Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8685840 | In-situ gettering method for removing metal impurities from the surface and interior of a upgraded metallurgical grade silicon wafer | Tsun-Neng Yang, Chin-Chen Chiang | 2014-04-01 |