Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7344995 | Method for preparing a structure with high aspect ratio | Hong-Long Chang, Yung Kai Lee, Chih-Hao Chang | 2008-03-18 |
| 6399509 | Defects reduction for a metal etcher | Ray C. Lee, Hong-Long Chang | 2002-06-04 |