Patent ID: 9680077
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A light-emitting diode (LED) lighting device, comprising: a substrate having a top surface, a base portion and a plurality of protruding portions present on the base portion, the base portion and the protruding portions defining at least one first recess and at least one second recess, wherein the base portion and the protruding portions are made of one piece of material, at least one of the first recess and the second recess has a bottom surface and at least one sidewall adjacent to the bottom surface, and the bottom surface and the sidewall are reflective; an isolation layer at least covering the first recess and the second recess; a first bottom electrode disposed in the first recess and on the isolation layer; a second bottom electrode disposed in the second recess and on the isolation layer; at least one first vertical LED disposed in the first recess and having a top surface, wherein a height of the top surface of the first vertical LED is lower than a height of the top surface of the substrate; a first conductive bonding layer bonding the first vertical LED onto the first bottom electrode; at least one second vertical LED disposed in the second recess; a second conductive bonding layer bonding the second vertical LED onto the second bottom electrode; a first transparent sealing material disposed in the first recess, wherein the first transparent sealing material has at least one opening therein to expose at least a part of the first vertical LED; a second transparent sealing material disposed in the second recess, wherein the second transparent sealing material has at least one opening therein to expose at least a part of the second vertical LED; and a top electrode electrically connecting the first vertical LED and the second bottom electrode, such that the first vertical LED and the second vertical LED are electrically connected in series.