JPH0238884B2 - - Google Patents
Info
- Publication number
- JPH0238884B2 JPH0238884B2 JP58238954A JP23895483A JPH0238884B2 JP H0238884 B2 JPH0238884 B2 JP H0238884B2 JP 58238954 A JP58238954 A JP 58238954A JP 23895483 A JP23895483 A JP 23895483A JP H0238884 B2 JPH0238884 B2 JP H0238884B2
- Authority
- JP
- Japan
- Prior art keywords
- soldered
- wavelength
- printed circuit
- circuit board
- image
- 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 - Lifetime
Links
- 238000007689 inspection Methods 0.000 claims description 37
- 238000005476 soldering Methods 0.000 claims description 26
- 230000005284 excitation Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 35
- 238000010586 diagram Methods 0.000 description 26
- 239000000758 substrate Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 238000002073 fluorescence micrograph Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 230000005281 excited state Effects 0.000 description 3
- 230000005283 ground state Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 238000003705 background correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6456—Spatial resolved fluorescence measurements; Imaging
Landscapes
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (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)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58238954A JPS60131409A (ja) | 1983-12-20 | 1983-12-20 | はんだ付部検査方法とその装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58238954A JPS60131409A (ja) | 1983-12-20 | 1983-12-20 | はんだ付部検査方法とその装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60131409A JPS60131409A (ja) | 1985-07-13 |
| JPH0238884B2 true JPH0238884B2 (enrdf_load_stackoverflow) | 1990-09-03 |
Family
ID=17037760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58238954A Granted JPS60131409A (ja) | 1983-12-20 | 1983-12-20 | はんだ付部検査方法とその装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60131409A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2543028B2 (ja) * | 1985-10-18 | 1996-10-16 | 株式会社 日立製作所 | はんだ付修正装置 |
-
1983
- 1983-12-20 JP JP58238954A patent/JPS60131409A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60131409A (ja) | 1985-07-13 |
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