Now the LED market prices are varied and the quality is uneven. Many reasons are that in the Chinese market, the appearance of the products is similar and there are no patents, so the price war leads to the uneven quality. Everyone wants a good price and good quality, but it is hard to find such a thing on the market.

A senior prawn, engaged in LED packaging engineering research and development and technical management in many packaging factories, but has now left 1~LED industry engineer 2~LED industry engineer 3~LED industry engineer (important said three times) , I will tell you all the tricks I have learned from working in the LED lamp bead packaging factory for about 8 years. I hope downstream manufacturers can open their eyes and choose good LED lamp products.

How are LED lamp beads made:

Taking the high-power imitation lumen as an example, the LED lamp beads are made by the production process of solid crystal, welding wire, dispensing, cover lens filling (some products do not have this process), light splitting, packaging and other production processes, and each link is different. Technology, but technology is not the main thing, the quality of raw materials is the main thing, the raw materials determine the price, such as 1w wafer 35mil lamp beads, there are 0.2 yuan, 0.4 yuan, 0.6 yuan, 0.8 yuan, 1 yuan For the above, their prices are all reasonable, there is no violent price, it is caused by the different selection of raw materials. The reporter is an engineer in a packaging factory, and he has seen all kinds of raw materials, such as a high-quality packaging factory, a fighter jet packaging factory in the garbage, etc., and they have all stayed there. Now I will disclose their material selection and prices to everyone. , hope this helps.

Why is the price of LED lamp beads so different:

Take the 35mil chip of Epistar as an example. There are 0.2-0.4 yuan of 1w wafer 35mil lamp beads on the market (basically the defective products collected from packaging factories, re-split and sold again), and about 0.6 yuan of wafer 35mil lamp beads (claimed to be wafers). Chips, in fact, are generally made of pseudo wafers), there are 0.8 yuan wafer 35mil lamp beads (the thing is real, but it is produced with edge material, and the quality is uneven), and there are also about 1 yuan wafer 35mil lamp Beads (generally selected materials are better, and packaging factories with heavy quality will use them). The informant will tell everyone what kind of materials each packaging factory chooses and what kind of products they make (here, imitation lumen lamp beads are used as an example, and the same is true for other lamp beads).

1/ Die-bonding process is tricky: Solid-die is to fix the chip on the bracket. The main materials used are the bracket and the chip. Here we talk about the quality of the chip and the bracket.