High voltage light emitting diode and manufacturing method thereof

Abstract

The invention discloses a high voltage light emitting diode and a manufacturing method thereof. The high voltage light emitting diode comprises a ceramic substrate, four blue light chips, four green light chips and six red light chips and is characterized in that: in a high voltage light emitting diode structure, a square groove and a bridge-type resistance slot are arranged in the middle of the square ceramic substrate. The manufacturing method comprises the following steps of: firstly, welding a bridge-type resistor in the bridge-type resistance slot; secondly, bonding the four high voltageblue light chips with voltage of 47 to 55 volts, the four high voltage green light chips with voltage of 47 to 55 volts and the six high voltage red light chips with voltage of 32 to 37 volts into the square groove by using an automatic die bonder through high heat-conductive insulating glue; after the four blue light chips, the four green light chips and the six red light chips are subjected to curing, bonding golden wires to the four blue light chips, the four green light chips and the six red light chips by using an automatic wire bonder, namely connecting the four high voltage blue light chips in series, connecting the four high voltage green light chips in series and connecting the six high voltage red light in series, and connecting the three series circuits in parallel; connecting both ends of the parallel circuit to electrodes; and thirdly, uniformly stirring silica gel 6301 and coating the silica gel 6301 in the square groove, wherein the silica gel is slightly bubbled to overflow and quickly transmitted into an oven for curing, so that the high voltage light emitting diode which has a good radiating effect and low manufacturing cost and is suitable for batch production is obtained.

Description

technical field [0001] The invention relates to a light emitting diode. Background technique [0002] The use of light-emitting diodes is becoming more and more extensive. From the original indicator lights, it is developing into household lighting, and its energy-saving and environmental protection effects are remarkable. [0003] Because the existing diodes use low-voltage chips, the working voltage is about 3V, and the current of the 1W diode is 350 mA. The current is too large, and the problem of heat dissipation is difficult to solve. In order to dissipate the heat quickly, the size and area of ​​the aluminum substrate are often increased. Increased its cost again, the high cost, common people can't afford it now, affects its popularization. [0004] The problem of diode heat dissipation is a problem in the world today. How to reduce the heat of diodes during operation, improve light efficiency, and how to reduce costs have become the most concerned issues today. Con...

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Problems solved by technology

[0003] Because the existing diodes use low-voltage chips, the working voltage is about 3V, and the current of the 1W diode is 350 mA. The current is too large, and the problem of heat dissipation is difficult to solve. In order to quickly dissipate the heat, the size and area of ​​the aluminum substrate are often increased. It also increases its cost, and the high cost is now unaffordable for ordinary people, which affects its promotion

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