Patent ID: 9583466
Date: 2017-02-28
CPC Classifications: G09G,H01L

Claim:
1. An LED device comprising: a top current spreading layer; a top cladding layer below the top current spreading layer; an active layer below the top cladding layer; a bottom cladding layer below the active layer, the bottom cladding layer including a bottom surface; sidewalls spanning the top current spreading layer, the top cladding layer, the active layer, and the bottom cladding layer, wherein the bottom surface of the bottom cladding layer extends between the sidewalls; and a singular bottom current spreading layer pillar below the bottom cladding layer and in direct contact with the bottom cladding layer, wherein the bottom current spreading layer pillar is centrally located at and protrudes from the bottom cladding layer, and the bottom surface of the bottom cladding layer that extends between the sidewalls is wider than a maximum width of the bottom current spreading layer pillar, and the bottom current spreading layer pillar is doped with a first dopant type and the second current spreading layer is doped with a second dopant type opposite the first dopant type.