JPS6364738B2 - - Google Patents

Info

Publication number
JPS6364738B2
JPS6364738B2 JP1438781A JP1438781A JPS6364738B2 JP S6364738 B2 JPS6364738 B2 JP S6364738B2 JP 1438781 A JP1438781 A JP 1438781A JP 1438781 A JP1438781 A JP 1438781A JP S6364738 B2 JPS6364738 B2 JP S6364738B2
Authority
JP
Japan
Prior art keywords
light
inspected
photoelectric
signal
scattered light
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
Application number
JP1438781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57128834A (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1438781A priority Critical patent/JPS57128834A/ja
Priority to US06/343,552 priority patent/US4468120A/en
Publication of JPS57128834A publication Critical patent/JPS57128834A/ja
Publication of JPS6364738B2 publication Critical patent/JPS6364738B2/ja
Granted legal-status Critical Current

Links

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
    • G01N21/94—Investigating contamination, e.g. dust

Landscapes

  • 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)
  • General Physics & Mathematics (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)
JP1438781A 1981-02-04 1981-02-04 Inspecting apparatus of foreign substance Granted JPS57128834A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1438781A JPS57128834A (en) 1981-02-04 1981-02-04 Inspecting apparatus of foreign substance
US06/343,552 US4468120A (en) 1981-02-04 1982-01-28 Foreign substance inspecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1438781A JPS57128834A (en) 1981-02-04 1981-02-04 Inspecting apparatus of foreign substance

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP62249879A Division JPS63171346A (ja) 1987-10-05 1987-10-05 欠陥検査装置

Publications (2)

Publication Number Publication Date
JPS57128834A JPS57128834A (en) 1982-08-10
JPS6364738B2 true JPS6364738B2 (de) 1988-12-13

Family

ID=11859641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1438781A Granted JPS57128834A (en) 1981-02-04 1981-02-04 Inspecting apparatus of foreign substance

Country Status (1)

Country Link
JP (1) JPS57128834A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982727A (ja) * 1982-11-04 1984-05-12 Hitachi Ltd 異物検出方法及びその装置
JPH0621877B2 (ja) * 1986-02-14 1994-03-23 キヤノン株式会社 表面状態測定装置
JPH0621876B2 (ja) * 1986-02-14 1994-03-23 キヤノン株式会社 表面状態測定装置
JPH0629860B2 (ja) * 1986-07-28 1994-04-20 キヤノン株式会社 表面状態検査装置
JPS64452A (en) * 1988-06-03 1989-01-05 Hitachi Ltd Detection of foreign matter
JPH0715441B2 (ja) * 1989-11-27 1995-02-22 株式会社日立製作所 異物検出方法及びその装置
JPH0816651B2 (ja) * 1991-04-26 1996-02-21 株式会社日立製作所 両面異物検出方法及びその装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498292A (de) * 1972-05-10 1974-01-24
JPS4983470A (de) * 1972-11-18 1974-08-10
US3879131A (en) * 1974-02-06 1975-04-22 Bell Telephone Labor Inc Photomask inspection by real time diffraction pattern analysis
US3984189A (en) * 1973-01-19 1976-10-05 Hitachi Electronics, Ltd. Method and apparatus for detecting defects in a surface regardless of surface finish
JPS5228594A (en) * 1975-08-29 1977-03-03 Matsushita Electric Works Ltd Process for producing modified melamine resins having flexibility
JPS5385375A (en) * 1976-12-31 1978-07-27 Fujitsu Ltd Pattern inspecting device
JPS54128682A (en) * 1978-03-30 1979-10-05 Hitachi Ltd Automatic detector for foreign matters
JPS5594145A (en) * 1979-01-12 1980-07-17 Hitachi Ltd Method of and device for inspecting surface of article
JPS5599735A (en) * 1979-01-26 1980-07-30 Hitachi Ltd Testing method for foreign material on wafer
JPS55107942A (en) * 1979-02-13 1980-08-19 Matsushita Electric Works Ltd Inspecting method of plate
JPS55149829A (en) * 1979-05-11 1980-11-21 Hitachi Ltd Detector for foreign matter in wafer
JPS5780546A (en) * 1980-11-07 1982-05-20 Nippon Kogaku Kk <Nikon> Detecting device for foreign substance

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498292A (de) * 1972-05-10 1974-01-24
JPS4983470A (de) * 1972-11-18 1974-08-10
US3984189A (en) * 1973-01-19 1976-10-05 Hitachi Electronics, Ltd. Method and apparatus for detecting defects in a surface regardless of surface finish
US3879131A (en) * 1974-02-06 1975-04-22 Bell Telephone Labor Inc Photomask inspection by real time diffraction pattern analysis
JPS5228594A (en) * 1975-08-29 1977-03-03 Matsushita Electric Works Ltd Process for producing modified melamine resins having flexibility
JPS5385375A (en) * 1976-12-31 1978-07-27 Fujitsu Ltd Pattern inspecting device
JPS54128682A (en) * 1978-03-30 1979-10-05 Hitachi Ltd Automatic detector for foreign matters
JPS5594145A (en) * 1979-01-12 1980-07-17 Hitachi Ltd Method of and device for inspecting surface of article
JPS5599735A (en) * 1979-01-26 1980-07-30 Hitachi Ltd Testing method for foreign material on wafer
JPS55107942A (en) * 1979-02-13 1980-08-19 Matsushita Electric Works Ltd Inspecting method of plate
JPS55149829A (en) * 1979-05-11 1980-11-21 Hitachi Ltd Detector for foreign matter in wafer
JPS5780546A (en) * 1980-11-07 1982-05-20 Nippon Kogaku Kk <Nikon> Detecting device for foreign substance

Also Published As

Publication number Publication date
JPS57128834A (en) 1982-08-10

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