Upside-down mounted LED chip and manufacturing method thereof

Abstract

The invention provides an upside-down mounted LED chip and a manufacturing method thereof. N type metal electrode layers are arranged in the peripheral edges of the upside-down mounted LED chip, and aP type metal electrode layer is arranged in the middle part of the upside-down mounted LED chip. Even if solder paste is connected with P or N poles due to damage of an insulating layer in the edge of the upside-down mounted LED chip, the P type and N type metal electrode layers are avoided from short circuit and electric leakage failure. A light emitting layer, a P type semiconductor layer and the P type metal layer are arranged in the middle part of the upside-down mounted LED chip, so that a mesa step (quantum well) is far from the edge of the chip, and the problem that a traditional upside-down mounted LED chip has the risk of electric leakage due to tendency to short circuit of the P and N electrodes and lack of an isolated slot is solved. The leakage risk can be reduced effectively,the working reliability of products is improved, and the yield rate of the products is improved.

Description

technical field [0001] The present application relates to the technical field of semiconductors, in particular to a flip-chip light emitting diode chip and a manufacturing method of the flip-chip light emitting diode chip. Background technique [0002] A light-emitting diode (Light-Emitting Diode, LED) is a semiconductor electronic component that can convert electricity into light. This electronic component appeared as early as 1962. In the early days, it could only emit red light with low luminosity. Later, other monochromatic light versions were developed. Today, the light that can be emitted has covered visible light, infrared rays and ultraviolet rays, and the luminosity has also increased to a considerable extent. of luminosity. And the use is also used as indicator lights, display panels, etc. from the beginning; with the continuous advancement of technology, light-emitting diodes have been widely used in displays, TV lighting decoration and lighting. [0003] At pre...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problem that cracks are prone to appear on the edge of the traditional flip-chip LED chip and cause the short circuit of the P electrode and the N electrode. Flip-chip light-emitting diode chip manufacturing method and flip-chip light-emitting diode chip with leakage risk

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