1,LED chip is the main raw material of LED,LED mainly rely on chip to light. 2, led chip is a solid-state semiconductor device, is a P-N junction, it can directly convert electricity into light. 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, and the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin. 1, the composition of the led chip: arsenic (AS) aluminum (AL) Gallium (Ga) indium (IN) Phosphorus (P) nitrogen (N) strontium (Si) of several of these elements. 2, led chip composition: by the gold pad, P pole, N pole, PN junction, back gold layer (double pad chip without back gold layer) composed. 1) According to the luminous brightness: A. general brightness :R, H, G, Y, E, etc.; B. High brightness :VG, VY, SR, etc.; C. Ultra-high brightness :UG, UY, UR, UYS, URF, UE, etc. D. Invisible light (infrared):IR, SIR, VIR, HIR; E. Infrared receiving tube :PT; F. Photocell: PD. 2) Divided by component elements: A. binary chip (phosphorus, gallium):H, G, etc.; B. Ternary chip (phosphorus, gallium, arsenic) :SR, HR, UR, etc.; C. Quaternary chip (phosphorus, aluminum, gallium, indium):SRF, HRF, URF, VY, HY, UY, UYS, UE, HE, UG. 2, led chip 1) according to the use of: high-power led chip, low-power led chip two; 2) According to the color: mainly divided into three kinds: red, green, blue (raw materials for white light); 3) According to the shape: generally divided into square pieces, round pieces two; 4) According to the size: low-power chips are generally divided into 8mil, 9mil, 12mil, 14mil and so on.
The LED chip is 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, and the other end is connected to the positive electrode of the power supply, so that the entire chip is encapsulated by epoxy resin. 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.