WO2006059647A1 - 表面検査装置及び表面検査方法 - Google Patents
表面検査装置及び表面検査方法 Download PDFInfo
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- WO2006059647A1 WO2006059647A1 PCT/JP2005/021997 JP2005021997W WO2006059647A1 WO 2006059647 A1 WO2006059647 A1 WO 2006059647A1 JP 2005021997 W JP2005021997 W JP 2005021997W WO 2006059647 A1 WO2006059647 A1 WO 2006059647A1
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- Prior art keywords
- image
- outer peripheral
- plate
- camera unit
- imaging
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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- 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
- G01N21/9506—Optical discs
-
- 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
- G01N21/9501—Semiconductor wafers
-
- 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
- G01N21/9501—Semiconductor wafers
- G01N21/9503—Wafer edge inspection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8841—Illumination and detection on two sides of object
Definitions
- the present invention relates to a surface inspection apparatus and a surface inspection method for photographing a plurality of surfaces formed on an outer peripheral edge of a plate-like object such as a silicon wafer and obtaining images of the plurality of surfaces.
- an edge portion is formed on the outer peripheral edge of a silicon wafer, which is a plate-like object, by an outer peripheral surface and a pair of upper and lower plate surfaces of the silicon wafer.
- the edge is chamfered because it is easily damaged by external force.
- the outer peripheral surface of the silicon wafer has an outer peripheral surface and a first tapered surface and a second tapered surface formed by chamfering.
- the chamfered silicon wafer is inspected for defects such as dents, cracks, microprojections, and particle adhesion on the three surfaces of the outer peripheral edge.
- a conventional surface inspection apparatus has first to third CCD cameras 1 Oa, 10b, and 10c as imaging units.
- the outer peripheral edge of the disk-shaped silicon wafer 100 to be inspected the outer peripheral surface 101a, the upper tapered surface 101b formed by chamfering the upper edge of the silicon wafer 100, and the chamfering of the lower outer edge of the silicon wafer 100 Three surfaces of the lower tapered surface 101c formed in this way are formed.
- the first CCD camera 10a is disposed at a position facing the outer peripheral surface 101a of the outer peripheral edge, and the second CCD camera 10b is disposed at a position facing the upper tapered surface 101b. in front
- the third CCD camera 10c is disposed at a position facing the lower tapered surface 101c.
- the first to third CCD cameras 10 a, 10 b, and 10 c can be rotated by rotating the silicon wafer 100 around its center (not shown) as the outer peripheral edge of the silicon wafer 100.
- the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c are separately imaged.
- a corresponding image and an image corresponding to the lower tapered surface 101c based on the imaging signal output from the third CCD camera 10c are obtained separately.
- These images are displayed on a monitor device, for example.
- the inspector detects cracks and particles in the outer peripheral edge from images corresponding to the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c of the outer peripheral edge of the silicon wafer 100 displayed on the monitor device. It is inspected whether there is a defect such as adhesion.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-139523
- Patent Document 2 Japanese Patent Laid-Open No. 2003-243465
- the provision of the three CCD cameras 10a, 10b, and 10c may increase the size of the apparatus itself and increase the cost.
- the first to third CCD cameras 10a may increase the size of the apparatus itself and increase the cost.
- the image processing also becomes complicated.
- the present invention has been made to solve the conventional problems as described above, and provides a surface inspection apparatus and a surface inspection method that can be reduced in cost and can be made compact, and that image processing can be facilitated. It is to provide. [0013]
- the present invention is a surface inspection apparatus for inspecting a plurality of surfaces formed on an outer peripheral edge of a plate-like object,
- the imaging mechanism includes an optical system that guides images of a plurality of surfaces of the plate-like object in the same direction, and an imaging surface, and images of the plurality of surfaces guided in the same direction by the optical system are the imaging surfaces.
- the surface inspection apparatus comprises a single camera unit arranged so as to be imaged.
- the present invention is a surface inspection method for inspecting a plurality of surfaces formed on an outer peripheral edge of a plate-like object
- an image corresponding to a plurality of surfaces formed on the outer peripheral edge of the plate-like object to be inspected can be obtained by a single camera unit. Therefore, it becomes possible to achieve low cost and compactness of the apparatus.
- the image of each of the plurality of surfaces at the outer peripheral edge of the plate-like object is formed on the imaging surface of a single camera unit, the plurality of the plurality of surfaces imaged on the imaging surface is also used. Since these images can be processed all at once, the image processing becomes easy.
- FIG. 1 is a diagram showing a configuration example of an imaging mechanism in a surface inspection apparatus according to an embodiment of the present invention.
- FIG. 2 shows another configuration of the imaging mechanism in the surface inspection apparatus according to the embodiment of the present invention. It is a figure which shows a composition example.
- FIG. 3 is a diagram showing a basic configuration of a surface inspection apparatus according to an embodiment of the present invention.
- FIG. 4 is a diagram showing a silicon wafer to be imaged.
- FIG. 5 is a view showing an example of a display image when the outer peripheral edge portion where the notch of the silicon wafer shown in FIG. 4 is formed is photographed.
- FIG. 6 is a diagram showing another configuration example of the imaging mechanism in the surface inspection apparatus according to the embodiment of the present invention.
- FIG. 7 is a view showing an example of a display image when an outer peripheral edge portion where a notch of a silicon wafer is formed using the imaging mechanism shown in FIG.
- FIG. 8 is a diagram showing a configuration example of an imaging mechanism in a conventional surface inspection apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- the imaging mechanism 50 of the surface inspection apparatus is configured as shown in FIG.
- This surface inspection apparatus uses a plate-like silicon wafer 100 as an inspection object, and can inspect defects such as cracks and adhesion of particles on the outer periphery thereof.
- a silicon wafer 100 is set on a turntable 110 and rotates around its axis Lc as the turntable 110 rotates.
- the outer peripheral edge portion of the silicon wafer 100 is chamfered with an outer peripheral surface 101a and a first edge formed by the upper surface, which is a surface opposite to the outer peripheral surface 101a and the surface facing the turntable 110.
- An upper tapered surface 101b which is a first tapered surface formed by chamfering, and a second tapered surface formed by chamfering a second edge portion formed by the outer peripheral surface 101a and the lower surface facing the turntable. It has a lower tapered surface 101c.
- a first guide mirror 11 is disposed in the vicinity of the upper tapered surface 101b at the outer peripheral edge of the silicon wafer 100, and a second guide mirror 12 is disposed in the vicinity of the lower tapered surface 101c.
- the direction in which the image of the upper tapered surface 101b reflected by the first guide mirror 11 is guided is the same as the direction in which the image of the lower tapered surface 10 lc reflected by the second guide mirror 12 is guided.
- Tilt is set.
- the camera unit 20 includes a camera lens 20a and a camera body 20b.
- the camera body 20b includes, for example, a CCD line sensor 20c as an imaging device, and an image guided through the camera lens 20a is formed on the imaging surface 20d of the CCD line sensor 20c.
- the camera unit 20 has a visual field range including the outer peripheral edge of the silicon wafer 100, and the image of the upper tapered surface 101b and the lower side guided by the first guide mirror 11 and the second guide mirror 12 described above.
- the taper surface 101c is disposed at a position where the image is focused on the imaging surface 20d, that is, a position where the image is formed in focus.
- the relative positional relationship between the upper tapered surface 101b, the first guide mirror 11 and the camera unit 20 and the relative positional relationship between the lower tapered surface 101c, the second guide mirror 12 and the camera unit 20 are as follows. As described above, the image of the upper taper surface 101b and the image of the lower taper surface 101c can be simultaneously focused on the imaging surface 20d.
- An image of the outer peripheral surface 101a of the silicon wafer 100 is formed on the imaging surface 20d in the camera body 20b through the camera lens 20a of the camera unit 20.
- the optical path length from the upper tapered surface 101b and the lower tapered surface 101c to the camera unit 20 via the first guide mirror 11 and the second guide mirror 12, respectively, and the distance from the outer peripheral surface 101a to the camera unit 20 are as follows. Since the optical path lengths are different, the image of the outer peripheral surface 101a is not focused on the imaging surface 20d in the camera body 20b as it is. Therefore, the correction lens 13 having a convex lens force is installed between the outer peripheral surface 101a of the silicon wafer 100 and the camera cut 20.
- the virtual image forming position force is the optical path length to the camera unit 20, the upper tapered surface 101b and the lower tapered surface described above.
- the optical path lengths from 101c to the camera unit 20 through the first guide mirror 11 and the second guide mirror 12 can be made uniform.
- the image of the outer peripheral surface 101a of the silicon wafer 100 is guided by the correction lens 13 and the camera lens 20a so as to form an image in a focused state on the imaging surface 20d in the power main body 20b.
- the first guide mirror 11, the second guide mirror 12 and the correction lens 13 as an optical system installed between the camera unit 20 and the outer peripheral edge of the silicon wafer 100 allow the front to The images of the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c at the outer peripheral edge are guided so as to be focused on the imaging surface 20d of the camera unit 20.
- the correction lens 13 may not be installed between the camera unit 20 and the outer peripheral surface 101a of the silicon wafer 100.
- the camera unit 20 is installed at a position where the image of the outer peripheral surface 101a is focused on the imaging surface 20d by adjusting the focal position of the camera lens 20a.
- correction lenses each including a concave lens are installed in the optical path between the upper tapered surface 101b and the camera unit 20 and in the optical path to the lower tapered surface 101c and the camera unit 20, respectively. This also allows each image of the outer peripheral surface 101a, the upper tapered surface 101b, and the lower taper surface 101c of the silicon wafer 100 to be focused on the imaging surface 20d of the camera unit 20 in a focused state.
- the imaging in the focused state of the imaging surface 20d is not only when the image (real image or virtual image) captured by the camera unit 20 matches the focal position of the camera lens 20a. This includes cases where the focal length of the camera lens 20a is within the range.
- the surface inspection apparatus is provided with an illumination device (not shown) that illuminates the outer peripheral edge of the silicon wafer 100.
- an illumination device for example, a C-shaped light source used in the devices disclosed in Japanese Unexamined Patent Publication No. 2003-139523 and Japanese Unexamined Patent Publication No. 2003-243465 can be used.
- the imaging mechanism of the surface inspection apparatus can also be configured as shown in FIG.
- the imaging mechanism 50A in this case includes the direction changing mirror 14 that constitutes an optical system installed between the camera unit 20 and the outer peripheral edge of the silicon wafer 100.
- the direction conversion mirror 14 passes through the image of the outer peripheral surface 101a of the silicon wafer 100 guided through the correction lens 13, the image of the upper tapered surface 101b guided through the first guide mirror 11, and the second guide mirror 12.
- the image of the lower taper surface 101 c that is guided is reflected and the direction of guiding is converted by approximately 90 °.
- the camera unit 20 is arranged so as to form an image on the imaging surface 20d of the CCD line sensor 20c in each image force S camera body 20b reflected by the direction conversion mirror 14.
- the camera unit 20 (see FIG. 1) that has been installed facing the outer peripheral edge of the silicon wafer 100 to be inspected is replaced with the silicon wafer. It will be possible to install 100 diagonally below.
- the surface inspection apparatus includes the camera unit 20, the image processing apparatus 30, and the monitor apparatus 40 that are arranged at predetermined positions in which the outer peripheral edge of the silicon wafer 100 is in the visual field range.
- the camera unit 20 sequentially outputs image signals corresponding to three images of the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c of the silicon wafer 100 rotated by the turntable 110. send.
- the image processing device 30 sequentially captures image signals from the camera unit 20, and based on the image signals, stores image data representing an image captured by the camera unit 20 in a one-screen image memory. expand. Then, the image processing device 30 sequentially outputs the image data for one screen developed on the image memory to the monitor device 40. As a result, the image for one screen is displayed on the monitor device 40.
- the notch 102 is taken in when the camera unit 20 enters the visual field range.
- the image displayed on the monitor device 40 is as shown in FIG.
- the field image portion Ea corresponding to the outer peripheral surface 101a of the silicon wafer 100, the field image portion Eb corresponding to the upper taper surface 101b sandwiching it, and the lower taper surface
- the visual field image portion Ec corresponding to 101c is displayed.
- An outer peripheral surface image 200a including the notch portion 201a appears in the visual field image portion Ea corresponding to the outer peripheral surface 101a, and an upper tapered portion including the notch portion 20 lb in the visual field image portion Eb corresponding to the upper tapered surface 101b.
- the surface image 200b appears, and the lower tapered surface image 200c including the notch portion 201c appears in the visual field image portion Ec corresponding to the lower tapered surface 101c.
- the outer peripheral surface image 200a, the upper tapered surface image 200b, and the lower tapered surface image 200c are originally images included in one screen. Therefore, even if these images are not synchronized
- the horizontal position on the screen 40a of the notch 201a of the outer peripheral surface image 200a, the notch 201b of the upper tapered surface image 200b, and the notch 201c of the lower tapered surface image 200c is the same.
- the inspector looks at the outer peripheral surface image 200a, the upper tapered surface image 200b, and the lower tapered surface image 200c that appear as one screen image on the screen 40a of the monitor device 40, and the outer peripheral surface 101a of the outer peripheral edge portion.
- a defect such as a dent, a crack, a minute protrusion, or an adhesion of particles.
- the surface inspection apparatus by photographing the outer peripheral edge of the silicon wafer 100 with the single camera unit 20, the outer peripheral surface 101a constituting the outer peripheral edge, the upper taper.
- An image for one screen including a clear outer peripheral surface image 200a, an upper tapered surface image 200b, and a lower tapered surface image 200c corresponding to the respective images of the surface 101b and the lower tapered surface 101c is displayed on the motor device 40. It becomes like this. Therefore, the conventional apparatus does not require a plurality of cameras for individually photographing each surface, and can achieve low cost and compactness of the apparatus.
- the image processing apparatus 30 processes image data corresponding to the images of the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c as image data for one screen rather than individually processing the image data. Can do. This makes it possible to reduce the amount of image processing, and as described above, even when the silicon wafer 100 to be inspected rotates, it is necessary to synchronize the image display corresponding to each surface. Nor. For this reason, the processing in the image processing apparatus 30 is also relatively simple.
- FIG. 6 shows still another embodiment of the surface inspection apparatus.
- the same parts as those in FIG. 1 are denoted by the same symbols, and detailed description thereof is omitted.
- the imaging mechanism 50 shown in FIG. 1 images the outer peripheral surface 101a, the upper tapered surface 101b, and the lower tapered surface 101c of the silicon wafer 100
- the imaging mechanism 50B shown in FIG. the images of the outer peripheral edge upper surface 100a and the outer peripheral edge lower surface 100b of the silicon wafer 100 are imaged on the imaging surface 20d in the camera body 20b through the camera lens 20a of the camera unit 20.
- the imaging mechanism 50B is provided in the vicinity of the outer peripheral edge upper surface 100a of the silicon wafer 100.
- the third guide mirror 15 is disposed on the outer peripheral edge lower surface 100b, and the fourth guide mirror 16 is disposed near the lower surface 100b of the outer peripheral edge. Both the direction in which the image of the outer peripheral edge upper surface 100a reflected by the third guide mirror 15 is guided and the direction in which the image of the outer peripheral surface lower surface 100b reflected by the fourth guide mirror 16 is guided are the first.
- the third taper 101 b is parallel to the direction in which the image of the upper tapered surface 101 b reflected by the first guide mirror 11 and the image of the lower tapered surface 101 c reflected by the second guide mirror 12 are guided. The tilt angles of the guide mirror 15 and the fourth guide mirror 16 are set.
- the images of the outer peripheral edge upper surface 100a and the outer peripheral edge lower surface 100b of the silicon wafer 100 are formed on the imaging surface 20d in the camera body 20b through the camera lens 20a of the camera unit 20.
- correction lenses 17 having a concave lens force are provided between the outer peripheral edge upper surface 100a of the silicon wafer 100 and the camera unit 20 and between the outer peripheral edge lower surface 100b and the camera unit 20, respectively.
- optical path lengths of the two can be optically aligned by installing the correction lens 17, the image power correction lens 17 and the camera lens of the outer peripheral edge upper surface 100a and the outer peripheral edge lower surface 100b of the silicon wafer 100 are provided. When guided into the camera body 20b through 20a, these images are focused on the imaging surface 20d of the CCD line sensor 20c.
- the outer peripheral surface of the outer periphery of the silicon wafer 100 is formed by the first to fourth guide mirrors 11, 12, 15, 16 and the correction lenses 13, 17 as the optical system.
- 101a, upper taper surface 101b, lower taper surface 101c, outer peripheral edge upper surface 100a and outer peripheral edge lower surface 100b are each focused on the imaging surface 20d of the single camera unit 20 in a focused state. Led.
- the camera unit 20 sequentially sends image signals corresponding to five images of the silicon wafer 100 rotated by the turntable 110 to the image processing device 30 shown in FIG.
- the image processing device 30 sequentially captures image signals from the camera unit 20, and develops image data representing an image captured by the camera unit 20 in an image memory based on the image signals. Then, the image processing device 30 sequentially outputs the image data for one screen developed on the image memory to the monitor device 40.
- FIG. 7 shows an image displayed on the screen 40a of the monitor device 40 when the silicon wafer 100 is imaged using the imaging mechanism 50B, and corresponds to FIG.
- FIG. 7 differs from FIG. 5 in that the field image portion Ed corresponding to the outer peripheral edge upper surface 100a of the silicon wafer 100 and the outer peripheral edge lower surface 100b are displayed in the screen 40a of the monitor device 40.
- the corresponding visual field image portion Ee is displayed at the uppermost position and the lowermost position, respectively.
- the outer peripheral edge upper surface image 200d including the notch 201d appears in the visual field image portion Ed corresponding to the outer peripheral edge upper surface 100a
- the visual field image portion Ee corresponding to the outer peripheral edge lower surface 100b includes the notch 201e.
- the outer peripheral edge lower surface image 200e appears.
- the outer peripheral surface image 200a, the upper tapered surface image 200b, the lower tapered surface image 200c, the outer peripheral edge upper surface image 200d, and the outer peripheral peripheral surface lower surface image 200e Becomes an image included in one screen.
- the notch portion 201a of the outer peripheral surface image 200a, the notch portion 201b of the upper tapered surface image 200b, and the notch portion 201c of the lower tapered surface image 200c The horizontal position on the screen 40a of the notch portion 201d of the outer peripheral edge upper surface image 200d and the notch portion 201e of the outer peripheral edge lower surface image 20Oe is the same.
- the inspector looks at the screen 40a of the monitor device 40 and sees the outer peripheral surface 101a of the outer peripheral edge of the silicon wafer 100, the upper tapered surface 101b, the lower tapered surface 101c, the outer peripheral upper surface 100ad and It can be visually inspected whether the outer peripheral edge lower surface 100b has a defect such as a dent, a crack, a minute protrusion, or an adhesion such as a particle.
- the optical system installed between the camera unit 20 and the outer peripheral edge of the silicon wafer 100 to be inspected is not limited to the configuration shown in FIGS. 1, 2, and 6, and the outer peripheral edge thereof. There is no particular limitation as long as each image of a plurality of surfaces constituting the unit can be guided to the camera unit 20 and imaged on the imaging surface 20d of the CCD line sensor 20c!
- the image processing device 30 displays an image based on the image signal from the camera unit 20.
- predetermined image analysis processing just by displaying the data on the data device 40, it is possible to automatically determine the presence / absence of a defect, the number, classification, and the like.
- the surface inspection apparatus and the surface inspection method according to the present invention can be reduced in cost and can be made compact, and image processing thereof can be facilitated. It is useful as a surface inspection apparatus and a surface inspection method for inspecting the surface of the surface. Industrial applicability
- the surface inspection apparatus and the surface inspection method of the present invention it is possible to obtain images corresponding to a plurality of surfaces at the outer peripheral edge of a plate-like object to be inspected using a single camera unit. Therefore, low cost and compactness of the apparatus can be achieved.
- images of the plurality of surfaces at the outer peripheral edge of the plate-like object to be inspected are formed on the imaging surface of a single camera unit, and a plurality of the plurality of surfaces imaged on the imaging surface are formed. Since the images corresponding to these images can be processed at once, the image processing becomes easy.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2006547980A JP4990630B2 (ja) | 2004-11-30 | 2005-11-30 | 表面検査装置及び表面検査方法 |
CN2005800411775A CN101069088B (zh) | 2004-11-30 | 2005-11-30 | 表面检查装置 |
US11/754,417 US7403278B2 (en) | 2004-11-30 | 2007-05-29 | Surface inspection apparatus and surface inspection method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-345141 | 2004-11-30 | ||
JP2004345141 | 2004-11-30 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/754,417 Continuation US7403278B2 (en) | 2004-11-30 | 2007-05-29 | Surface inspection apparatus and surface inspection method |
Publications (1)
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WO2006059647A1 true WO2006059647A1 (ja) | 2006-06-08 |
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PCT/JP2005/021997 WO2006059647A1 (ja) | 2004-11-30 | 2005-11-30 | 表面検査装置及び表面検査方法 |
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US (1) | US7403278B2 (ja) |
JP (1) | JP4990630B2 (ja) |
KR (1) | KR100904007B1 (ja) |
CN (1) | CN101069088B (ja) |
TW (1) | TWI388798B (ja) |
WO (1) | WO2006059647A1 (ja) |
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JP2009115668A (ja) * | 2007-11-07 | 2009-05-28 | Shibaura Mechatronics Corp | 板状基板のエッジ検査装置 |
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JP2020004998A (ja) * | 2019-09-25 | 2020-01-09 | 東京エレクトロン株式会社 | 基板撮像装置 |
Also Published As
Publication number | Publication date |
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TWI388798B (zh) | 2013-03-11 |
TW200626869A (en) | 2006-08-01 |
US20070222977A1 (en) | 2007-09-27 |
JPWO2006059647A1 (ja) | 2008-06-05 |
US7403278B2 (en) | 2008-07-22 |
KR100904007B1 (ko) | 2009-06-22 |
JP4990630B2 (ja) | 2012-08-01 |
CN101069088B (zh) | 2010-05-12 |
CN101069088A (zh) | 2007-11-07 |
KR20070064376A (ko) | 2007-06-20 |
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