Package structure for light emitting diode and method thereof
A package structure of a light emitting diode includes a substrate structure, a connection layer, and at least one conductive passage. The substrate structure sequentially includes a conduction board, an insulation layer, and a conductive layer. The insulation layer is configured to electrically insulate the conduction board from the conductive layer, and also to insulate a first portion from a second portion of the conduction board. The substrate structure has an opening to expose the conduction board. The connection layer configured to support and electrically couple to a first electrode of a light emitting diode (LED) is disposed in the opening. The connection layer is also configured to electrically couple to the conduction board and to be electrically insulated from at least one portion of the conductive layer, which is coupled to a second electrode of the LED. The conductive passage electrically couples the second portion of the conduction board and the portion of conductive layer, which is insulated from the connection layer.
1. A method for assembling a light emitting device, comprising:
providing a light emitting diode having a first electrode and a second electrode;
providing a substrate sequentially from bottom to top having a conduction board, an insulation layer, and a conductive layer;
forming a trench in said conduction board to divide said conduction board into a first portion and a second portion;
filling said trench with an insulation material to form an insulation channel for insulating said first portion from said second portion;
forming an opening in said conductive layer and said insulation layer to expose said conduction board;
forming a connection layer in said opening, said connection layer coupling with said first portion of said conduction board and being insulated from at least one portion of said conductive layer;
forming a hole penetrating through said substrate, said hole defining an inner surface;
electroplating said inner surface with a conductive material for coupling said at least one portion of said conductive layer and said second portion of said conduction board;
electrically coupling said first electrode of said light emitting diode with said connection layer; and
electrically coupling said second electrode of said light emitting diode with said at least one portion of said conductive layer.
2. The method of claim 1 , comprising a step of forming a channel for insulating said connection layer from said at least one portion of said conductive layer.
3. The method of claim 2 , further comprising a step of forming an insulating filling layer to fill said channel.
4. The method of claim 2 , wherein said step of forming said channel comprises forming a plurality of channels to divide said conductive layer into a plurality of portions and to insulate said connection layer from at least two portions of said conductive layer.
5. The method of claim 1 , wherein said step of forming said trench comprises:
forming a plurality of trenches in said conduction board to divide said conduction board into said first portion, said second portion, and a third portion; and
filling said insulation material in said plurality of trenches to form said insulation channel for insulating said first, said second, and said third portions of said conduction board from each other.
6. The method of claim 1 , further comprising forming an adhesive layer on said connection layer to adhere said light emitting diode onto said connection layer.
7. The method of claim 1 , comprising forming a metal wire for coupling said second electrode of said light emitting diode with said at least one portion of said conductive layer.