WO2005008228A1 - 透過撮影装置 - Google Patents
透過撮影装置 Download PDFInfo
- Publication number
- WO2005008228A1 WO2005008228A1 PCT/JP2003/009233 JP0309233W WO2005008228A1 WO 2005008228 A1 WO2005008228 A1 WO 2005008228A1 JP 0309233 W JP0309233 W JP 0309233W WO 2005008228 A1 WO2005008228 A1 WO 2005008228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- sample
- transmission
- relative coordinates
- source
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
Definitions
- the present invention relates to a transmission imaging device. More specifically, the present invention relates to a transmission imaging apparatus which is provided with a radiation source and a radiation detector, a sample table for attaching a sample between the radiation source and the radiation detector, and which can display a captured image on a display device.
- a transmission imaging apparatus which is provided with a radiation source and a radiation detector, a sample table for attaching a sample between the radiation source and the radiation detector, and which can display a captured image on a display device.
- the conventional transmission imaging apparatus as described above has a window for checking the sample, and when setting the imaging position of the sample, the positioning of the sample is determined visually from the window, and the position is determined on the display screen. It was usual to do while. Therefore, since the photographing was performed while visually checking both the display screen and the sample, the workability was extremely poor.
- Some conventional transmission imaging apparatuses use an image intensifier as a radiation detector. This is because, as shown in Fig. 6 (a), the light receiving surface 102 is spherical, so that even if the sample is placed vertically on the detector, the unit image 104 as shown in Fig. 6 (b) can be obtained. Pincushion distortion occurs.
- an X-ray imaging apparatus that corrects pincushion distortion using a distortion correction lens has been proposed.
- the present invention automatically transmits a transmitted image with a simpler device configuration. It is an object of the present invention to provide a transmission imaging apparatus which can display images at any magnification and has excellent operability. Disclosure of the invention
- the transmission imaging apparatus is characterized in that a source and a radiation detector are provided, a sample tape for attaching a sample is provided between the source and the radiation detector, and transmission imaging is performed.
- a table driving mechanism capable of changing relative coordinates between the radiation source and the radiation detector and the sample table is provided, wherein the radiation detector is a flat panel X-ray detector.
- a display unit that displays a composite image generated by combining a plurality of captured unit images and adds coordinate data, and is capable of changing a position and a range on the composite image or an image forming a part thereof.
- the unit image 104a as shown in FIG. can shoot images without distortion.
- the synthesized image 105 a generated by synthesizing a plurality of photographed unit images becomes an image close to the real image of the sample.
- the composite image is close to the real image of the sample, it is not necessary to replace the distortion correction lens according to the magnification. Therefore, photographing can be performed at any magnification, and the configuration of the device is simplified.
- the composite image or the image forming the part and the selected image may be displayed in different windows.
- the imaging range can be selected in the window, the imaging position can be determined from the display screen without looking at the sample, and the operability of imaging can be improved.
- at least two of the different windows may be simultaneously displayed. With this configuration, different images can be simultaneously compared on the screen, so that operability can be further improved.
- the transmission imaging apparatus since the light receiving surface is configured to be planar, it is possible to capture an image without distortion. In addition, there is no need to change lenses, etc., simplifying the equipment, and enabling shooting at any magnification. As a result, it has become possible to provide a transmissive imaging apparatus which is capable of visually operating the display device, has excellent operability, has a simple configuration, and can be manufactured at low cost. In addition, the operability during shooting can be further improved by displaying the shot images in separate windows.
- FIG. 1 is a longitudinal sectional view of the transmission imaging apparatus.
- FIG. 2 is a plan side view of the transmission imaging apparatus.
- FIG. 3 is a sectional view taken along line AA of FIG.
- FIG. 4 is a diagram showing a window of the display device.
- (A) is a composite image window
- FIG. 1 shows a first selection window displaying the first selection unit selected in (a), and (c) shows a second selection window displaying an enlarged image of the second selection unit selected in (b).
- FIG. 5 is a block diagram illustrating image processing.
- FIGS. 6A and 6B are diagrams showing the relationship between the light receiving surface of the detector and the transmission image.
- FIG. 6A is a schematic diagram of the detector in the conventional transmission imaging apparatus
- FIG. (C) is a schematic view of a detector in the transmission imaging apparatus according to the present invention
- (d) is
- the transmission imaging apparatus 1 mainly includes an imaging unit 2 and an image processing unit 40.
- the imaging unit 2 shown in FIG. 1 includes a source device 3 serving as an X-ray source 3a, a sample table 4 on which a sample S is mounted, and a flat panel X-ray detector 5 for detecting transmitted X-rays.
- a source device 3 serving as an X-ray source 3a
- a sample table 4 on which a sample S is mounted
- a flat panel X-ray detector 5 for detecting transmitted X-rays.
- the sample table 4 is attached to a table drive mechanism 6.
- the table driving mechanism 6 moves the sample table 4 in the XY and Z directions by driving the table motor 6a based on the relative coordinate data.
- the flat panel X-ray detector 5 is a device in which a scintillator for converting X-ray energy into light is attached to an image sensor having a pixel matrix structure. Since the light receiving surface 5a of the flat panel X-ray detector 5 to which the scintillator is attached is planar, the captured image is close to the real image of the sample S without distortion. Finally, the transmitted image is output to the image processing unit 40 as an electric signal.
- the radiation source device 3 is to generate X-rays having a width larger than the effective radiation width V from the radiation source 3a, and is fixed to the housing 10. Then, the sample S is attached to the sample table 4 and irradiated with X-rays, and a plurality of unit images described later are taken.
- the table drive mechanism 6 generally includes a base frame 11, a horizontal slide shaft 12, a Y-axis frame 21, an X-axis frame 25, a sample table 4, It has a table motor 6a.
- the Y-axis frame 21 is provided with a pair of sliders 21 a and 21 a so as to slide freely on the horizontal slide shafts 12 and 12.
- Shaft motor 22 (6a) is installed.
- the pinion gear 2 2 a of the Y-axis motor 2 2 (6 a) engages with the rack 2 2 b provided on the base frame 11, and is driven by the Y-axis motor 2 2 (6 a) This moves the Y-axis frame 21 in the ⁇ direction.
- ⁇ A pair of vertical slide shafts 21b, 21b are fixed vertically on the Y-axis frame 21 on the Y-axis frame 21, and an upper frame 21c is fixed on the upper part thereof.
- a Z-axis motor 24 (6a) for driving and rotating the screw shaft 24b is attached to the pedestal 21d.
- the X-axis frame 25 is supported on each vertical slide shaft 21b by a slide bearing 25a. Then, by rotating the screw shaft 24 b with the Z-axis motor 24 (6 a) with respect to the ball screw 25 b of the X-axis frame 25, the X-axis frame 25 is turned in the Z direction Move.
- the sample table 4 is mounted on the upper part of the X-axis frame 25 via a pair of slide bearings 25c, 25c.
- X-axis motor 26 on X-axis frame 25 (6a) Force Pinion gear 26a is driven, and sample table 4 is moved in the X direction via rack 26b.
- the sample table 4 can be freely driven and controlled in the X, Y, and Z directions by the three table motors 6a of the Y-axis motor 22, the Z-axis motor 24, and the X-axis motor 26.
- the image processing section 40 mainly includes an image input section 41, an image synthesizing section 42, a shooting selection frame control section 43, a coordinate definition section 44, and a table control section 45. Further, a GUI control unit 46 for controlling a GUI (graphic user interface) as shown in FIG. 4, a display device 50 for displaying the GUI, and an image processing unit 40 operated via an input / output device 47 A mouse pointer 48 and a keyboard 49.
- the image input unit 41 captures the unit image 52 a shown in FIG. 4A together with the data of the table control unit 45 from the flat panel X-ray detector 5,
- a composite image 52 of (a) is created.
- the photographing selection frame control unit 43 controls the photographing selection frame 54 shown in FIGS. 4A and 4B, thereby acquiring the coordinates by the coordinate definition unit 44 and obtaining the above-described table via the table control unit 45.
- Drive motor 6a drives the photographing selection frame 54 shown in FIGS. 4A and 4B, thereby acquiring the coordinates by the coordinate definition unit 44 and obtaining the above-described table via the table control unit 45.
- the composite image window 51a is composed of the composite image 52 described above, an imaging button 53a for irradiating X-rays to perform imaging, a cancel button 53b, and a window.
- a window closing button 53c and a switching button 53d for displaying a first selection window 51b and a second selection window 51c are provided.
- the first selection window 51b includes a first selection portion 52X, a shooting button 53a for re-irradiating X-rays to perform shooting, a cancel button 53b, and a window closing.
- a button 53c and a switching button 53d for displaying a composite image window 51a and a second selection window 51c are provided.
- the second selection window 5 1c includes a second selection section 5 2 y, a shooting button 5 3 a for re-shooting the second selection section 5 2 y, a cancel button 5 3 b, and a window close button 5 3 c, and a switching button 53 d for displaying a composite image window 51 a and a first selection window 51 b.
- S is attached to the sample table 4, and the sample table 4 is moved to the top.
- X-rays are emitted from the radiation source 3a, and transmission imaging is performed on the light receiving surface 5a.
- the taken unit image 52 a is stored in the image synthesizing unit 42 via the image input unit 41.
- the sample table 4 is sequentially moved in the X and Y directions by the table motor 6a, and a plurality of unit images 52a are photographed.
- a composite image 52 is obtained by joining using the coordinate data given by the tape retraction controller 45.
- a plurality of unit images 52 a are designated in the photographing selection frame 54 of the main portion of the subject portion IM, and the first selection portion 52 X is selected.
- the first selection section 52X is displayed on the first selection window 51b shown in FIG. 4 (b). Then, the user selects the shooting selection frame 54 and selects the second selection section 52y.
- the second selection section 5 2y is displayed in the second selection window 5 1c, which is another window displayed simultaneously with the composite image window 51a and the first selection window 51b.
- the coordinates of the second selection section 52 y designated by the imaging selection frame control section 43 are given by the coordinate definition section 44 and sent to the table control section 45.
- the table motor 6a is driven by the coordinates of.
- the movement of the sample table 4 in the XY direction and the movement in the Z direction by the table motor 6 a is performed by comparing the field of view with the light receiving surface 5 a and the range of the shooting selection frame 54.
- the XY coordinates at the plane position of the imaging selection frame 54 are determined by the coordinate definition unit 44.
- an enlarged image at an arbitrary coordinate and an arbitrary magnification can be obtained using the imaging selection frame 54 from the composite image window 51a and the first selection window 51b.
- the source device 3 and the flat panel X-ray detector 5 are fixed, and the sample table 4 is driven. Then, the source device 3 and the flat panel X-ray detector 5 need only be moved relative to the sample table 4, and the source device 3 and the flat panel X-ray detector 5 can be moved together.
- the table driving mechanism 6 may be fixed.
- the first selection section 52X specified in the unit image 52a by the shooting selection frame 54 in the composite image window 51a is displayed in an enlarged size, and further, the first selection is performed.
- the range of the second selection section 5 2 y with the shooting selection frame 54 in the window 51 b an enlarged image with a free magnification was obtained in the second selection window 51 c.
- an enlarged image with a free magnification may be directly obtained in the second selection window 51c by designating the shooting selection frame 54 in the composite image window 51a.
- a digital flat panel X-ray detector is used as the radiation detector, but a device that has a substantially light-receiving surface and does not require another lens or the like may be used.
- other types of flat panel detectors, scannable line sensors, etc. can be used.
- the sample table 4 has a flat shape, but is not limited to the flat shape.
- the sample may have a curved surface corresponding to the sample.
- the unit image 52a is taken as a high-resolution image, and Combine multiple of them
- the configuration is such that the source 3a is below the sample table 4 and the flat panel X-ray detector 5 is above, but the source 3a is above and the flat panel X is below.
- the line detector 5 may be used.
- the source 3a is not necessarily limited to an X-ray source.
- a substance that generates radiation may be used.
- the present invention can be used as any transmission imaging apparatus that performs transmission imaging of a sample using radiation.
- the state of bonding on an electronic circuit board, the wettability of semiconductors and wires of electronic components and chips, the evaluation of mold resin, and the like can be performed by transmission photography.
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- 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)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005504389A JPWO2005008228A1 (ja) | 2003-07-22 | 2003-07-22 | 透過撮影装置 |
AU2003304359A AU2003304359A1 (en) | 2003-07-22 | 2003-07-22 | Transmission imager |
PCT/JP2003/009233 WO2005008228A1 (ja) | 2003-07-22 | 2003-07-22 | 透過撮影装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/009233 WO2005008228A1 (ja) | 2003-07-22 | 2003-07-22 | 透過撮影装置 |
Publications (1)
Publication Number | Publication Date |
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WO2005008228A1 true WO2005008228A1 (ja) | 2005-01-27 |
Family
ID=34074126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/009233 WO2005008228A1 (ja) | 2003-07-22 | 2003-07-22 | 透過撮影装置 |
Country Status (3)
Country | Link |
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JP (1) | JPWO2005008228A1 (ja) |
AU (1) | AU2003304359A1 (ja) |
WO (1) | WO2005008228A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013142585A (ja) * | 2012-01-10 | 2013-07-22 | Yamaha Motor Co Ltd | X線検査装置 |
RU201733U1 (ru) * | 2020-05-12 | 2020-12-30 | Общество с ограниченной ответственностью "ДИАГНОСТИКА-М" | Устройство рентгеновского контроля изделий микроэлектроники |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000046760A (ja) * | 1998-05-29 | 2000-02-18 | Shimadzu Corp | X線断層面検査装置 |
JP2002323460A (ja) * | 2001-04-26 | 2002-11-08 | Shimadzu Corp | X線透視撮影装置 |
JP2003028812A (ja) * | 2001-07-17 | 2003-01-29 | Shimadzu Corp | X線透視装置 |
JP2003166951A (ja) * | 2001-12-04 | 2003-06-13 | Pony Industry Co Ltd | 放射線透過撮影装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09233388A (ja) * | 1996-02-20 | 1997-09-05 | Hitachi Medical Corp | X線撮影装置 |
JPH09297111A (ja) * | 1996-05-08 | 1997-11-18 | Hihakai Kensa Kk | 放射線透過試験装置 |
JP4075166B2 (ja) * | 1998-11-30 | 2008-04-16 | 松下電器産業株式会社 | X線基板検査装置 |
JP2001255286A (ja) * | 2000-03-13 | 2001-09-21 | Hitachi Kenki Fine Tech Co Ltd | X線検査装置およびx線検査方法 |
JP3619132B2 (ja) * | 2000-08-25 | 2005-02-09 | 株式会社日立製作所 | 電子顕微鏡 |
JP4608820B2 (ja) * | 2001-06-26 | 2011-01-12 | 株式会社島津製作所 | X線検査装置 |
JP2003156454A (ja) * | 2001-11-26 | 2003-05-30 | Matsushita Electric Ind Co Ltd | X線検査装置とその制御方法と調整方法 |
-
2003
- 2003-07-22 JP JP2005504389A patent/JPWO2005008228A1/ja active Pending
- 2003-07-22 AU AU2003304359A patent/AU2003304359A1/en not_active Abandoned
- 2003-07-22 WO PCT/JP2003/009233 patent/WO2005008228A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000046760A (ja) * | 1998-05-29 | 2000-02-18 | Shimadzu Corp | X線断層面検査装置 |
JP2002323460A (ja) * | 2001-04-26 | 2002-11-08 | Shimadzu Corp | X線透視撮影装置 |
JP2003028812A (ja) * | 2001-07-17 | 2003-01-29 | Shimadzu Corp | X線透視装置 |
JP2003166951A (ja) * | 2001-12-04 | 2003-06-13 | Pony Industry Co Ltd | 放射線透過撮影装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013142585A (ja) * | 2012-01-10 | 2013-07-22 | Yamaha Motor Co Ltd | X線検査装置 |
RU201733U1 (ru) * | 2020-05-12 | 2020-12-30 | Общество с ограниченной ответственностью "ДИАГНОСТИКА-М" | Устройство рентгеновского контроля изделий микроэлектроники |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005008228A1 (ja) | 2006-08-31 |
AU2003304359A1 (en) | 2005-02-04 |
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