Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338361 | Apparatus with a check function for controlling a flow resistance of a photoresist solution | Ying-Ming Cheng, Li-Chung Lee, Chia-Wen Cheng | 2002-01-15 |
| 6176770 | Grindstone having a vacuum system in a pin chuck stepper | Patrick Cheng, Li-Chung Lee, Mei-Ling Chen | 2001-01-23 |