Microlithographic projection illumination with tangential polarisation
Summary by NHIP
Tangential Polarization Illumination
The method increases contrast in high-aperture microlithographic exposure by polarizing light perpendicular to the plane of incidence on the resist. Arrangements influence tangential or linear polarization adapted to dipole illumination within the illuminating system and reduction objective.
Abstract
A method and an arrangement for microlithographic projection exposure at high aperture achieve a contrast increase by the polarization of the light perpendicular to the plane of incidence on the resist. Arrangements are provided which influence the tangential polarization or the linear polarization adapted to the dipole illumination in the illuminating system and in the reduction objective.
Term
Term ended
Expired 5 March 2021, 5.6 years ago.
- Priority
- Filed
- Granted
- Expired
- Today
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US2008189381A1 | Cited by | United States of America | Pre-grant |
| EP0764858A2 | Cites | European Patent Office (EPO) | Applicant |
| EP0764858A2 | Cites | European Patent Office (EPO) | Search report |
| DE19954727A | Cites | Germany | Applicant |
| US2001022687A1 | Cites | United States of America | Applicant |
| US4755027A | Cites | United States of America | Applicant |
| US5365371A | Cites | United States of America | Applicant |
| US5436761A | Cites | United States of America | Applicant |
| US5559583A | Cites | United States of America | Search report |
| US5673103A | Cites | United States of America | Applicant |
| US5675401A | Cites | United States of America | Applicant |
| US5677755A | Cites | United States of America | Search report |
| US5691802A | Cites | United States of America | Applicant |
| US5715084A | Cites | United States of America | Applicant |
| US6169627B1 | Cites | United States of America | Applicant |
| US6191880B1 | Cites | United States of America | Applicant |
| US6229647B1 | Cites | United States of America | Applicant |
| US6295122B1 | Cites | United States of America | Search report |
| US6392800B2 | Cites | United States of America | Search report |
| US6452662B2 | Cites | United States of America | Search report |
15 members in 6 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 10010131 | Germany | A | |
| 10010131 | – | – | – |
| DE2000110131 | – | – | – |
Members15
| Document | Office | Kind | |
|---|---|---|---|
| EP1130470A2 | European Patent Office (EPO) | A2 | |
| DE10010131A1 | Germany | A1 | |
| US2001019404A1 | United States of America | A1 | |
| KR20010087261A | Republic of Korea | A | |
| JP2001274083A | Japan | A | |
| EP1130470A3 | European Patent Office (EPO) | A3 | |
| US6822729B2This record | United States of America | B2 | |
| TWI230323B | Taiwan Province of China | B | |
| US2005083506A1 | United States of America | A1 | |
| US2005083507A1 | United States of America | A1 | |
| US6930758B2 | United States of America | B2 | |
| US6950174B2 | United States of America | B2 | |
| US6972831B2 | United States of America | B2 | |
| US2006023193A1 | United States of America | A1 | |
| US7113260B2 | United States of America | B2 |
10 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Lapsed due to failure to pay maintenance feeLapsedFP | FP | |
| Lapse for failure to pay maintenance feesLapsedPATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.)LAPS | LAPS | |
| Information on status: patent discontinuationPATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362STCH | STCH | |
| Maintenance fee reminder mailedREMI | REMI | |
| Fee paymentFPAY | FPAY | |
| Fee paymentFPAY | FPAY | |
| Certificate of correctionCC | CC | |
| AssignmentAS | AS | |
| Erratum"ALL REFERENCE TO PATENT NO. 6822729 TO KARL-HEINZ SCHUSTER, ET AL OF GERMANY, FOR PROJECTION EXPOSURE SYSTEM FOR MICROLITHOGRAPHY AND METHOD FOR GENERATING MICROLITHOGRAPHIC IMAGES APPEARING IN THE OFFICIAL GAZETTE OF 20041123 SHOULD BE DELETED SINCE NO PATENT WAS GRANTED."ERR | ERR | |
| AssignmentAS | AS |
Numbers
- Publication, DOCDB
- 6822729
- Publication, EPODOC
- US6822729
- Application
- 9797961
- Application, DOCDB
- 79796101
- Application, EPODOC
- US20010797961
Titles
- English
- Projection exposure system for microlithography and method for generating microlithographic images
Classification
- CPC, 8
- G02B17/0892
- G02B5/30
- G02B17/08
- G02B27/28
- G03B27/72
- G03F7/70125
- G03F7/70225
- G03F7/70566
- IPC, 7
- G02B19 00
- G02B5 30
- G02B17 08
- G02B27 28
- G03F7 20
- G03F9 00
- H01L21 027