Manufacturing method of LED (light-emitting diode) chip with inverted structure
An LED chip and manufacturing method technology, applied to electrical components, circuits, semiconductor devices, etc., can solve the problems of electrode soldering or de-soldering, low luminous efficiency of chips, etc., so as to increase the packaging yield and avoid electrode soldering or de-soldering. Welding, the effect of reduced area
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[0019] Combine below figure 2 , To further explain the present invention:
[0020] An LED chip with a flip-chip structure, including an N-type electrode formation area and a P-type electrode formation area. The N-type electrode formation area and the P-type electrode formation area are located on both sides of the LED chip respectively. The N-type electrode formation area is sequentially from top to bottom. Including substrate 1, buffer layer 2, N-type layer 3, N-type confinement layer 4, active area layer 5, P-type confinement layer 6, P-type layer 7, P-type ohmic contact layer 8, light reflection layer 9 And the insulating film 10, one end surface of the N-type electrode 11 passes through the insulating film 10 and is connected to the light reflection layer 9, and the other end surface of the N-type electrode 11 is connected to the heat sink 28 through the PCB board 27; the P-type electrode formation area is from top to The bottom includes the substrate 1, the buffer layer 2,...
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