Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7217641 | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2007-05-15 |
| 7195993 | Methods of fabricating gallium nitride semiconductor layers by lateral growth into trenches | Tsvetanka Zheleva, Darren Thomson, Scott A. Smith, Thomas Gehrke, Robert F. Davis | 2007-03-27 |
| 7135720 | Gallium nitride material transistors and methods associated with the same | Walter H. Nagy, Ricardo M. Borges, Jeffrey D. Brown, Apurva D. Chaudhari, James W. Cook +8 more | 2006-11-14 |
| 7095062 | Methods of fabricating gallium nitride semiconductor layers on substrates including non-gallium nitride posts, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2006-08-22 |
| 6956250 | Gallium nitride materials including thermally conductive regions | Ricardo M. Borges, T. Warren Weeks, Jr., Thomas Gehrke | 2005-10-18 |
| 6897483 | Second gallium nitride layers that extend into trenches in first gallium nitride layers | Tsvetanka Zheleva, Darren Thomson, Scott A. Smith, Thomas Gehrke, Robert F. Davis | 2005-05-24 |
| 6864160 | Methods of fabricating gallium nitride semiconductor layers on substrates including non-gallium nitride posts | Thomas Gehrke, Robert F. Davis | 2005-03-08 |
| 6686261 | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2004-02-03 |
| 6649287 | Gallium nitride materials and methods | T. Warren Weeks, Jr., Edwin L. Piner, Thomas Gehrke | 2003-11-18 |
| 6621148 | Methods of fabricating gallium nitride semiconductor layers on substrates including non-gallium nitride posts, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2003-09-16 |
| 6617060 | Gallium nitride materials and methods | T. Warren Weeks, Jr., Edwin L. Piner, Thomas Gehrke | 2003-09-09 |
| 6611002 | Gallium nitride material devices and methods including backside vias | T. Warren Weeks, Jr., Edwin L. Piner, Ricardo M. Borges | 2003-08-26 |
| 6602764 | Methods of fabricating gallium nitride microelectronic layers on silicon layers | Thomas Gehrke, Robert F. Davis, Darren Thomson, Kieran Mark Tracy | 2003-08-05 |
| 6586778 | Gallium nitride semiconductor structures fabricated by pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on weak posts | Thomas Gehrke, Robert F. Davis | 2003-07-01 |
| 6545300 | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2003-04-08 |
| 6521514 | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates | Thomas Gehrke, Robert F. Davis | 2003-02-18 |
| 6489221 | High temperature pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates | Thomas Gehrke, Robert F. Davis, Darren Thomson | 2002-12-03 |
| 6486042 | Methods of forming compound semiconductor layers using spaced trench arrays and semiconductor substrates formed thereby | Thomas Gehrke, Robert F. Davis | 2002-11-26 |
| 6462355 | Pendeoepitaxial gallium nitride semiconductor layers on silicon carbide substrates | Thomas Gehrke, Darren Thomson, Eric P. Carlson, Pradeep Rajagopal, Robert F. Davis | 2002-10-08 |
| 6403451 | Methods of fabricating gallium nitride semiconductor layers on substrates including non-gallium nitride posts | Thomas Gehrke, Robert F. Davis | 2002-06-11 |
| 6380108 | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on weak posts, and gallium nitride semiconductor structures fabricated thereby | Thomas Gehrke, Robert F. Davis | 2002-04-30 |
| 6376339 | PENDEOEPITAXIAL METHODS OF FABRICATING GALLIUM NITRIDE SEMICONDUCTOR LAYERS ON SILICON CARBIDE SUBSTRATES BY LATERAL GROWTH FROM SIDEWALLS OF MASKED POSTS, AND GALLIUM NITRIDE SEMICONDUCTOR STRUCTURES FABRICATED THEREBY | Thomas Gehrke, Darren Thomson, Eric P. Carlson, Pradeep Rajagopal, Robert F. Davis | 2002-04-23 |
| 6265289 | Methods of fabricating gallium nitride semiconductor layers by lateral growth from sidewalls into trenches, and gallium nitride semiconductor structures fabricated thereby | Tsvetanka Zheleva, Darren Thomson, Scott A. Smith, Thomas Gehrke, Robert F. Davis | 2001-07-24 |
| 6261929 | Methods of forming a plurality of semiconductor layers using spaced trench arrays | Thomas Gehrke, Robert F. Davis | 2001-07-17 |
| 6255198 | Methods of fabricating gallium nitride microelectronic layers on silicon layers and gallium nitride microelectronic structures formed thereby | Thomas Gehrke, Robert F. Davis, Darren Thomson, Kieran Mark Tracy | 2001-07-03 |