Sorra, Inc. Patent applications |
Patent application number | Title | Published |
20130017635 | Techniques of Forming Ohmic Contacts on GaN Light Emitting Diodes - A method of forming ohmic contacts on a light emitting diode that features a surface treatment of a substrate includes exposing a surface of a p-type gallium nitride layer to an acid-containing solution and a buffered oxide etch process. A quantum well is formed in a gallium nitride substrate and a layer of p-type gallium nitride is deposited over the quantum well. The surface of the p-type gallium nitride is exposed to an acid-containing solution and then a buffered oxide etch process is performed to provide an etched surface. A metal stack including a layer of silver disposed between layers of platinum is then deposited. | 01-17-2013 |
20110286484 | System and Method of Multi-Wavelength Laser Apparatus - A system and method for providing laser diodes emitting multiple wavelengths is described. Multiple wavelengths and/or colors of laser output are obtained by having multiple laser devices, each emitting a different wavelength, packaged onto the same substrate. In other embodiments, multiple laser devices having different wavelengths are formed from the same substrate. | 11-24-2011 |