Production technology of LED lights

high brightness leds is a new beginning, the follow-up industry. Here, we're just talking about one LED in the process of production, different LED manufacturers have different production process. The use of equipment manufacturers also may be different, so each process and the chemical formula, reverse, etc. , even if the manufacturing process of different manufacturers, from each other.

but fundamental things apply to all fields, its main idea is the same:

LED epitaxial wafer ( Formation of p-n junction) Electrode production ( Gold electrode, electrode aluminum) Production process mainly divided into three stages: the early, middle stage and final stage of growth. In technical terms: material growth, device packaging and chip preparation.

1, the prophase: wafer substrate and epitaxial growth

2 stage, the Middle East: grinding, deposition, photolithography, cutting and other process

3, the final stage: according to different needs, LED, encapsulated into a variety of forms,

this is just some simple process, production process of LED.

LED lights with the difference between a single panel and double panel

leds with prices are high, the price difference is mainly in what place? , of course, is the most important two things, one is the lamp bead is a circuit board, lamp bead price a few dollars to hundreds of one thousand one thousand, circuit board one meter to a few dollars a few cents, circuit board price difference is mainly do the work and materials, workmanship is divided into several aspects, today is to introduce the single panel and double panel. Led lights belt, single panel and double panel is what? What is the difference between them? What is the difference between material function and so on?

single panel is a copper wire, single panel is some cheap flame retardant plate, single panel does not necessarily is of poor quality board, some of the simple circuit board with a single panel is good. There is a single user and two sides are many single panel. Double panel is both sides have a copper wire. Material generally better double panel. Is mainly used in the circuit is relatively complex. Actually quality single panel and double panel, the difference is not big, basically be to see the material of copper wire of copper.

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