Soraa, Inc.

Soraa Laser Diode, Inc.

Sorra, Inc.

Nicholas Andrew Vickers

Andrew Felker

James W Raring

Mathew C Schmidt

Rafael Ignacio Aldaz

Nicholas J Pfister

Kenneth John Thomson

David Press

A method for forming optical devices includes providing a gallium nitride substrate having a crystalline surface region and a backside region. The backside is subjected to a laser scribing process to form scribe regions. Metal contacts overly the scribe regions.

Method of fabricating optical devices using laser treatment of contact regions of gallium and nitrogen containing material

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.

Techniques of forming ohmic contacts on GaN light emitting diodes

Techniques of forming Ohmic contacts on GaN light emitting diodes

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Hayward, CA, United States of America

Nicholas Andrew Vickers