Light-emitting device package and method of manufacturing the same
View Patent ↗A light-emitting device package uses a metal layer as a reflective region and includes a light-emitting device chip and an electrode pad that are disposed on an insulating layer. In addition, the electrode pad and an electrode pattern of a printed circuit board are connected to each other by an electrode pattern formed of conductive ink. A method of manufacturing a light-emitting device package includes forming an insulating layer on a metal layer, and bonding a light-emitting device chip and an electrode pad on the insulating layer. The electrode pad and a printed circuit board are connected to each other by conductive ink.
1. A method of manufacturing a light-emitting device package, the method comprising:
preparing a metal layer;
forming an insulating layer on the metal layer;
forming a first electrode pattern on an edge portion of the insulating layer;
bonding at least one light-emitting device chip on the insulating layer;
forming at least one electrode pad around the at least one light-emitting device chip such that the at least one electrode pad is electrically separated from the at least one light-emitting device chip and the first electrode pattern; and
forming a second electrode pattern for connecting the first electrode pattern and the at least one electrode pad to each other on the insulating layer.
2. The method of claim 1 , further comprising forming a solder mask pattern on an edge portion of the insulating layer so as to cover the first electrode pattern.
3. The method of claim 1 , wherein the forming of the second electrode pattern comprises forming the second electrode pattern by printing conductive ink.
4. The method of claim 1 , further comprising wire-bonding the at least one light-emitting device chip to the at least one electrode pad by a metal wire.
5. The method of claim 1 , further comprising bonding a plurality of light-emitting device chips on the insulating layer, and
wire-bonding the plurality of light-emitting device chips to the at least one electrode pad by a metal wire so that the plurality of light-emitting device chips share the at least one electrode pad.
6. The method of claim 1 , wherein the forming of the at least one electrode pad comprises forming a plurality of n-type electrode pads on the insulating layer, and forming a continuous n-type electrode patterns that connects the plurality of n-type electrode pads to each other.
7. The method of claim 1 , wherein the forming of the at least one electrode pad comprises forming a plurality of p-type electrode pads on the insulating layer, and forming a continuous p-type electrode pattern that connects the plurality of p-type electrode pads to each other.
8. The method of claim 1 , further comprising:
forming a dam surrounding the at least one light-emitting device chip on the insulating layer by using a printing method; and
forming a phosphor layer by coating a phosphor inside the dam.
9. The method of claim 8 , further comprising forming an optical lens on the phosphor layer.