JPH0442622B2 - - Google Patents

Info

Publication number
JPH0442622B2
JPH0442622B2 JP22836982A JP22836982A JPH0442622B2 JP H0442622 B2 JPH0442622 B2 JP H0442622B2 JP 22836982 A JP22836982 A JP 22836982A JP 22836982 A JP22836982 A JP 22836982A JP H0442622 B2 JPH0442622 B2 JP H0442622B2
Authority
JP
Japan
Prior art keywords
hole
light
filter
specific wavelength
printed board
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
JP22836982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59126233A (ja
Inventor
Giichi Kakigi
Kikuo Mita
Moritoshi Ando
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP22836982A priority Critical patent/JPS59126233A/ja
Priority to US06/554,543 priority patent/US4560273A/en
Priority to DE8383307291T priority patent/DE3377527D1/de
Priority to EP83307291A priority patent/EP0111404B1/en
Publication of JPS59126233A publication Critical patent/JPS59126233A/ja
Publication of JPH0442622B2 publication Critical patent/JPH0442622B2/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
    • G01N21/95—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
    • G01N21/95692—Patterns showing hole parts, e.g. honeycomb filtering structures

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)
JP22836982A 1982-11-30 1982-12-27 プリント板のスルーホール検査方法及びその装置 Granted JPS59126233A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP22836982A JPS59126233A (ja) 1982-12-27 1982-12-27 プリント板のスルーホール検査方法及びその装置
US06/554,543 US4560273A (en) 1982-11-30 1983-11-23 Method and apparatus for inspecting plated through holes in printed circuit boards
DE8383307291T DE3377527D1 (en) 1982-11-30 1983-11-30 Method and apparatus for inspecting plated through holes in printed circuit boards
EP83307291A EP0111404B1 (en) 1982-11-30 1983-11-30 Method and apparatus for inspecting plated through holes in printed circuit boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22836982A JPS59126233A (ja) 1982-12-27 1982-12-27 プリント板のスルーホール検査方法及びその装置

Publications (2)

Publication Number Publication Date
JPS59126233A JPS59126233A (ja) 1984-07-20
JPH0442622B2 true JPH0442622B2 (enrdf_load_stackoverflow) 1992-07-14

Family

ID=16875379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22836982A Granted JPS59126233A (ja) 1982-11-30 1982-12-27 プリント板のスルーホール検査方法及びその装置

Country Status (1)

Country Link
JP (1) JPS59126233A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS59126233A (ja) 1984-07-20

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