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JPS57148239A - Detecting method for wiring pattern of printed circuit board - Google Patents

Detecting method for wiring pattern of printed circuit board

Info

Publication number
JPS57148239A
JPS57148239A JP3390981A JP3390981A JPS57148239A JP S57148239 A JPS57148239 A JP S57148239A JP 3390981 A JP3390981 A JP 3390981A JP 3390981 A JP3390981 A JP 3390981A JP S57148239 A JPS57148239 A JP S57148239A
Authority
JP
Japan
Prior art keywords
wiring pattern
light
wave length
wiring
circuit 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.)
Granted
Application number
JP3390981A
Other languages
Japanese (ja)
Other versions
JPH0227616B2 (en
Inventor
Koichi Tsukazaki
Nobuaki Oki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3390981A priority Critical patent/JPS57148239A/en
Publication of JPS57148239A publication Critical patent/JPS57148239A/en
Publication of JPH0227616B2 publication Critical patent/JPH0227616B2/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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To enable correct detecting of even a stained part and an oxidized part of a wiring part through the increase in a difference in reflection rate between the wiring pattern and an insulating material, by performing an optical detection by use of light having a given wave length. CONSTITUTION:If a printed wiring boardIis irradiated with light with a wave length of 600-1,400nm from a light source 3, a difference in reflection rate between the insulating base material of the substrate 1 and a wiring pattern is large to the wave length, and thereby reflection light from a wiring pattern part is collected by a detector 7 by means of a better resolution to detect a wiring pattern through comparision with a reference value. This permits aaccurate detecting of even the stained part and oxidized part of the wiring pattern.
JP3390981A 1981-03-11 1981-03-11 Detecting method for wiring pattern of printed circuit board Granted JPS57148239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3390981A JPS57148239A (en) 1981-03-11 1981-03-11 Detecting method for wiring pattern of printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3390981A JPS57148239A (en) 1981-03-11 1981-03-11 Detecting method for wiring pattern of printed circuit board

Publications (2)

Publication Number Publication Date
JPS57148239A true JPS57148239A (en) 1982-09-13
JPH0227616B2 JPH0227616B2 (en) 1990-06-19

Family

ID=12399636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3390981A Granted JPS57148239A (en) 1981-03-11 1981-03-11 Detecting method for wiring pattern of printed circuit board

Country Status (1)

Country Link
JP (1) JPS57148239A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010251513A (en) * 2009-04-15 2010-11-04 Nitto Denko Corp Method of manufacturing printed circuit board
CN103969265A (en) * 2014-03-26 2014-08-06 宋剑锋 Application method of ultraviolet light in circuit board overhauling station

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240174862A1 (en) 2021-03-26 2024-05-30 Daicel Corporation Eutectic mixture and liquid composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5175495A (en) * 1974-12-25 1976-06-30 Hitachi Shipbuilding Eng Co Hakumakutono hinshitsukensanohohoto sochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5175495A (en) * 1974-12-25 1976-06-30 Hitachi Shipbuilding Eng Co Hakumakutono hinshitsukensanohohoto sochi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010251513A (en) * 2009-04-15 2010-11-04 Nitto Denko Corp Method of manufacturing printed circuit board
CN103969265A (en) * 2014-03-26 2014-08-06 宋剑锋 Application method of ultraviolet light in circuit board overhauling station

Also Published As

Publication number Publication date
JPH0227616B2 (en) 1990-06-19

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