Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8296688 | Evaluating the quality of an assist feature placement based on a focus-sensitive cost-covariance field | Benjamin D. Painter, Qiliang Yan, Yongfa Fan, Jianliang Li, Amyn A. Poonawala | 2012-10-23 |
| 8010913 | Model-based assist feature placement using inverse imaging approach | Amyn A. Poonawala, Benjamin D. Painter | 2011-08-30 |
| 7979812 | Method and apparatus for correcting assist-feature-printing errors in a layout | Sunggon Jung, Xiaohai Li, Robert M. Lugg, Sooryong Lee | 2011-07-12 |
| 7954071 | Assist feature placement based on a focus-sensitive cost-covariance field | Benjamin D. Painter, Qiliang Yan, Yongfa Fan, Jianliang Li, Amyn A. Poonawala | 2011-05-31 |
| 7721246 | Method and apparatus for quickly determining the effect of placing an assist feature at a location in a layout | Jianliang Li, Qiliang Yan, Lawrence S. Melvin, III, Abani M. Biswas | 2010-05-18 |
| 7421678 | Assist feature placement using a process-sensitivity model | Lawrence S. Melvin, III, Benjamin D. Painter | 2008-09-02 |