WO2004023122A1 - パターン検査方法とその検査装置 - Google Patents
パターン検査方法とその検査装置 Download PDFInfo
- Publication number
- WO2004023122A1 WO2004023122A1 PCT/JP2003/011187 JP0311187W WO2004023122A1 WO 2004023122 A1 WO2004023122 A1 WO 2004023122A1 JP 0311187 W JP0311187 W JP 0311187W WO 2004023122 A1 WO2004023122 A1 WO 2004023122A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductor pattern
- image
- pattern
- infrared light
- printing
- Prior art date
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 107
- 230000007547 defect Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000007639 printing Methods 0.000 claims description 43
- 238000010019 resist printing Methods 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000003384 imaging method Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- LWOXJAMHQRLYRT-UHFFFAOYSA-N CCC=C=S=O Chemical compound CCC=C=S=O LWOXJAMHQRLYRT-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920002454 poly(glycidyl methacrylate) polymer Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- -1 polyvinylsiloxane Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- G01N21/84—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
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
- H05K1/0269—Marks, test patterns or identification means for visual or optical inspection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
Definitions
- the present invention relates to a method and an apparatus for inspecting a printed circuit board on which a circuit pattern layer and a printed conductor pattern layer are formed for defects of the conductor pattern.
- pattern defect inspection or pattern quality inspection of printed circuit boards has been performed by irradiating the board with X-rays, ultraviolet light, visible light, infrared light, etc., and detecting the image of the pattern from reflected light, transmitted light, etc. Defect inspection or pass / fail inspection has been performed by comparing this with a reference pattern.
- Japanese Unexamined Patent Publication No. Heisei 5-322 989 discloses that a multilayer printed circuit board is irradiated with X-rays, and a defect of the board is detected by comparing the obtained transmission image with a reference pattern image.
- Japanese Patent Application Laid-Open No. Hei 9-12363615 discloses that a pattern image is detected on a substrate on which various patterns are formed by fluorescent illumination, near-infrared polarized light illumination, and oblique red illumination. Describes that various images can be separated from each other.
- inspection In printed circuit board manufacturing, visual inspection, the final step, detects defects or defects such as defects in conductor patterns, defective resists, poor silk printing, adherence of foreign matter, scratches, and chips.
- inspection of conductor patterns is important, as defects in conductor patterns can significantly impair circuit functions when components are mounted on a printed circuit board.
- an object of the present invention is to provide an inspection method and an inspection apparatus capable of detecting a defect in a conductor pattern even when resist printing and silk printing are performed on the conductor pattern on the surface of a printed circuit board. It is. Disclosure of the invention
- a pattern inspection method for inspecting a defect of the conductor pattern on a printed circuit board in which a conductor pattern is formed on a base material, and resist printing and silk printing are laminated on the conductor pattern in this order.
- a pattern inspection method characterized in that a conductor pattern is image-detected with infrared light only in a wavelength band that transmits both the resist printing and the silk printing.
- a pattern inspection method for inspecting a defect of the conductor pattern on a printed circuit board in which a conductor pattern is formed on a base material, and resist printing and silk printing are laminated on the conductor pattern in this order. Then, the printed circuit board is irradiated with infrared light, and out of the infrared light, infrared light only in a wavelength band that transmits both the resist printing and the silk printing is guided.
- This is a pattern inspection method characterized in that a conductor pattern is image-detected by reflected light reflected by a body pattern.
- a pattern inspection method for inspecting a defect of the conductor pattern on a printed circuit board in which a conductor pattern is formed on a base material, and resist printing and silk printing are laminated on the conductor pattern in this order.
- a pattern inspection for inspecting a defect of the conductor pattern on a print substrate in which a conductor pattern is formed on a base material, and resist printing and silk printing are laminated on the conductor pattern in this order.
- An infrared light source for irradiating the printed circuit board with infrared light; an optical system including a condenser lens and a filter; and an infrared light reflected by a conductor pattern of the printed circuit board.
- An optical system composed of a filter and an imaging lens for detection, an infrared image detection unit, and an inspection by comparing the inspection conductor pattern image and the reference conductor pattern image, which are images transmitted from the image detection unit; And an image processing unit for detecting a defect in the conductor pattern, and at least the optical system and the infrared image detecting unit are irrespective of the resist printing and the silk printing. Also a pattern inspection apparatus characterized by detecting the infrared light in the wavelength band only for transmitting together.
- the wavelength band of the infrared light to be detected is preferably 2.8 to 3.4 m or 3.5 to 4.6 m.
- a conductive pattern is formed on a base material, and resist printing and silk printing are laminated on the conductive pattern in this order. What is claimed is: 1.
- a pattern inspection apparatus for inspecting a defect of the conductor pattern on a printed circuit board, comprising: a means for heating the printed circuit board to a predetermined temperature in advance to provide a difference in radiant energy between the base material and the conductor pattern;
- An optical system including a filter for detecting infrared light thermally radiated from the conductor pattern and an imaging lens, an infrared image detection unit, and an image transmitted from the image detection unit.
- An image processing unit for comparing the inspection conductor pattern image with the reference conductor pattern image to detect a defect in the inspection conductor pattern, wherein the optical system and the infrared image detection unit are provided with the resist printing and the silk printing.
- the wavelength band of the infrared light to be detected is preferably 2.8 to 3.4 m or 3.5 to 4.6 m.
- FIG. 1 is a schematic diagram of a printed circuit board.
- FIG. 2 is a configuration diagram of one embodiment according to the present invention.
- FIG. 3 shows infrared spectral characteristics of resist printing in the present invention.
- FIG. 4 shows the infrared spectral characteristics of silk printing in the present invention.
- FIG. 5 is a configuration diagram of another embodiment according to the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION FIG. 1 schematically shows a printed circuit board in a final inspection step to be inspected.
- (A) of FIG. 1 is a plan view thereof, and (b) is a cross-sectional view taken along line AA of (a) of FIG.
- a conductor pattern 2 is formed on a substrate 1 of a printed circuit board, and a conductor pattern 2 excluding a part (land portion 3) and a resist print 4 are formed on an exposed portion of the substrate. In addition, a silk print 5 is formed on the resist print 4.
- the resist print 4 and the silk print 5 are each made of a resin such as an epoxy resin, and when observed with visible light, the resist print 4 is translucent green, and the silk print 5 is white (yellow). For this reason, in the final appearance inspection of the printed circuit board with visible light, it is not possible to detect the conductor pattern 2 particularly in the portion where the silk print 5 is performed.
- a resin such as an epoxy resin
- the infrared spectral characteristics of resist printing and silk printing there is an infrared transmission characteristic unique to each material, and there is a transmission wavelength band of infrared light common to resist printing and silk printing. I understand. With the infrared light in such a wavelength band, the following conductor pattern detection method was found.
- both the resist printing and the silk printing are transmitted, and the reflected light reflected by the conductor located underneath is detected to detect the conductor pattern.
- This is a conductor pattern detection method for image detection.
- the second is a conductor pattern detection method that detects conductor patterns as images by detecting infrared light that passes through both resist printing and silk printing from thermal radiation due to the emissivity and temperature of conductors and substrates. .
- the conductor pattern detection method in each case utilizes infrared light having a common wavelength band that passes through both resist printing and silk printing, and since the conductor pattern can be accurately detected, It can detect defects such as disconnection and contact, and adhesion of foreign matter such as metal.
- FIG. 2 is a diagram showing a configuration of one embodiment according to the present invention.
- Printed circuit boards include single-layer and multi-layer boards. Here, the cross section of a single-layer printed circuit board surface layer is schematically shown.
- a conductor pattern 2 is provided on a substrate 1 of a printed circuit board made of an insulating material.
- a resist print 4 and a silk print 5 are arranged in this order on the conductor pattern 2 so as to be laminated.
- Infrared light 7 emitted from a light source 6 such as a halogen lamp is transmitted through a condenser lens 8 and an infrared filter 9, the light path is changed by a half mirror 10, and then emitted to a printed circuit board.
- FIGS. 3 shows the light transmission characteristics of the resist print 4, with the horizontal axis representing the wavelength and the vertical axis representing the transmittance.
- Fig. 4 shows the light transmission characteristics of the silk print 5, 3.1 to 3.2 urn, and a wavelength band of 3.6 to 4.6 m.
- the infrared light 7 transmits through the silk print 5 and does not transmit the infrared light 7 in the wavelength band of 3.1 m or less, so that the transmission wavelength band common to the resist print 4 and the silk print 5
- the reflected light 11 transmitted through the resist print 4 and the silk print 5 and reflected by the conductor pattern 2 by the infrared light 7 including the wavelength band of 3.1 to 3.2 m has the conductor pattern image information.
- the reflected light 11 passes through the half-mirror 10 and is selected by the infrared band-pass filter 12 into the wavelength band of 3.1 to 3.2.
- the light passes through the lens 13 and is detected as a conductor pattern image by an image detection unit 14 such as an infrared camera that includes the same wavelength band in the sensitivity characteristics, where the wavelength band of infrared light is 3.1 to 3.2. m was selected, but it is also possible to select 3.6 to 4.6 m.
- image detection unit 14 such as an infrared camera that includes the same wavelength band in the sensitivity characteristics, where the wavelength band of infrared light is 3.1 to 3.2. m was selected, but it is also possible to select 3.6 to 4.6 m.
- the transmission wavelength band of the infrared light mentioned here was used for the resist printing 4 and the silk printing 5 of this example.
- the wavelength range of infrared light used for pattern inspection should be selected from the ranges of 2.8 to 3.4 m and 3.5 to 4.6 zm in consideration of these factors. Is preferred.
- the resins used for the resist printing 4 and the silk printing 5 include acrylate polymers such as polymethyl methacrylate and its copolymer, and epoxy resins such as epoxidized polybutadiene, polyglycidyl methacrylate and its copolymer.
- silicone polymer such as polyvinylsiloxane, unsaturated polymer such as polybutadiene, olefin-sulfone polymer such as poly (butene-1-sulfone), polystyrene and its derivatives, polymethacrylamide and many others Polymers.
- the resin used for the resist printing 4 and the silk printing 5 may be the same or different.
- the signal of the conductor pattern image is sent to the image processing unit 15, where the standard conductor pattern image of the printed circuit board having no defect and the conductor pattern image of the inspection target printed board stored in the image processing unit 15 are compared. By performing the comparison, the presence or absence of a defect in the conductor pattern to be inspected is detected.
- the wavelength selectivity of the infrared bandpass filter 12 is such that the infrared light in the transmission wavelength band common to the resist printing and the silk printing is transmitted and the infrared light outside the common transmission wavelength band is simultaneously transmitted. Desirably has a steep cutoff characteristic.
- the infrared light outside the common transmission wavelength band cannot be sufficiently blocked, the infrared light outside this band is reflected by resist printing or silk printing, which hinders the detection of the conductor pattern. That is, it is desirable to use infrared light only in the wavelength range that transmits both resist printing and silk printing for the detection of the conductor pattern.
- the filter 12 may be located at any position on the path of the infrared light 7 or the reflected light 11, and finally the image detection unit 1. What is necessary is just to be able to select the wavelength band of the infrared light incident on 4.
- the infrared bandpass filters 19 and 12 may complement each other in terms of wavelength selectivity.
- the optical path of the infrared light 7 to be irradiated is changed by the half mirror 10.
- the present invention is not limited to this, and the infrared light may be applied to the printed circuit board in an oblique direction.
- FIG. 5 shows a configuration diagram of another embodiment according to the present invention.
- substrate 1 for forming printed circuit board, conductive pattern 2, resist printing 4, silk printing 5, infrared bandpass filter 1 and 2, imaging lens 13 and image detection unit 14 and image processing The part 15 is the same as that described in the previous embodiment, and thus is given the same reference numeral.
- the transmission characteristics of the infrared light of the resist printing 4 and the silk printing 5 are the same as those described in the previous embodiment.
- a substrate made of epoxy resin or polyimide has a lower thermal conductivity and a larger heat capacity than a conductor pattern made of copper or solder.
- the difference in radiant energy between the base material 1 and the conductor pattern 2 can be set, and the heat radiation 19
- the sharpness of the image of the conductor pattern 2 with respect to the substrate 1 can be improved. It is more preferable from the viewpoint of sharpness to detect an image in a state where the radiant energy of the conductor pattern 2 is lower than the radiant energy of the base material 1.
- the two-dimensional image of the conductor pattern 2 In order to obtain the best results, a drive device that moves the printed circuit board in the X direction or the X and Y directions is provided, and multiple optical systems and an image detection unit are provided to perform image synthesis processing. The conductor pattern image of the substrate can be detected.
- a defect in a conductor pattern can be surely inspected by detecting an image of the conductor pattern with infrared light transmitted through both resist printing and silk printing. Therefore, the practical effect is very large, such as the reliability of the printed circuit board can be improved.
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- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Radiation Pyrometers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004534134A JP4504191B2 (ja) | 2002-09-03 | 2003-09-02 | パターン検査方法とその検査装置 |
AU2003261884A AU2003261884A1 (en) | 2002-09-03 | 2003-09-02 | Pattern inspection method and inspection device therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002258204 | 2002-09-03 | ||
JP2002-258204 | 2002-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004023122A1 true WO2004023122A1 (ja) | 2004-03-18 |
Family
ID=31973020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/011187 WO2004023122A1 (ja) | 2002-09-03 | 2003-09-02 | パターン検査方法とその検査装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4504191B2 (ja) |
AU (1) | AU2003261884A1 (ja) |
WO (1) | WO2004023122A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006112845A (ja) * | 2004-10-13 | 2006-04-27 | Ushio Inc | パターン検査装置 |
WO2007058117A1 (ja) * | 2005-11-15 | 2007-05-24 | Omron Corporation | 半田材検査装置 |
JP2007139451A (ja) * | 2005-11-15 | 2007-06-07 | Omron Corp | 半田材検査装置、半田材検査方法、半田材検査装置の制御プログラム、および半田材検査装置の制御プログラムを記録した記録媒体 |
JP2007139727A (ja) * | 2005-11-22 | 2007-06-07 | Omron Corp | 半田材検査装置、半田材検査方法、半田材検査装置の制御プログラム、および半田材検査装置の制御プログラムを記録した記録媒体 |
EP2056096A2 (en) | 2007-11-01 | 2009-05-06 | Nitto Denko Corporation | Producing method of wired circuit board comprising an inspection |
EP2056097A2 (en) | 2007-11-01 | 2009-05-06 | Nitto Denko Corporation | Producing method of wired circuit board |
CN101865863A (zh) * | 2009-04-15 | 2010-10-20 | 日东电工株式会社 | 线路板的制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59218938A (ja) * | 1983-05-27 | 1984-12-10 | Fujitsu Ltd | プリント基板の配線パタ−ン検査方法 |
JPS61189443A (ja) * | 1985-02-19 | 1986-08-23 | Hitachi Ltd | プリント基板パタ−ン検査装置 |
JPH08222832A (ja) * | 1995-02-14 | 1996-08-30 | Fujitsu Ltd | プリント基板の配線パターン観察方法 |
JP2001283194A (ja) * | 2000-03-28 | 2001-10-12 | Sony Corp | 回路基板の外観検査方法及び回路基板の外観検査装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001308494A (ja) * | 2000-04-25 | 2001-11-02 | Nikkiso Co Ltd | プリント基板検査方法および装置 |
JP2003172711A (ja) * | 2001-09-26 | 2003-06-20 | Dainippon Screen Mfg Co Ltd | 画像処理を利用した検査対象物の表面検査 |
-
2003
- 2003-09-02 AU AU2003261884A patent/AU2003261884A1/en not_active Abandoned
- 2003-09-02 JP JP2004534134A patent/JP4504191B2/ja not_active Expired - Fee Related
- 2003-09-02 WO PCT/JP2003/011187 patent/WO2004023122A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59218938A (ja) * | 1983-05-27 | 1984-12-10 | Fujitsu Ltd | プリント基板の配線パタ−ン検査方法 |
JPS61189443A (ja) * | 1985-02-19 | 1986-08-23 | Hitachi Ltd | プリント基板パタ−ン検査装置 |
JPH08222832A (ja) * | 1995-02-14 | 1996-08-30 | Fujitsu Ltd | プリント基板の配線パターン観察方法 |
JP2001283194A (ja) * | 2000-03-28 | 2001-10-12 | Sony Corp | 回路基板の外観検査方法及び回路基板の外観検査装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006112845A (ja) * | 2004-10-13 | 2006-04-27 | Ushio Inc | パターン検査装置 |
WO2007058117A1 (ja) * | 2005-11-15 | 2007-05-24 | Omron Corporation | 半田材検査装置 |
JP2007139451A (ja) * | 2005-11-15 | 2007-06-07 | Omron Corp | 半田材検査装置、半田材検査方法、半田材検査装置の制御プログラム、および半田材検査装置の制御プログラムを記録した記録媒体 |
JP2007139727A (ja) * | 2005-11-22 | 2007-06-07 | Omron Corp | 半田材検査装置、半田材検査方法、半田材検査装置の制御プログラム、および半田材検査装置の制御プログラムを記録した記録媒体 |
EP2056096A2 (en) | 2007-11-01 | 2009-05-06 | Nitto Denko Corporation | Producing method of wired circuit board comprising an inspection |
EP2056097A2 (en) | 2007-11-01 | 2009-05-06 | Nitto Denko Corporation | Producing method of wired circuit board |
CN101865863A (zh) * | 2009-04-15 | 2010-10-20 | 日东电工株式会社 | 线路板的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4504191B2 (ja) | 2010-07-14 |
JPWO2004023122A1 (ja) | 2005-12-22 |
AU2003261884A1 (en) | 2004-03-29 |
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