A light-emitting diode structure comprises a first epitaxial unit; a second epitaxial unit separated from the first epitaxial unit; a crossover metal layer comprising a first protruding portion entering the first epitaxial unit; a conductive layer separated from the crossover metal layer and comprising a second protruding portion entering the second epitaxial unit; a conductive connecting layer surrounding the first protruding portion; and an electrode arranged on the conductive connecting layer.
1. A light-emitting diode structure comprising:
a first epitaxial unit;
a second epitaxial unit separated from the first epitaxial unit;
a crossover metal layer comprising a first protruding portion entering the first epitaxial unit;
a conductive layer separated from the crossover metal layer and comprising a second protruding portion entering the second epitaxial unit;
a conductive connecting layer surrounding the first protruding portion; and
an electrode arranged on the conductive connecting layer.
2. The light-emitting diode structure of claim 1 , wherein the conductive connecting layer has a portion not covered by the first epitaxial unit.
3. The light-emitting diode structure of claim 1 , further comprising an isolation layer formed between the crossover metal layer and the conductive layer.
4. The light-emitting diode structure of claim 1 , wherein the conductive layer is wider than the crossover metal layer.
5. The light-emitting diode structure of claim 1 , wherein the first protruding portion has an elevation substantially equal to that of the second protruding portion.
6. The light-emitting diode structure of claim 1 , wherein the conductive layer comprises a portion arranged under the crossover metal layer.
7. The light-emitting diode structure of claim 1 , wherein a width of the conductive layer is substantially equal to that of the light-emitting diode structure.
8. The light-emitting diode structure of claim 1 , further comprising a first isolation layer arranged between the conductive connecting layer and the first protruding portion.
9. The light-emitting diode structure of claim 1 , further comprising a roughened surface on top surfaces of the first epitaxial unit and the second epitaxial unit.
10. The light-emitting diode structure of claim 1 , further comprising a permanent substrate under the first epitaxial unit, and a bonding layer disposed between the permanent substrate and the first epitaxial unit.