LED chip industry as an important link in the LED industry chain, its performance directly determines the development of LED industry. At present, domestic power-type lighting LED chip products have made great progress in the light efficiency, life and reliability performance, and developed a series of key technology such as graphic substrate, transparent electrode and omni-directional reflector. Domestic chips are expected to rely on superior performance and competitive price advantage in many areas of application gradually penetrate and eventually replace the import chip.
LED Chip, a solid-state semiconductor device, the heart of the LED is a semiconductor chip, one end of the chip is attached to a bracket, the other end is the cathode, the other side of the power supply of the cathode, so that the entire chip is encapsulated in epoxy resin.
Also known as LED Light-emitting chip, is the core of LED light components, that is, the N knot. Its main function is: to convert electricity into light energy, the main chip material for monocrystalline silicon. The semiconductor chip consists of two parts, one part is the P-type semiconductor, the hole in it occupies the dominant position, the other end is the N-type semiconductor, here mainly is the electron. But when the two semiconductors are connected, they form a n knot. When the current is acting on the chip through the wire, the electrons are pushed to the P area, where the electrons are combined with the holes in the P area, and then the energy is emitted in the form of photons, which is the principle of LED luminescence. The wavelength of light is the color of light, which is determined by the material forming the n knot.