Semiconductor light-emitting device and the manufacturing method thereof
View Patent ↗This application provides a semiconductor light-emitting device and the manufacturing method thereof. The semiconductor light-emitting device comprises a semiconductor light-emitting structure and a thinned substrate. The semiconductor light-emitting structure comprises a plurality of semiconductor layers and a plurality of first channels, wherein a plurality of first channels has a predetermined depth that penetrating at least two layers of the plurality of semiconductor layers.
1. A semiconductor light-emitting device, comprising:
a base layer having a first surface and a second surface; and
a semiconductor light-emitting structure above the first surface of the base layer, comprising a plurality of semiconductor layers, a plurality of transparent channels, and a plurality of conductive channels not penetrating through an entirety of the plurality of semiconductor layers, wherein the conductive channels each comprises a conductive layer;
wherein the plurality of semiconductor layers comprises a first conductivity type semiconductor layer above the first surface of the base layer, an active layer above the first conductivity type semiconductor layer, and a second conductivity type semiconductor layer above the active layer;
wherein the first conductivity type semiconductor layer has an exposed portion not covered by the active layer, and a bonding pad is directly above the exposed portion of the first conductivity type semiconductor layer;
wherein the semiconductor light-emitting device is devoid of an insulating material between one of the conductive layers and the base layer and devoid of an insulating material in contact with the first surface of the base layer; and
wherein the plurality of transparent channels penetrates at least the first conductivity type semiconductor layer and the active layer.
2. The semiconductor light-emitting device according to claim 1 , wherein the plurality of transparent channels comprises silicon oxide, silicon nitride, organic polymer, air, gallium nitride, silicon carbide, zinc oxide, or diamond.
3. The semiconductor light-emitting device according to claim 1 , wherein the plurality of transparent channels comprises a transparent material having a refractive index different from that of the base layer, wherein a difference of the refractive index between the transparent material and the base layer is greater than 0.1.
4. The semiconductor light-emitting device according to claim 1 , further comprising an intermediate layer between the semiconductor light emitting structure and the base layer.
5. The semiconductor light-emitting device according to claim 4 , wherein the intermediate layer comprises an electricity connecting layer.
6. The semiconductor light-emitting device according to claim 5 , wherein the semiconductor light-emitting device is devoid of an insulating material between the electricity connecting layer and the base layer.
7. The semiconductor light-emitting device according to claim 1 , wherein the base layer comprises a conductive material.
8. The semiconductor light-emitting device according to claim 1 , wherein the plurality of conductive channels comprises a dielectric layer surrounding a part of a periphery of the conductive layer.
9. The semiconductor light-emitting device according to claim 1 , wherein the material of the conductive layers comprises metal, metal alloy, metal oxide, or conductive polymer.
10. The semiconductor light-emitting device according to claim 1 , wherein the plurality of transparent channels has a diameter between 1 and 10 μm.
11. A semiconductor light-emitting device, comprising:
a carrier, wherein the carrier has a first surface and a second surface;
an intermediate layer above the first surface of the carrier;
an insulating layer above the intermediate layer;
a semiconductor light-emitting structure above the insulating layer and comprising a plurality of semiconductor layers, a plurality of conductive channels, each comprising a conductive layer, wherein the plurality of semiconductor layers comprises a first conductivity type semiconductor layer above the insulating layer, an active layer above the first conductivity type semiconductor layer, and a second conductivity type semiconductor layer above the active layer, and the first conductivity type semiconductor layer comprises a first exposed portion and a second exposed portion both not covered by the active layer;
an electricity connecting layer in the intermediate layer, wherein the electricity connecting layer is electrically connected with each conductive layer;
a bonding pad directly above the first exposed portion of the first conductivity type semiconductor layer; and
a second bonding pad above the second exposed portion and electrically connecting with the second conductivity type semiconductor layer through one of the conductive channels and the electricity connecting layer.
12. The semiconductor light-emitting device according to claim 11 , wherein the semiconductor light-emitting structure further comprises a plurality of transparent channels having a predetermined depth penetrating through at least the first conductivity type semiconductor layer and the active layer.
13. The semiconductor light-emitting device according to claim 12 , wherein the plurality of transparent channels has a diameter between 1 and 10 μm.
14. The semiconductor light-emitting device according to claim 12 , wherein the plurality of transparent channels comprises silicon oxide, silicon nitride, organic polymer, air, silicon carbide, zinc oxide, or diamond.
15. The semiconductor light-emitting device according to claim 11 , wherein one of the plurality of conductive channels has a predetermined depth penetrating through at least two layers of the plurality of semiconductor layers and extending to the insulating layer, and one of the plurality of conductive channels comprises a dielectric layer surrounding a part of a periphery of the conductive layer.
16. The semiconductor light-emitting device according to claim 11 , wherein the semiconductor light-emitting structure further comprises a plurality of transparent channels not penetrating through the plurality of semiconductor layers.
17. The semiconductor light-emitting device according to claim 11 , wherein the bonding pad is electrically connected with the first conductivity type semiconductor layer.
18. The semiconductor light-emitting device according to claim 11 , wherein the semiconductor light-emitting device is devoid of an insulating material between the electricity connecting layer and the carrier.
19. The semiconductor light-emitting device according to claim 11 , wherein the semiconductor light-emitting device is devoid of an insulating material between one of the conductive layers and the carrier, and wherein the carrier and the intermediate layer comprise different materials.
20. The semiconductor light-emitting device according to claim 11 , wherein the material of the conductive layers comprises metal, metal alloy, metal oxide, or conductive polymer.