Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189546 | Polishing process for manufacturing dopant-striation-free polished silicon wafers | David Zhang, Henry F. Erk | 2001-02-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189546 | Polishing process for manufacturing dopant-striation-free polished silicon wafers | David Zhang, Henry F. Erk | 2001-02-20 |