light emitting diode chips
A solid-state semiconductor device, the heart of the LED is a semiconductor chip, one end of the chip is attached to a bracket, one end is a negative electrode, the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin.
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Also known as the led light chip, it is the core component of the led lamp, that is, the P-N junction. Its main function is to convert electrical energy into light energy, and the main material of the chip is monocrystalline silicon. A semiconductor chip consists of two parts, one is a P-type semiconductor, in which holes dominate, and the other is an N-type semiconductor, on which are mainly electrons. But when the two semiconductors are connected, a P-N junction is formed between them. When the current is applied to the chip through the wire, the electrons are pushed to the P region, where the electrons are combined with the holes, and then the energy is emitted in the form of photons, which is the principle of LED light. And the wavelength of light, the color of light, is determined by the material that forms the P-N junction