Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6171165 | Precision alignment of microcolumn tip to a micron-size extractor aperture | Kim Y. Lee, T. H. Philip Chang | 2001-01-09 |
| 6077417 | Silicon microlens cleaning system | Kim Y. Lee, T. H. Philip Chang | 2000-06-20 |
| 6023060 | T-shaped electron-beam microcolumn as a general purpose scanning electron microscope | Tai-Hon Philip Chang | 2000-02-08 |