Issued Patents All Time
Showing 76–96 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904587 | Incremental lithography mask layout design and verification | Chi-Ming Tsai, Chin-Hsen Lin | 2005-06-07 |
| 6901575 | Resolving phase-shift conflicts in layouts using weighted links between phase shifters | Shao-Po Wu, Seonghun Cho | 2005-05-31 |
| 6818385 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2004-11-16 |
| 6795168 | Method and apparatus for exposing a wafer using multiple masks during an integrated circuit manufacturing process | Christophe Pierrat, Fang-Cheng Chang | 2004-09-21 |
| 6757645 | Visual inspection and verification system | Fang-Cheng Chang, Yagyensh C. Pati, Linard Karklin | 2004-06-29 |
| 6721928 | Verification utilizing instance-based hierarchy management | Christophe Pierrat, Chin-Hsen Lin, Fang-Cheng Chang | 2004-04-13 |
| 6622288 | Conflict sensitive compaction for resolving phase-shift conflicts in layouts for phase-shifted features | Kent Richardson, Shao-Po Wu, Christophe Pierrat, Michael Sanie | 2003-09-16 |
| 6584609 | Method and apparatus for mixed-mode optical proximity correction | Christophe Pierrat, You-Ping Zhang, Fang-Cheng Chang, Hoyong Park | 2003-06-24 |
| 6584610 | Incrementally resolved phase-shift conflicts in layouts for phase-shifted features | Shao-Po Wu | 2003-06-24 |
| 6566023 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2003-05-20 |
| 6560766 | Method and apparatus for analyzing a layout using an instance-based representation | Christophe Pierrat, Chin-Hsen Lin, Fang-Cheng Chang | 2003-05-06 |
| 6523162 | General purpose shape-based layout processing scheme for IC layout modifications | Deepak Agrawal, Fang-Cheng Chang, Hyungjip Kim, Myunghoon Yoon | 2003-02-18 |
| 6470489 | Design rule checking system and method | Fang-Cheng Chang, Yagyensh C. Pati | 2002-10-22 |
| 6453452 | Method and apparatus for data hierarchy maintenance in a system for mask description | Fang-Cheng Chang, Yagyensh C. Pati | 2002-09-17 |
| 6436590 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2002-08-20 |
| 6420074 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2002-07-16 |
| 6370679 | Data hierarchy layout correction and verification method and apparatus | Fang-Cheng Chang, Yagyensh C. Pati | 2002-04-09 |
| 6258493 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2001-07-10 |
| 6228539 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 2001-05-08 |
| 5858580 | Phase shifting circuit manufacture method and apparatus | Yagyensh C. Pati | 1999-01-12 |
| 5222080 | Method and apparatus for signal reconstruction | V. Ramamoorthy | 1993-06-22 |