Light emitting diode packaging structure
A technology of light-emitting diodes and packaging structures, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of unfavorable light emitting upward, affecting light extraction efficiency, unfavorable integration, etc., to achieve concentrated color point output, high light efficiency, Production cost reduction effect
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[0054] Example 1
[0055] Such as figure 1 As shown, this embodiment discloses a light emitting diode packaging structure, which is composed of a flip chip 102, a first reflective material layer 101, a second reflective material layer 103, a first transparent material layer 104, and a wavelength conversion material layer 105.
[0056] The flip chip 102 is located on the first reflective material layer 101 with through holes, and the electrodes 1021 and 1022 of the flip chip 102 are embedded in the through holes of the first reflective material layer 101, that is, the side surface of the electrode or Part of the side surface is surrounded by the first reflective material layer 101. The positive and negative electrodes (1021 and 1022) of the flip chip 102 contain one of metal copper or gold, and the thickness is between 10 μm and 100 μm. The first reflective material layer 101 and the thicker electrode can relieve the PCB's stress on the flip chip when the application terminal is u...
Example Embodiment
[0059] Example 2
[0060] Such as figure 2 As shown, compared with Embodiment 1, the bottom inner edge of the second reflective material layer 103 of this embodiment is spaced a certain distance from the side surface of the flip chip 102, so that the size of the flip chip can be kept unchanged. Enlarge the light-emitting area, which can improve the light efficiency to a certain extent.
Example Embodiment
[0061] Example 3
[0062] Such as image 3 As shown, compared with Embodiment 1, the first transparent material layer 104 of this embodiment contains a wavelength conversion material. For example, a red light conversion material is added to the first transparent material layer, but only yellow light or green light conversion material is included in the wavelength conversion material layer 105, so as to prevent the yellow light or green light from being absorbed by the red light conversion material again, which can be effective Enhance light efficiency.
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