Novel full-spectrum white-light micro LED chip

Abstract

The invention discloses a novel full-spectrum white-light micro LED chip. The chip comprises a body, the body is composed of a sapphire substrate, N-GaN, MQW, P-GaN, a P electrode and an N electrode, the sapphire substrate, the N-GaN, the MQW, the P-GaN and the P electrode are sequentially arranged from top to bottom, the body is fixedly arranged on a PCB through a die bonding glue, the longitudinal section of the N electrode is in an inverted-n shape, the P electrode and the N electrode are arranged in a staggered mode, a first groove and a second groove are formed in the base, the N electrode is aligned to the second groove, a heat dissipation mechanism is arranged below the base, the upper end of the heat dissipation mechanism penetrates through the second groove, a containing groove is formed in the PCB, and the upper end of the heat dissipation mechanism extends into the containing groove.The N electrode is located in the middle of the lower portion of the body, and a current in the LED chip is evenly distributed on the N electrode. The heat is uniformly distributed on the N electrode, and the heat dissipation mechanism is located under the N electrode so that the condition that the local heating of the LED chip is obvious is avoided.

Description

technical field [0001] The invention relates to the technical field of LED chips, in particular to a novel full-spectrum white light micro-LED chip. Background technique [0002] Light-emitting diodes are referred to as LEDs for short. Made of compounds containing Gallium (Ga), Arsenic (As), Phosphorus (P), Nitrogen (N), etc. Visible light can be radiated when electrons and holes recombine, so they can be used to make light-emitting diodes. It is used as an indicator light in circuits and instruments, or as a text or number display. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Due to chemical properties, it is divided into organic light-emitting diode OLED and inorganic light-emitting diode LED. [0003] With reference to the Chinese utility model patent of authorized notification number CN212303694U, it discloses a flip-chip LED chip, which include...

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Problems solved by technology

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a new type of full-spectrum white light micro-LED chip to solve the problem that the N electrode of the existing LED chip mentioned in the background technology is located on one side of the LED chip, and the LED chip When in use, the heat is concentrated on the N electrode, which makes the LED chip heat up locally, resulting in a problem that the life of the chip is reduced.

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