JPH0546937B2 - - Google Patents
Info
- Publication number
- JPH0546937B2 JPH0546937B2 JP59261008A JP26100884A JPH0546937B2 JP H0546937 B2 JPH0546937 B2 JP H0546937B2 JP 59261008 A JP59261008 A JP 59261008A JP 26100884 A JP26100884 A JP 26100884A JP H0546937 B2 JPH0546937 B2 JP H0546937B2
- Authority
- JP
- Japan
- Prior art keywords
- mask
- orientation
- detecting
- defect detection
- defects
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
- G03F1/82—Auxiliary processes, e.g. cleaning or inspecting
- G03F1/84—Inspecting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95623—Inspecting patterns on the surface of objects using a spatial filtering method
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US560679 | 1983-12-12 | ||
| US06/560,679 US4588293A (en) | 1983-12-12 | 1983-12-12 | Method and apparatus for inspecting photomasks to detect defects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60144648A JPS60144648A (ja) | 1985-07-31 |
| JPH0546937B2 true JPH0546937B2 (OSRAM) | 1993-07-15 |
Family
ID=24238862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59261008A Granted JPS60144648A (ja) | 1983-12-12 | 1984-12-12 | 欠陥を検出するためにマスクを検査する方法及び装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4588293A (OSRAM) |
| JP (1) | JPS60144648A (OSRAM) |
| DE (1) | DE3433024C2 (OSRAM) |
| GB (1) | GB2151352B (OSRAM) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159474A (en) | 1986-10-17 | 1992-10-27 | E. I. Du Pont De Nemours And Company | Transform optical processing system |
| US5078501A (en) * | 1986-10-17 | 1992-01-07 | E. I. Du Pont De Nemours And Company | Method and apparatus for optically evaluating the conformance of unknown objects to predetermined characteristics |
| DE3926199A1 (de) * | 1989-08-08 | 1991-02-14 | Siemens Ag | Vorrichtung zur fehlererkennung in komplexen, relativ regelmaessigen strukturen |
| US6727975B1 (en) * | 1999-06-14 | 2004-04-27 | Micron Technology, Inc. | Device and method of correcting exposure defects in photolithography |
| US7525659B2 (en) * | 2003-01-15 | 2009-04-28 | Negevtech Ltd. | System for detection of water defects |
| US7813541B2 (en) | 2005-02-28 | 2010-10-12 | Applied Materials South East Asia Pte. Ltd. | Method and apparatus for detecting defects in wafers |
| US7804993B2 (en) | 2005-02-28 | 2010-09-28 | Applied Materials South East Asia Pte. Ltd. | Method and apparatus for detecting defects in wafers including alignment of the wafer images so as to induce the same smear in all images |
| US8031931B2 (en) * | 2006-04-24 | 2011-10-04 | Applied Materials South East Asia Pte. Ltd. | Printed fourier filtering in optical inspection tools |
| US7659973B2 (en) * | 2006-05-26 | 2010-02-09 | Applied Materials Southeast Asia, Pte Ltd. | Wafer inspection using short-pulsed continuous broadband illumination |
| WO2021136631A1 (en) * | 2019-12-31 | 2021-07-08 | Asml Holding N.V. | Contaminant detection metrology system, lithographic apparatus, and methods thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658420A (en) * | 1969-12-10 | 1972-04-25 | Bell Telephone Labor Inc | Photomask inspection by spatial filtering |
| US3738752A (en) * | 1972-05-03 | 1973-06-12 | Western Electric Co | Intensity spatial filter having non-uniformly spaced filter elements |
| US3743423A (en) * | 1972-05-03 | 1973-07-03 | Westinghouse Electric Corp | Intensity spatial filter having uniformly spaced filter elements |
| JPS5419748A (en) * | 1977-07-13 | 1979-02-14 | Fujitsu Ltd | Photoconductive toners |
| US4377324A (en) * | 1980-08-04 | 1983-03-22 | Honeywell Inc. | Graded index Fabry-Perot optical filter device |
-
1983
- 1983-12-12 US US06/560,679 patent/US4588293A/en not_active Expired - Fee Related
-
1984
- 1984-09-03 GB GB08422206A patent/GB2151352B/en not_active Expired
- 1984-09-07 DE DE3433024A patent/DE3433024C2/de not_active Expired - Fee Related
- 1984-12-12 JP JP59261008A patent/JPS60144648A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2151352B (en) | 1987-07-08 |
| DE3433024A1 (de) | 1985-06-13 |
| JPS60144648A (ja) | 1985-07-31 |
| US4588293A (en) | 1986-05-13 |
| GB8422206D0 (en) | 1984-10-10 |
| GB2151352A (en) | 1985-07-17 |
| DE3433024C2 (de) | 1994-02-03 |
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