JPS57196140A - Tester for inspecting appearance of soldered printed board - Google Patents

Tester for inspecting appearance of soldered printed board

Info

Publication number
JPS57196140A
JPS57196140A JP8137881A JP8137881A JPS57196140A JP S57196140 A JPS57196140 A JP S57196140A JP 8137881 A JP8137881 A JP 8137881A JP 8137881 A JP8137881 A JP 8137881A JP S57196140 A JPS57196140 A JP S57196140A
Authority
JP
Japan
Prior art keywords
printed board
laser
inspection
tested
fillet
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.)
Pending
Application number
JP8137881A
Other languages
Japanese (ja)
Inventor
Yoshio Oike
Hidetoshi Kitsuya
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 JP8137881A priority Critical patent/JPS57196140A/en
Publication of JPS57196140A publication Critical patent/JPS57196140A/en
Pending 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

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)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

PURPOSE:To perform high-reliable self-inspection of a printed board for a soldering appearance, by a method wherein an objected to be tested is irradiated with a parallel laser spot, and a strength of reflecting laser light is detected by a plural number of detectors to compare it with a predetermined standard. CONSTITUTION:Lead wires of electronic components 11 engage a given through hole in a printed board to be tested, and a soldering fillet 2 is formed on a part where the lead wires protrude from the back of the printed board. A laser light source 5, which irradiates with a parallel laser spot crossing the surface of the printed board at right angles as shown in a solid line arrow mark, is mounted under a central under surface of a disc 82. An irradiating laser luminous flux is reflected by the fillet 2 surface and is detected by laser reflecting light strength detectors 7 at forward ends of a plural number of link levers 84 being located to equally-divided reverse conical surfaces. A detecting output is sent to a dividing 9, and is compared with a predetermined reference data to output a decision signal. This permits to perform a self-inspection and causes improving of reliability and efficiency.
JP8137881A 1981-05-27 1981-05-27 Tester for inspecting appearance of soldered printed board Pending JPS57196140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8137881A JPS57196140A (en) 1981-05-27 1981-05-27 Tester for inspecting appearance of soldered printed board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8137881A JPS57196140A (en) 1981-05-27 1981-05-27 Tester for inspecting appearance of soldered printed board

Publications (1)

Publication Number Publication Date
JPS57196140A true JPS57196140A (en) 1982-12-02

Family

ID=13744633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8137881A Pending JPS57196140A (en) 1981-05-27 1981-05-27 Tester for inspecting appearance of soldered printed board

Country Status (1)

Country Link
JP (1) JPS57196140A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540288A1 (en) * 1985-06-21 1987-01-02 Matsushita Electric Works Ltd ARRANGEMENT AND METHOD FOR CARRYING OUT CONTROLS AT SOLDERING POINTS
JPS63177042A (en) * 1987-01-19 1988-07-21 Nagoya Denki Kogyo Kk Detection system for non-soldered part in mounted printed circuit board automatic inspection apparatus
JPS63113947U (en) * 1987-01-19 1988-07-22
JPS63113946U (en) * 1987-01-19 1988-07-22
JP2017034153A (en) * 2015-08-04 2017-02-09 富士電機株式会社 Component mounting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540288A1 (en) * 1985-06-21 1987-01-02 Matsushita Electric Works Ltd ARRANGEMENT AND METHOD FOR CARRYING OUT CONTROLS AT SOLDERING POINTS
JPS63177042A (en) * 1987-01-19 1988-07-21 Nagoya Denki Kogyo Kk Detection system for non-soldered part in mounted printed circuit board automatic inspection apparatus
JPS63113947U (en) * 1987-01-19 1988-07-22
JPS63113946U (en) * 1987-01-19 1988-07-22
JP2017034153A (en) * 2015-08-04 2017-02-09 富士電機株式会社 Component mounting device

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