether anti-static facilities such as workbenches and floors are grounded. Whether the dust-free workshop is truly dust-free, and whether there are dust-generating items in the workshop, such as some papers may also generate dust. In addition, observing the clothes of the workers can also show the factory's ability to manage dust-free and anti-static.
2. Exchange technical issues with the technical personnel of LED packaging manufacturers
It is necessary to communicate LED packaging technology with the technical director of the LED packaging manufacturer. A good product must be developed by professional technicians. The ability level of the technicians directly affects the reliability of their products. The technical personnel of LED packaging manufacturers You must know how to choose materials such as stents, chips, and silica gels? In the production process, how to control the amount and proportion of phosphor and glue? How is the thermal resistance of LED lamp beads obtained? And so on, there needs to be a logical answer and relevant test data.
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