JPH09508721A - 軸外照明を用いたリソグラフィックパターンニング用マスク - Google Patents
軸外照明を用いたリソグラフィックパターンニング用マスクInfo
- Publication number
- JPH09508721A JPH09508721A JP7521370A JP52137095A JPH09508721A JP H09508721 A JPH09508721 A JP H09508721A JP 7521370 A JP7521370 A JP 7521370A JP 52137095 A JP52137095 A JP 52137095A JP H09508721 A JPH09508721 A JP H09508721A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- mask
- width
- dof
- isolated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/36—Masks having proximity correction features; Preparation thereof, e.g. optical proximity correction [OPC] design processes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70058—Mask illumination systems
- G03F7/70125—Use of illumination settings tailored to particular mask patterns
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70425—Imaging strategies, e.g. for increasing throughput or resolution, printing product fields larger than the image field or compensating lithography- or non-lithography errors, e.g. proximity correction, mix-and-match, stitching or double patterning
- G03F7/70433—Layout for increasing efficiency or for compensating imaging errors, e.g. layout of exposure fields for reducing focus errors; Use of mask features for increasing efficiency or for compensating imaging errors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 集積回路に対応するリソグラフィックパターンの光学的転写をマ スクから半導体基板上に行う装置であって、前記パターンは、前記パターン中の 他エッジから相対的に孤立した少なくとも1つのエッジを備える第1のタイプの 形状と、前記パターン中の前記他エッジに相対的に近接する全エッジを備える第 2のタイプの形状とを含み、 前記装置は軸外照明を用い、 前記軸外照明は、前記第2のタイプの形状の焦点深度範囲を前記第1のタイプ の形状の焦点深度範囲より大きくさせ、 改良されたマスクは、複数の追加の線を備え、 前記複数の追加の線の各々は、前記孤立エッジから所定距離に対応して前記マ スク上に配置され、 前記第1のタイプの形状の焦点深度範囲を前記第2のタイプの形状の焦点深度 範囲に近づけるために、前記第1のタイプの形状の焦点深度範囲を増やすように 前記追加の線の幅が選択されることを特徴とする。 2. 前記複数の追加の線は、前記基板上に転写されないように十分に 狭い幅を有することを特徴とする請求項1の改良。 3. 前記第1と第2のタイプの形状はある最小寸法を有し、前記追加 の線の幅は、前記ある最小寸法の約30%-50%であることを特徴とする請求 項2の改良。 4. 前記所定距離は、前記ある最小寸法の約90%であることを特徴 とする請求項3の改良。 5. 前記軸外照明は、クワドラポール型照明であることを特徴とする 請求項4の改良。 6. 前記軸外照明は、環状型照明であることを特徴とする請求項4の 改良。 7. 集積回路に対応するパターンをマスクから半導体基板上に転写す るための軸外型照明を用いるリソグラフィック装置であって、 前記孤立形状と前記マスク上に密に詰め込まれた形状間での近接効果を減らす ために、前記マスクは孤立形状の孤立エッジに隣接する追加の線を含み、 軸外型照明を用いたリソグラフィック装置のための前記マスクを、DOF差と 前記孤立形状と前記密に詰め込まれた形状間の前記近接効果を減らすために、最 適化する方法は、 前記孤立エッジのエッジ勾配が前記密に詰め込まれた形状のエッジ勾配にかな りマッチするように、前記追加の線を前記孤立エッジからある距離をおいて配置 し、 前記孤立形状のDOF範囲が前記密に詰め込まれた形状のDOF範囲に近くな るように、前記追加の線の幅を調整することを特徴とする。 8. 前記幅は、前記基板上に転写されないように十分狭いことを特徴 とする請求項7の改良。 9. 前記孤立形状と前記密に詰め込まれた形状は、ある最小寸法を備 え、前記追加の線の幅は、前記ある最小寸法の約30%-50%であることを特 徴とする請求項8の改良。 10. 前記所定距離は、前記ある最小寸法の約90%であることを特 徴とする請求項9の改良。 11. 前記軸外照明は、クワドラポール型照明であることを特徴とす る請求項10の改良。 12. 前記軸外照明は、環状型照明であることを特徴とする請求項1 0の改良。 13. 集積回路に対応するリソグラフィックパターンの光学的転写を マスクから半導体基板上に行う装置であって、前記装置はクワドラポール型照明 を用い、前記パターンは少なくとも1つの形状を有し、改良されたマスクは、 前記少なくとも1つの形状に隣接して囲む追加の形状を備え、 前記追加の形状は、前記少なくとも1つの形状の全エッジから所定距離に配置 され、前記少なくとも1つの形状と同じ透明性を有し、 前記追加の線の幅は、前記少なくとも1つの形状の焦点深度を増やすように選 択されることを特徴とする。 14. 前記幅は、前記基板上に転写されないように十分狭いことを特 徴とする請求項13の改良。 15. 前記幅は、前記装置の軸外照明解像限界の1/3におおよそ等 しいことを特徴とする請求項14の改良。 16. 前記少なくとも1つの形状はある最小寸法を有し、前記所定距 離は、前記最小寸法の約90%であることを特徴とする請求項14の改良。 17. 集積回路に対応するリソグラフィックパターンをマスクから半 導体基板上に転写するための用いられる装置であって、前記装置はクワドラポー ル型照明を用い、前記パターンは第1の形状型と第2の形状型を含み、 前記第1の形状型と第2の形状型の各々は、関連するDOF範囲を有し、 前記第1の形状型のDOF範囲は前記第2の形状型のDOF範囲より大きく、 改良されたマスクは、 追加の形状は、前記第2の形状の全エッジから所定距離をおいて、前記マスク 上の前記第2の形状に隣接して囲むように配置され、 前記追加の形状は、前記第2の形状と同じ透明性を有し、 前記第2の形状のDOFを前記第1の形状のDOFに近づけるために、前記第 2の形状のDOFを増やすように前記追加の形状の寸法が選択されることを特徴 とする。 18. 前記追加の形状は、前記基板上に転写されないように十分狭い 幅を備えることを特徴とする請求項17の改良。 19. 前記幅は、前記装置の軸外照明解像限界の1/3におおよそ等 しいことを特徴とする請求項18の改良。 20. 前記第1と第2の型の形状はある最小寸法を有し、前記所定距 離は、前記最小寸法の約90%であることを特徴とする請求項19の改良。 21. 前記第1の形状型は、前記第2の形状型よりも相対的に大きい ことを特徴とする請求項20の改良。 22. 前記第1の形状型は引き延ばされたコンタクト形状であり、前 記第2の形状型は正方形コンタクト形状であることを特徴とする請求項21の改 良。 23. 集積回路に対応するリソグラフィックパターンをマスクから半 導体基板上に光学的に転写するために用いられる装置であって、 前記装置はクワドラポール型照明を用い、前記パターンは第1の形状型と第2の 形状型を含み、 前記第1の形状型と第2の形状型の各々は、関連する強度レベルとDOFを有 し、 前記第1の形状型の強度レベルとDOFは、前記第2の形状型の強度レベルと DOFより大きく、 前記第2の形状型に対する強度とDOF範囲を増加させる方法は、 前記追加の形状を前記マスク上に供給し、 前記形状は、前記第2の形状型に隣接して囲んで配置され、前記第1と第2の 形状型と同じ透明性を有し、 前記形状を前記第2の形状型からある距離おいて配置し、前記距離が、前記第 2の形状型の強度レベルを前記第1の形状型の強度レベルにかなりマッチさせる ようにし、 前記追加の形状の幅を調整して、前記幅によって、前記第2の形状のDOF範 囲が前記第1の形状のDOF範囲に近くなるようにさせることを特徴とする。 24. 前記追加の形状は、前記基板上に転写されないように十分狭い 幅を備えることを特徴とする請求項23の改良。 25. 前記幅は、前記装置の軸上照明解像限界の1/3におおよそ等 しいことを特徴とする請求項24の改良。 26. 前記第1と第2の型の形状型はある最小寸法を有し、前記所定 距離は、前記最小寸法の約90%であることを特徴とする請求項25の改良。 27. 前記第1の形状型は、前記第2の形状型よりも大きいことを特 徴とする請求項26の改良。 28. 前記第1の形状型は引き延ばされたコンタクト形状であり、前 記第2の形状型は正方形コンタクト形状であることを特徴とする請求項27の改 良。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/194,097 | 1994-02-09 | ||
US08/194,097 US5447810A (en) | 1994-02-09 | 1994-02-09 | Masks for improved lithographic patterning for off-axis illumination lithography |
US194,097 | 1994-02-09 | ||
PCT/US1995/001735 WO1995022085A1 (en) | 1994-02-09 | 1995-02-09 | Masks for lithographic patterning using off-axis illumination |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09508721A true JPH09508721A (ja) | 1997-09-02 |
JP3009925B2 JP3009925B2 (ja) | 2000-02-14 |
Family
ID=22716289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7521370A Expired - Fee Related JP3009925B2 (ja) | 1994-02-09 | 1995-02-09 | 軸外照明を用いたリソグラフィックパターンニング用マスク |
Country Status (9)
Country | Link |
---|---|
US (1) | US5447810A (ja) |
EP (2) | EP1102125B1 (ja) |
JP (1) | JP3009925B2 (ja) |
KR (1) | KR100243986B1 (ja) |
CN (1) | CN1080896C (ja) |
AU (1) | AU1746795A (ja) |
DE (2) | DE69530578T2 (ja) |
TW (1) | TW355810B (ja) |
WO (1) | WO1995022085A1 (ja) |
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1994
- 1994-02-09 US US08/194,097 patent/US5447810A/en not_active Expired - Lifetime
-
1995
- 1995-02-09 EP EP01101842A patent/EP1102125B1/en not_active Expired - Lifetime
- 1995-02-09 JP JP7521370A patent/JP3009925B2/ja not_active Expired - Fee Related
- 1995-02-09 DE DE69530578T patent/DE69530578T2/de not_active Expired - Lifetime
- 1995-02-09 KR KR1019960704317A patent/KR100243986B1/ko not_active IP Right Cessation
- 1995-02-09 EP EP95909535A patent/EP0744044B1/en not_active Expired - Lifetime
- 1995-02-09 AU AU17467/95A patent/AU1746795A/en not_active Abandoned
- 1995-02-09 CN CN95191552A patent/CN1080896C/zh not_active Expired - Lifetime
- 1995-02-09 WO PCT/US1995/001735 patent/WO1995022085A1/en active IP Right Grant
- 1995-02-09 DE DE69535381T patent/DE69535381T2/de not_active Expired - Lifetime
- 1995-07-20 TW TW084107534A patent/TW355810B/zh not_active IP Right Cessation
Cited By (2)
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US7107573B2 (en) | 2002-04-23 | 2006-09-12 | Canon Kabushiki Kaisha | Method for setting mask pattern and illumination condition |
US7691543B2 (en) | 2005-05-02 | 2010-04-06 | Elpida Memory, Inc. | Mask data creation method |
Also Published As
Publication number | Publication date |
---|---|
AU1746795A (en) | 1995-08-29 |
CN1080896C (zh) | 2002-03-13 |
EP1102125A1 (en) | 2001-05-23 |
DE69530578D1 (de) | 2003-06-05 |
US5447810A (en) | 1995-09-05 |
CN1140493A (zh) | 1997-01-15 |
KR100243986B1 (ko) | 2000-03-02 |
EP0744044A1 (en) | 1996-11-27 |
DE69535381D1 (de) | 2007-03-22 |
JP3009925B2 (ja) | 2000-02-14 |
DE69530578T2 (de) | 2004-04-08 |
DE69535381T2 (de) | 2007-11-15 |
WO1995022085A1 (en) | 1995-08-17 |
EP1102125B1 (en) | 2007-01-31 |
TW355810B (en) | 1999-04-11 |
EP0744044B1 (en) | 2003-05-02 |
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