ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,980, issued on June 10, was assigned to CreeLED Inc. (Durham, N.C.).
"Reflective layers for light-emitting diodes" was invented by Michael Check (Apex, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting diode (LED) chip with reflective layers having high reflectivity. The LED chip may include an active LED structure including an active layer between an n-type layer and a p-type layer. A first reflective layer is adjacent the active LED structure and comprises a plurality of dielectric layers with varying optical thicknesses. The plurality of dielectric layers may include a plurality of first dielectric layers and a plurality of sec...