WO2009104871A2 - 암시야 검사장치 - Google Patents
암시야 검사장치 Download PDFInfo
- Publication number
- WO2009104871A2 WO2009104871A2 PCT/KR2009/000249 KR2009000249W WO2009104871A2 WO 2009104871 A2 WO2009104871 A2 WO 2009104871A2 KR 2009000249 W KR2009000249 W KR 2009000249W WO 2009104871 A2 WO2009104871 A2 WO 2009104871A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- unit
- reflecting
- base
- inspected object
- Prior art date
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Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8822—Dark field detection
-
- 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
- G01N2021/9513—Liquid crystal panels
Definitions
- FIG. 1 is a schematic diagram of an example of a conventional dark field inspection apparatus.
- the imaging unit 120 receives light scattered by the inspected object 2 to capture an image of the inspected object 2.
- a line camera or an area camera is generally used as the imaging unit 120, and various image capturing means used in the dark field inspection apparatus may be used.
- the light received by the imaging unit 120 is irradiated from the illumination unit 110 and scattered by the inspected object 2 to travel along the first path LA1 toward the imaging unit 120 (L110 and L111).
- the reflection part 140 which will be described later, travels along the second path LA2 toward the test subject 2, is scattered by the test subject 2, and is captured along the first path LA1.
- the image processing unit 130 analyzes the image of the inspected object 2 picked up by the imaging unit 120 to determine whether or not the inspected object 2 is acceptable in determining the amount of good or poor. What kind of defect is it?
- the condenser 150 collects light incident on the reflector 140 or light emitted from the reflector 140, and collects the second path LA2 with respect to the direction incident on the reflector 140. Therefore, it is disposed in front of the reflector 140.
- a condenser lens or the like used to concentrate light in a desired direction and place is generally used.
- Light incident on the reflecting unit 140 by the light collecting unit 150 may be concentrated in the surface of the reflecting unit 140, and the light emitted from the reflecting unit 140 may also be concentrated near the inspected object 2. Can be.
- it is possible to add a structure to control and use the polarization of the reflected light the phenomenon of polarizing the reflected light can be well explained by the theory of Brewster's Law.
- the dark field inspection apparatus 100 of the present embodiment is characterized in that the illumination unit 110 and the reflector 140 are disposed on the same side with respect to the base 1.
- the inspected object 2 is provided on one surface 1a of the base 1, and the lighting unit 110 and the reflector 140 are disposed in a space spaced apart from the one surface 1a of the base 1. Therefore, some of the light irradiated from the lighting unit 110 is reflected by the inspected object 2 to be incident on the reflecting unit 140 (L110, L112), and the other portion of the light irradiated from the lighting unit 110 is the base It is reflected by (1) and may be incident on the reflector 140 (L120, L122).
- the inspected object can be imaged using the light scattered in the entire area of the inspected object. The effect of improving the performance and efficiency of carcasses can be obtained.
- the dark field inspection apparatus 300 also collects light scattered or reflected outside the imaging unit and reuses the image to be inspected by the illuminator 310 and the imaging unit 320. ), An image processor 330, a reflector 340, and a light condenser 350.
- each of the lighting unit 310, the imaging unit 320, the image processing unit 330, the reflecting unit 340, and the light converging unit 350 is a dark field inspection apparatus according to the first embodiment of the present invention. Having the same configuration and function as the lighting unit 110, the imaging unit 120, the image processing unit 130, the reflecting unit 140, and the light collecting unit 150 described under the same name, a detailed description of each of them is omitted. Let's do it.
- the dark field inspection apparatus configured as described above includes a pair of reflecting mirrors, and thus, it is not necessary to match the light path incident on the reflecting portion with the light path reflecting by the reflecting portion, thus varying the configuration of the apparatus. It is possible to increase the compatibility to meet various cases and to achieve various effects.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Microscoopes, Condenser (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
Claims (7)
- 베이스 상의 피검사체 측으로 광을 조사하는 조명부;상기 피검사체에 의해 반사되어 입사되는 광 또는 상기 베이스를 투과하여 입사되는 광을 상기 피검사체 측으로 다시 반사하는 반사부; 및상기 피검사체에 의해 산란된 광을 수광하여 상기 피검사체를 촬상하는 촬상부;를 포함하며,상기 조명부로부터 조사된 광 중 일부는 상기 피검사체에 의해 산란되어 상기 촬상부에 입사되고, 상기 조명부로부터 조사된 광 중 다른 일부는 상기 반사부에 입사되며, 상기 반사부에 의해 상기 피검사체 측으로 다시 반사된 광은 상기 피검사체에 의해 산란되어 상기 촬상부에 입사되도록, 상기 조명부, 상기 반사부 및 상기 촬상부가 배치되는 것을 특징으로 하는 암시야 검사장치.
- 제1항에 있어서,상기 피검사체는 상기 베이스의 일면에 마련되고, 상기 조명부 및 상기 반사부는 상기 베이스의 일면으로부터 이격된 공간에 배치되어,상기 반사부에 입사되는 광은, 상기 피검사체에 의해 반사되는 광 또는 상기 베이스에 의해 반사되는 광을 포함하는 것을 특징으로 하는 암시야 검사장치.
- 제2항에 있어서,상기 조명부의 중심부와 상기 반사부의 중심부를 연결하는 광축이 상기 베이스와 실질적으로 평행하도록, 상기 조명부 및 상기 반사부가 배치되는 것을 특징으로 하는 암시야 검사장치.
- 제2항에 있어서,상기 반사부는,상기 피검사체 또는 상기 베이스에 의해 반사되어 입사되는 광을 반사시키는 제1반사미러와, 상기 제1반사미러에 의해 반사되어 입사되는 광을 상기 피검사체 측으로 다시 반사하는 제2반사미러를 포함하고,상기 피검사체 및 제1반사미러 간의 광경로와 상기 제2반사미러 및 피검사체 간의 광경로는 서로 일치하지 않는 것을 특징으로 하는 암시야 검사장치.
- 제1항에 있어서,상기 피검사체는 상기 베이스의 일면에 마련되고, 상기 조명부는 상기 베이스의 일면의 반대면인 타면으로부터 이격된 공간에 배치되고, 상기 반사부는 상기 베이스의 일면으로부터 이격된 공간에 배치되어,상기 반사부에 입사되는 광은, 상기 피검사체에 의해 반사되는 광 또는 상기 베이스를 투과하는 광을 포함하는 것을 특징으로 하는 암시야 검사장치.
- 제1항에 있어서,상기 조명부는 레이저 광원, 발광 다이오드(LED) 광원 및 할로겐 램프 중 어느 하나를 포함하는 것을 특징으로 하는 암시야 검사장치.
- 제1항에 있어서,상기 반사부에 입사되는 방향에 대하여 상기 반사부의 전방에 배치되며, 상기 반사부에 입사되는 광 또는 상기 반사부로부터 출사되는 광을 집광하는 집광부를 더 포함하는 것을 특징으로 하는 암시야 검사장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980100216A CN101836153A (zh) | 2008-02-19 | 2009-01-16 | 暗场检测装置 |
JP2010522831A JP4956725B2 (ja) | 2008-02-19 | 2009-01-16 | 暗視野検査装置 |
US12/673,525 US8223326B2 (en) | 2008-02-19 | 2009-01-16 | Dark-field examination device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080014859A KR100913484B1 (ko) | 2008-02-19 | 2008-02-19 | 암시야 검사장치 |
KR10-2008-0014859 | 2008-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009104871A2 true WO2009104871A2 (ko) | 2009-08-27 |
WO2009104871A3 WO2009104871A3 (ko) | 2009-10-22 |
Family
ID=40986023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/000249 WO2009104871A2 (ko) | 2008-02-19 | 2009-01-16 | 암시야 검사장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8223326B2 (ko) |
JP (1) | JP4956725B2 (ko) |
KR (1) | KR100913484B1 (ko) |
CN (1) | CN101836153A (ko) |
TW (1) | TWI390200B (ko) |
WO (1) | WO2009104871A2 (ko) |
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JP2012073039A (ja) * | 2010-09-27 | 2012-04-12 | Nidec Sankyo Corp | パーティクル検出用光学装置およびパーティクル検出装置 |
JP2012073040A (ja) * | 2010-09-27 | 2012-04-12 | Nidec Sankyo Corp | パーティクル検出用光学装置およびパーティクル検出装置 |
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KR101685703B1 (ko) * | 2010-02-25 | 2016-12-12 | 가부시끼가이샤 야마나시 기쥬쯔 고오보오 | 이물질 검사 장치 및 검사 방법 |
JP2012163533A (ja) * | 2011-02-09 | 2012-08-30 | Fujifilm Corp | レンチキュラシートの欠陥検査装置及び方法 |
KR101955238B1 (ko) * | 2011-05-30 | 2019-03-08 | 라이온 가부시키가이샤 | 조명 시스템, 검사 시스템 및 제어 시스템 |
JP5414743B2 (ja) * | 2011-06-07 | 2014-02-12 | スミックス株式会社 | マクロ検査装置 |
US20130245985A1 (en) * | 2012-03-14 | 2013-09-19 | Kla-Tencor Corporation | Calibration Of An Optical Metrology System For Critical Dimension Application Matching |
CA2872898A1 (en) | 2012-05-09 | 2013-11-14 | Seagate Technology Llc | Surface features mapping |
US9212900B2 (en) | 2012-08-11 | 2015-12-15 | Seagate Technology Llc | Surface features characterization |
US9297751B2 (en) | 2012-10-05 | 2016-03-29 | Seagate Technology Llc | Chemical characterization of surface features |
US9297759B2 (en) | 2012-10-05 | 2016-03-29 | Seagate Technology Llc | Classification of surface features using fluorescence |
US9377394B2 (en) | 2012-10-16 | 2016-06-28 | Seagate Technology Llc | Distinguishing foreign surface features from native surface features |
US9217714B2 (en) * | 2012-12-06 | 2015-12-22 | Seagate Technology Llc | Reflective surfaces for surface features of an article |
US9513215B2 (en) | 2013-05-30 | 2016-12-06 | Seagate Technology Llc | Surface features by azimuthal angle |
US9201019B2 (en) | 2013-05-30 | 2015-12-01 | Seagate Technology Llc | Article edge inspection |
US9217715B2 (en) | 2013-05-30 | 2015-12-22 | Seagate Technology Llc | Apparatuses and methods for magnetic features of articles |
US9274064B2 (en) | 2013-05-30 | 2016-03-01 | Seagate Technology Llc | Surface feature manager |
CN103353459A (zh) * | 2013-06-18 | 2013-10-16 | 深圳市华星光电技术有限公司 | 一种检测装置及检测方法 |
KR20160004099A (ko) * | 2014-07-02 | 2016-01-12 | 한화테크윈 주식회사 | 결함 검사 장치 |
CN105372256B (zh) * | 2014-08-20 | 2019-01-18 | 上海微电子装备(集团)股份有限公司 | 表面检测系统及方法 |
JP2016125968A (ja) * | 2015-01-07 | 2016-07-11 | 旭硝子株式会社 | 検査装置および検査方法 |
KR102374381B1 (ko) * | 2020-08-21 | 2022-03-14 | 최종명 | 실린더 라이트 교체가 용이한 솔더링 검사장치 |
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2008
- 2008-02-19 KR KR1020080014859A patent/KR100913484B1/ko active IP Right Grant
-
2009
- 2009-01-15 TW TW098101364A patent/TWI390200B/zh not_active IP Right Cessation
- 2009-01-16 JP JP2010522831A patent/JP4956725B2/ja not_active Expired - Fee Related
- 2009-01-16 WO PCT/KR2009/000249 patent/WO2009104871A2/ko active Application Filing
- 2009-01-16 CN CN200980100216A patent/CN101836153A/zh active Pending
- 2009-01-16 US US12/673,525 patent/US8223326B2/en not_active Expired - Fee Related
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KR940026536A (ko) * | 1993-05-31 | 1994-12-09 | ||
KR20030081579A (ko) * | 2002-04-12 | 2003-10-22 | 주식회사 유브이티 | 피검사체의 표면 검사장치 |
KR20070084560A (ko) * | 2004-10-28 | 2007-08-24 | 코닝 인코포레이티드 | 유리 시트의 표면 및 바디 결함을 식별하기 위한 검사시스템 및 방법 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012073039A (ja) * | 2010-09-27 | 2012-04-12 | Nidec Sankyo Corp | パーティクル検出用光学装置およびパーティクル検出装置 |
JP2012073040A (ja) * | 2010-09-27 | 2012-04-12 | Nidec Sankyo Corp | パーティクル検出用光学装置およびパーティクル検出装置 |
Also Published As
Publication number | Publication date |
---|---|
US20110043794A1 (en) | 2011-02-24 |
US8223326B2 (en) | 2012-07-17 |
KR20090089603A (ko) | 2009-08-24 |
CN101836153A (zh) | 2010-09-15 |
TW200937007A (en) | 2009-09-01 |
KR100913484B1 (ko) | 2009-08-25 |
WO2009104871A3 (ko) | 2009-10-22 |
JP4956725B2 (ja) | 2012-06-20 |
JP2010537219A (ja) | 2010-12-02 |
TWI390200B (zh) | 2013-03-21 |
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