White-light light-emitting diode (LED) apparatus using cubic boron nitride film to promote radiation of chips

The invention discloses a white-light LED apparatus using the cubic boron nitride film to promote radiation of chips. The apparatus comprises a substrate, cubic boron nitride film grows on the substrate and is connected with an external radiator, n LED chips connected in parallel or in series are fixed on the cubic boron nitride film, wherein n is larger than or equal to 1, two electrodes of the LED chips are connected with an outgoing line, and the LED chips and the outgoing line are packaged by fluorescent powder adhesives. According to the LED apparatus, the structural technology is simple, a layer of the cubic boron nitride film is added between the LED chips and the substrate, heat produced by the chips is transmitted outwards from a transverse and a longitudinal channel simultaneously by using high heat conductivity of the cubic boron nitride, and accordingly, the LED radiation effect is improved, and the service life is prolonged.