JP2006194898A - 光学的テストヘッドの漂遊光を減少又は排除する方法及び装置 - Google Patents

光学的テストヘッドの漂遊光を減少又は排除する方法及び装置 Download PDF

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Publication number
JP2006194898A
JP2006194898A JP2006033040A JP2006033040A JP2006194898A JP 2006194898 A JP2006194898 A JP 2006194898A JP 2006033040 A JP2006033040 A JP 2006033040A JP 2006033040 A JP2006033040 A JP 2006033040A JP 2006194898 A JP2006194898 A JP 2006194898A
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Japan
Prior art keywords
light
workpiece
detector
platter
lens
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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.)
Pending
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JP2006033040A
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English (en)
Japanese (ja)
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JP2006194898A5 (enExample
Inventor
David Treves
トリーヴス ディヴィッド
Thomas O'dell
オーデル トーマス
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WD Media LLC
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Komag Inc
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Application filed by Komag Inc filed Critical Komag Inc
Publication of JP2006194898A publication Critical patent/JP2006194898A/ja
Publication of JP2006194898A5 publication Critical patent/JP2006194898A5/ja
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55Specular reflectivity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47Scattering, i.e. diffuse reflection
    • G01N2021/473Compensating for unwanted scatter, e.g. reliefs, marks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/9501Semiconductor wafers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/9506Optical discs

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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Optical Head (AREA)
JP2006033040A 2005-01-13 2006-01-13 光学的テストヘッドの漂遊光を減少又は排除する方法及び装置 Pending JP2006194898A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64374805P 2005-01-13 2005-01-13
US11/112,044 US7375362B2 (en) 2005-01-13 2005-04-22 Method and apparatus for reducing or eliminating stray light in an optical test head

Publications (2)

Publication Number Publication Date
JP2006194898A true JP2006194898A (ja) 2006-07-27
JP2006194898A5 JP2006194898A5 (enExample) 2009-04-23

Family

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JP2006033040A Pending JP2006194898A (ja) 2005-01-13 2006-01-13 光学的テストヘッドの漂遊光を減少又は排除する方法及び装置

Country Status (3)

Country Link
US (1) US7375362B2 (enExample)
JP (1) JP2006194898A (enExample)
MY (1) MY145528A (enExample)

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JP2010257567A (ja) 2009-03-30 2010-11-11 Wd Media Singapore Pte Ltd 垂直磁気記録媒体およびその製造方法
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JP5574414B2 (ja) 2010-03-29 2014-08-20 ダブリュディ・メディア・シンガポール・プライベートリミテッド 磁気ディスクの評価方法及び磁気ディスクの製造方法
JP5634749B2 (ja) 2010-05-21 2014-12-03 ダブリュディ・メディア・シンガポール・プライベートリミテッド 垂直磁気ディスク
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JP2011248969A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 垂直磁気ディスク
JP2011248967A (ja) 2010-05-28 2011-12-08 Wd Media (Singapore) Pte. Ltd 垂直磁気ディスクの製造方法
JP2012009086A (ja) 2010-06-22 2012-01-12 Wd Media (Singapore) Pte. Ltd 垂直磁気記録媒体及びその製造方法
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Publication number Publication date
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MY145528A (en) 2012-02-29
US20060151726A1 (en) 2006-07-13

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