High power LED
A light-emitting diode, high-power technology, applied in electrical components, electric solid-state devices, circuits, etc., can solve the problems of large thermal resistance, small metal base area, overheating of light-emitting diodes, etc. handy effect
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[0024] The present invention mainly includes at least one light-emitting diode chip, and the light-reflective metal electrode on the outer surface of the pn junction of the chip is mounted on a silicon substrate with a higher thermal conductivity than a silicon substrate through self-localized solder mixed with small silver beads or small gold beads. On a diamond substrate; the self-localized solder mixed with small silver beads or small gold beads is adsorbed by the small silver beads or small gold beads when the solder is melted, and will not flow out to cause short circuit of the electrode, that is, no dielectric layer is needed at the welding place. Self-localization, while its thickness can be controlled by the diameter of small silver beads or small gold beads, its thickness can be very thin, such as less than 0.04mm, and the contact area with the chip can be large, such as greater than 30% of the chip area; the diamond substrate There is a solderable circuit conductive laye...
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