Method for manufacturing light-emitting devices
View Patent ↗A method of manufacturing a light-emitting device includes forming a first optical element on a first carrier, wherein the first optical element comprises an opening; forming a light-emitting element in the opening; forming a second optical element on the light-emitting element; forming a second carrier on the first optical element and the second optical element; removing the first carrier after forming the second carrier on the first optical element and the second optical element; and forming two separated conductive structures under the first optical element.
1. A method of manufacturing a light-emitting device, comprising:
forming a first optical element on a first carrier, wherein the first optical element comprises an opening;
forming a light-emitting element in the opening;
forming a second optical element on the light-emitting element;
forming a second carrier on the first optical element and the second optical element;
removing the first carrier after forming the second carrier on the first optical element and the second optical element; and
forming two separated conductive structures under the light-emitting element.
2. The method of claim 1 , further comprising forming a wavelength-converting layer on the light-emitting element.
3. The method of claim 2 , wherein forming the second optical element on the light-emitting element is after forming the wavelength-converting layer thereon.
4. The method of claim 1 , further comprising forming a reflective layer on a surface of the first optical element.
5. The method of claim 1 , further comprising forming an insulating-diffusing layer between the light-emitting element and the separated conductive structures.
6. The method of claim 1 , further comprising forming a reflective layer between the light-emitting element and the separated conductive structures.
7. The method of claim 1 , further comprising removing the second carrier.
8. The method of claim 1 , further comprising forming a bonding layer under the second carrier and/or on the first optical element for bonding the second carrier to the first optical element.
9. The method of claim 1 , further comprising forming an electronic component in the opening for controlling current of the light-emitting element.
10. The method of claim 9 , wherein the electronic component electrically connects with the light-emitting element.
11. The method of claim 9 , wherein the electronic component is selected from a group consisting of rectifier, protection component, capacity, and resistance.
12. The method of claim 1 , wherein the opening exposes the first carrier.
13. The method of claim 1 , wherein a material of the second optical element is selected from a group consisting of epoxy, polyimide, benzocyclobutene, perfluorocyclobutane, Su8, acrylic resin, polymethyl methacrylate, polyethylene terephthalate, polycarbonate, polyetherimide, fluorocarbon polymer, glass, Al2O3, SINR, and spin-on-glass.
14. The method of claim 1 , further comprising forming an encapsulant between the light-emitting element and the second optical element.
15. The method of claim 1 , further comprising forming a wavelength-converting layer on the second optical element.
16. The method of claim 1 , wherein a shape of the second optical element is selected from a group consisting of triangle, semicircle, quarter circle, trapezoid, pentagon, and rectangle in a cross-sectional view.
17. The method of claim 1 , wherein a top surface of the second optical element is at the same elevation as that of the first optical element in a cross-sectional view.
18. The method of claim 1 , wherein a top surface of the second optical element is lower than that of the first optical element.
19. The method of claim 1 , wherein the separated conductive structures electrically connect with the light-emitting element and are used for receiving external voltage.