Light emitting diode package having an LED chip mounted on a phosphor substrate
View Patent ↗Provided is a light emitting diode (LED) package including a phosphor substrate; an LED chip mounted on the phosphor substrate; a circuit board mounted on the other region of the phosphor substrate excluding the region where the LED chip is mounted; an electrode connection portion for electrically connecting the LED chip and the circuit board; and a sealing member that covers the LED chip, the circuit board, and the phosphor substrate.
1. A method of manufacturing an LED package, the method comprising the steps of:
preparing a phosphor substrate mounted on a substrate fixing device, the substrate fixing device having a concave portion formed thereon for fixing the phosphor substrate in the concave portion;
mounting a circuit board on an upper surface of the phosphor substrate which is exposed to the outside through an upper surface of the substrate fixing device;
mounting an LED chip on the upper surface the phosphor substrate excluding a region in which the circuit board is mounted;
electrically connecting the LED chip and the circuit board through an electrode connection portion;
forming a sealing member on the upper surface of the phosphor substrate such that the LED chip, the circuit board, and the phosphor substrate are covered by the sealing member to form the LED package; and
removing the LED package from the substrate fixing device.
2. The method according to claim 1 , wherein the phosphor substrate is a glass substrate having phosphor contained therein.
3. The method according to claim 1 , wherein the phosphor substrate is a glass substrate coated with phosphor.
4. The method according to claim 1 , wherein the electrode connection portion is formed of wire.
5. The method according to claim 1 , wherein the sealing member is formed of at least one of transparent epoxy and silicon.
6. The method according to claim 5 , wherein the sealing member contains a reflective material.
7. The method according to claim 1 , wherein the circuit board is a ceramic substrate having one or more pairs of electrodes formed therein.
8. The method according to claim 1 , further comprising forming a dam for defining a sealing member filling space on the circuit board before forming the sealing member.
9. The method according to claim 8 , wherein the dam is formed adjacent to either side wall of the substrate fixing device formed by the concave portion.
10. The method according to claim 8 , wherein the sealing member is formed by filling the sealing member filling space.