Serially-connected light emitting diodes, methods of forming same, and luminaires containing same

摘要

A method of making a substantially monolithic lighting device comprising serially connected LEDs and lighting systems including the same. The serially connected LEDs may be comprised in a monolithic device comprising a first LED, a layer of conductive material, and a second LED positioned thereupon. The serially connected LEDs may also be electrically coupled to a plurality of resistors obviating the necessity of an AC/DC power converter when a luminaire containing the serially connected LEDs is connected to an AC power source.

主权项

1. A method of fabricating a lighting device comprising the steps of:
providing a substrate having a surface; forming a substantially planar first LED on the surface of the substrate, the first LED having a surface; attaching a substantially planar first layer of conductive material on the surface of the first LED, the conductive material having a surface; forming a substantially planar second LED on the surface of the conductive material; etching a plurality of troughs through each of the second LED, the first layer of conductive material, and the first LED; and removing the substrate.