Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276044 | Low etch pit density gallium arsenide crystals with boron dopant | Rajaram Shetty, Weiguo Liu | 2025-04-15 |
| 12084790 | Low etch pit density 6 inch semi-insulating gallium arsenide wafers | Rajaram Shetty, Weiguo Liu | 2024-09-10 |
| 12054851 | Low etch pit density, low slip line density, and low strain indium phosphide | Weiguo Liu, Wen Wan Zhou, Sungnee George Chu, Wei Zhang | 2024-08-06 |
| 11680340 | Low etch pit density 6 inch semi-insulating gallium arsenide wafers | Rajaram Shetty, Weiguo Liu | 2023-06-20 |
| 11608569 | Low etch pit density, low slip line density, and low strain indium phosphide | Weiguo Liu, Wen Wan Zhou, Sungnee George Chu, Wei Zhang | 2023-03-21 |
| 9691617 | IIIA-VA group semiconductor single crystal substrate and method for preparing same | Davis Zhang, Vincent Wensen Liu, Yuanli Wang | 2017-06-27 |
| 8361225 | Low etch pit density (EPD) semi-insulating III-V wafers | Weiguo Liu, M. Hani Badawi | 2013-01-29 |
| 7566641 | Low etch pit density (EPD) semi-insulating GaAs wafers | Weiguo Liu, M. Hani Badawi | 2009-07-28 |
| 5169486 | Crystal growth apparatus and process | Shanxiang Zhang | 1992-12-08 |
| 4285740 | Wrapped tantalum diffusion barrier | David C. Larbalestier | 1981-08-25 |
| 4242536 | Aluminum-stabilized multifilamentary superconductor | — | 1980-12-30 |
| 4224735 | Method of production multifilamentary intermetallic superconductors | William G. Marancik | 1980-09-30 |
| 4205119 | Wrapped tantalum diffusion barrier | David C. Larbalestier | 1980-05-27 |