WO2023008361A1 - 二次元分光装置、観察システム、管理システム、情報処理装置及びプログラム - Google Patents
二次元分光装置、観察システム、管理システム、情報処理装置及びプログラム Download PDFInfo
- Publication number
- WO2023008361A1 WO2023008361A1 PCT/JP2022/028593 JP2022028593W WO2023008361A1 WO 2023008361 A1 WO2023008361 A1 WO 2023008361A1 JP 2022028593 W JP2022028593 W JP 2022028593W WO 2023008361 A1 WO2023008361 A1 WO 2023008361A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dimensional
- subject
- spectroscopic
- dimensional direction
- data
- Prior art date
Links
- 238000004611 spectroscopical analysis Methods 0.000 title claims abstract description 41
- 230000010365 information processing Effects 0.000 title claims description 9
- 238000003384 imaging method Methods 0.000 claims abstract description 64
- 230000003595 spectral effect Effects 0.000 claims abstract description 64
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000004458 analytical method Methods 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 description 40
- 238000010586 diagram Methods 0.000 description 9
- 235000012431 wafers Nutrition 0.000 description 8
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000000701 chemical imaging Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/443—Emission spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- 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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
-
- 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
- G01N21/6489—Photoluminescence of semiconductors
Definitions
- the present invention relates to a Push Broom two-dimensional spectrometer, an observation system, a management system, an information processing device, and a program capable of measuring, for example, the wavelengths of light-emitting elements contained in a subject.
- Two-dimensional spectroscopic devices are widely used academically, but the data size is one-dimensional in the wavelength direction in addition to the two-dimensional space, so the data size is enormous, so there were few opportunities to use it as a measurement device.
- LED light emitting diode
- Patent Document 1 There are several types of two-dimensional spectrometers, but the Push Broom method has been used for a long time (for example, Patent Document 1), and it is clear that it gives highly reliable measurement results.
- the present invention has been made in order to solve such problems, and is a two-dimensional spectroscopy of a push-bloom method that enables simultaneous observation of the periphery of the acquisition area of the spectral data of the object while acquiring the spectral data. It aims at providing an apparatus, an observation system, a management system, an information processing apparatus, and a program.
- the above object is achieved by the following means.
- (1) Obtaining spectroscopy data by spectrally dispersing light from a plurality of minute parts in a one-dimensional direction of an object that has passed through an objective lens, and scanning in a direction perpendicular to the one-dimensional direction to obtain two-dimensional data of the object; a two-dimensional spectroscopic means for obtaining spectroscopic data for a region of directions; an imaging means arranged on the optical axis of the objective lens and capable of imaging at least a peripheral portion of each minute portion in the one-dimensional direction; A two-dimensional spectrometer equipped with (2) The two-dimensional spectroscopic apparatus according to (1) above, wherein the focal positions of the two-dimensional spectroscopic means and the imaging means are the same.
- the position analysis means obtains the positional relationship between the characteristic portion of the subject and each minute portion in the one-dimensional direction, taking into account the amount of scanning, and 6.
- the two-dimensional spectroscopy according to the preceding item 5 wherein a data map with position information is created for the region of the subject in the two-dimensional direction by associating and recording the positional relationship and the spectral data and/or the feature amount based on the spectral data.
- the two-dimensional spectroscopic device according to any one of the preceding items 1 to 6, wherein the light from the subject received by the two-dimensional spectroscopic means is light emitted by the subject being excited by irradiation with an excitation light source.
- the two-dimensional spectroscopic device according to 1.
- (9) obtaining spectroscopic data by spectrally dispersing light from a plurality of minute parts in a one-dimensional direction of an object that has passed through the objective lens; a two-dimensional spectroscopic means for obtaining spectroscopic data for a region of directions; an imaging means arranged on the optical axis of the objective lens and capable of imaging at least a peripheral portion of each minute part in the one-dimensional direction; a position analysis means for obtaining a positional relationship between a characteristic part of the subject imaged by the imaging means and each minute part in the one-dimensional direction; with Each time scanning is performed in a direction perpendicular to the one-dimensional direction, the position analysis means obtains the positional relationship between the characteristic portion of the subject and each minute portion in the one-dimensional direction, taking into consideration the amount of scanning, and the obtained positional relationship.
- a two-dimensional spectroscopy means for acquiring spectroscopy data for a two-dimensional area of the subject, a position analysis means for obtaining a positional relationship between a characteristic part of the subject imaged by the imaging means and each minute part in the one-dimensional direction; with Each time scanning is performed in a direction perpendicular to the one-dimensional direction, the position analysis means obtains the positional relationship between the characteristic portion of the subject and each minute portion in the one-dimensional direction, taking into consideration the amount of scanning, and the obtained positional relationship.
- a management system comprising management means for managing the spectral data and/or the feature amount based on the spectral data for each light emitting region.
- the two-dimensional spectroscopic apparatus according to any one of the preceding items 1 to 4, further comprising a position analysis means for obtaining a positional relationship between a characteristic part of a subject imaged by the imaging means and a plurality of minute parts in the one-dimensional direction, Each time scanning is performed in a direction perpendicular to the one-dimensional direction, the position analysis means obtains the positional relationship between the characteristic portion of the subject and each minute portion in the one-dimensional direction, taking into consideration the amount of scanning, and the obtained positional relationship. and spectral data and/or a feature amount based on the spectral data in association with each other to create a data map with position information for the area of the subject in the two-dimensional direction.
- a computer executes a position analysis step of obtaining a positional relationship between a characteristic part of a subject imaged by the imaging means and each minute part in the one-dimensional direction.
- the positional relationship between the characteristic portion of the object and each minute portion in the one-dimensional direction is obtained in consideration of the amount of scanning, and the obtained positional relationship is obtained.
- spectroscopic data and/or feature amounts based on the spectroscopic data in association with each other to cause the computer to execute a process of creating a data map with position information for the area of the subject in the two-dimensional direction.
- the subject has a plurality of light emitting areas, and causing the computer to further execute a management step of managing the spectral data and/or the feature amount based on the spectral data for each light emitting area. program as described.
- the light from a plurality of minute parts in the one-dimensional direction of the subject that has passed through the objective lens is dispersed to obtain the spectral data, and the light is obtained in the direction perpendicular to the one-dimensional direction.
- scanning in addition to being able to acquire spectral data for a two-dimensional area of the subject, it is arranged on the optical axis of the objective lens and can image at least the peripheral part of each minute part in one-dimensional direction. Since the image pickup means is provided, the peripheral portion of each minute part in the one-dimensional direction, which is the acquisition area of the spectral data of the object, can be observed by the image pickup means simultaneously with the acquisition of the spectral data.
- the scanning of the two-dimensional spectroscopic means is performed by moving at least one of the subject and the two-dimensional spectroscopic device in the one-dimensional direction and the vertical direction. spectroscopic data can be reliably acquired for each minute portion of the
- each time scanning is performed in the direction perpendicular to the one-dimensional direction the positional relationship between the characteristic part of the object and the minute part in the one-dimensional direction is obtained by taking into consideration the amount of scanning, Since the obtained positional relationship and the spectroscopic data and/or the feature amount based on the spectroscopic data are recorded in association with each other, a data map with position information can be created for the area of the object in the two-dimensional direction.
- the light from the object received by the two-dimensional spectroscopic means is the light emitted by the object excited by the irradiation of the excitation light source. Even a light-emitting device that has been subjected to dicing can be caused to emit light by excitation light before dicing to obtain two-dimensional spectroscopic data.
- spectral data of a subject such as a display having a plurality of light emitting areas and/or feature amounts based on the spectral data can be managed for each light emitting area.
- the imaging means can simultaneously observe the peripheral portions of a plurality of one-dimensionally small parts, which are the acquisition regions of the spectral data of the subject such as a display, and Since a data map with high-precision position information can be created for the two-dimensional area of the subject, it is possible to efficiently inspect the subject.
- a data map with highly accurate position information can be created, and spectral data and/or spectral data can be Based on the feature amount can be managed for each light emitting area.
- the information processing device can obtain the positional relationship between the characteristic part of the subject imaged by the imaging means and a plurality of minute parts in the one-dimensional direction on the side of the two-dimensional spectroscopic means. can.
- the information processing apparatus can create a spectral data map with highly accurate position information for a two-dimensional area of the object.
- the information processing device can create a data map with highly accurate position information for a subject such as a display having a plurality of light emitting areas.
- a computer can be caused to create a location-informed data map for the region of directions.
- the computer further performs the process of managing the spectral data and/or the feature amount based on the spectral data for each light emitting region. can be executed.
- FIG. 1(A) is a schematic external view of a two-dimensional spectroscopic device according to an embodiment of the present invention
- (B) shows an irradiation range of a subject by an excitation light source and an imageable range (observation range) by an imaging device.
- FIG. 2 is a block diagram showing the configuration of the two-dimensional spectroscopic device shown in FIG. 1(A);
- FIG. FIG. 3 is a diagram for explaining the relationship between a spectroscopic section, an imaging lens, and an area sensor in a two-dimensional spectroscopic device;
- FIG. 2 is a plan view showing a display, which is a subject, by partially enlarging it.
- FIG. 4 is a diagram showing the relationship between the sizes of a plurality of light emitting elements on a subject and the pixels of an area sensor; (A) is an image captured by an imaging device including characteristic locations on a subject, and (B) is a diagram for explaining the positional relationship between the characteristic locations and minute regions.
- FIG. 4 is a diagram schematically showing a light receiving state at a corresponding pixel when an area sensor receives light of an arbitrary wavelength out of light received from the surface of a subject;
- FIG. 4 is a diagram showing a state in which received light data for each pixel of an area sensor is separated for each light emitting region; 3 is a graph plotting values for each wavelength for a pixel of interest in one light-emitting region and drawing a fitting curve based thereon;
- FIG. 10 is an explanatory diagram of a measurement method for a wide measurement range of an object made of a wafer having LED chips;
- FIG. 1(A) is a schematic external view of a push-bloom type two-dimensional spectroscopic device 1 according to an embodiment of the present invention
- FIG. 2 is a block diagram showing the configuration of the two-dimensional spectroscopic device 1 as well.
- the two-dimensional spectroscopic device 1 shown in FIGS. 1A and 2 includes an objective lens 2 capable of changing magnification arranged in a cylindrical body 20, a spectroscopic section 3, an imaging lens 4, a CCD sensor and the like.
- a hyperspectral imaging system (hereinafter referred to as a figure 1) 9, also referred to as HSI.
- the spectroscopic section 3 , the imaging lens 4 and the area sensor 5 are arranged on the optical axis 2 a of the objective lens 2 .
- the two-dimensional spectroscopic device 1 includes an imaging device 8 in addition to the HSI 9.
- the imaging device 8 has a two-dimensional imaging device such as a CCD sensor arranged on the optical axis 2a of the objective lens 2, and observes the measurement area of the object 100 through the imaging device 8 visually or through an image. It is possible.
- a reflecting mirror 10 is arranged on the optical axis 2a of the objective lens 2 inside the cylindrical body 20 between the objective lens 2 and the area sensor 5 and imaging device 8 .
- the reflecting mirror 10 is driven to rotate vertically about a horizontal axis (not shown) as indicated by an arrow in FIG. there is
- the light from the subject 100 incident through the objective lens 2 is reflected toward the HIS 9 and is received by the spectroscopic section 3, and when it exits from the optical axis 2a, the light from the subject 100 advances to the image pickup device 8 and is received by the image pickup device 8, whereby the spectral measurement by the HSI 9 and the image pickup by the image pickup device 8 can be switched.
- a half mirror is placed on the optical axis 2a instead of the reflecting mirror 10, and part of the light from the subject 100 is reflected by the half mirror to the HSI 9 side and part of the light is transmitted to the image pickup device 8, so that the HSI 9 It may be configured such that spectroscopic measurement by and imaging by the imaging device 8 can be performed at the same time.
- the focus positions of the area sensor 5 of the HSI 9 and the imaging device 8 are set to be the same. Thereby, the image captured by the imaging device 8 can be used to properly adjust the focus of the HSI 9 .
- the two-dimensional spectrometer 1 is equipped with an excitation light source 11 that is used as needed.
- the excitation light source 11 is used according to the type of subject 100 .
- the excitation light source 1 irradiates the LED chips on the subject 100 with excitation light to excite the LED chips to emit light.
- two-dimensional spectroscopic data can be obtained by causing the LED chips to emit light with the excitation light before dicing the wafer.
- FIG. 1B shows an irradiation range (indicated by hatching) 31 of the subject 100 by the excitation light source 1 and an imaging range (observation range) 32 smaller than the irradiation range 31 by the imaging device 8 .
- the subject 100 is a display or the like having a large number of light emitting elements such as LEDs, the light emitting elements may emit light without using the light source 11 for excitation.
- the spectroscopic section 3 separates the light from the subject 100 that has passed through the objective lens 2 into wavelengths, and the imaging lens 4 forms an image of the light of each wavelength separated by the spectroscopic section 3 on the area sensor 5 .
- the area sensor 5 has a plurality of pixels 51 arranged vertically and horizontally as shown in FIG.
- the horizontal direction of the area sensor 5 (the Y direction in FIG. 3) means the horizontal direction of the physical space, and each pixel 51 in the horizontal direction corresponds to a minute portion 50 (described later) of the subject 100 in the horizontal direction.
- the vertical direction (the Z direction in FIG. 3) of the area sensor 5 corresponds to the brightness (luminance) for each wavelength of light. That is, each pixel 51 in the horizontal pixel row corresponds to a plurality of one-dimensional minute parts 50 of the object 100, and the light emitted from each minute part and wavelength-resolved is emitted from each pixel row in the vertical direction. Light is received by the pixel 51 .
- the two-dimensional spectroscopic device 1 may be moved in the Z direction of FIG. 3, or both the object 100 and the two-dimensional spectroscopic device 1 may be moved with a speed difference, In short, at least one of the subject 100 and the two-dimensional spectroscopic device 1 should be moved relative to the other in the Z direction in FIG. However, it is preferable to move the object 100 because control is easy. Also in this embodiment, the subject 100 is to be moved, and as shown in FIGS. It is
- each minute portion 50 having a size corresponding to each pixel 51 of the area sensor 5, and the light from each minute portion is divided into each pixel 51 of the area sensor 5.
- a push-broom type hyperspectral camera for example.
- the spectroscopic data (measurement data), which is an electric signal output from each pixel 51 of the area sensor 5, is converted into a digital signal through a current/voltage (IV) conversion circuit and an analog/digital (AD) conversion circuit (not shown) as needed. It is converted and sent to the calculation unit 6 .
- the computing unit 6 uses the transmitted spectral data, the computing unit 6 computes, for example, the peak wavelength, the full width at half maximum, etc., which are characteristic amounts of the LEDs for each of the plurality of LEDs on the object 100 by means of the CPU or the like.
- image data captured by the imaging device 8 is also transmitted to the calculation unit 6 .
- the calculation unit 6 functions as a position analysis means for determining the positional relationship between the characteristic parts of the subject 100 imaged by the imaging device 8 and the minute parts 50 to be spectroscopically measured in the one-dimensional direction. This is repeated each time scanning is performed, and a spectral data map with position information is created for a two-dimensional area, which is the measurement area of the subject 100, or the created data map is managed.
- the measurement result display unit 7 displays the calculation result by the calculation unit 6. Note that the measurement data output from the area sensor 5 and the image data output from the imaging device 8 may be converted into digital signals by the calculation unit 6 .
- the computing unit 6 may be a dedicated device, or may be configured by an information processing device consisting of a personal computer that operates according to a program. Moreover, the measurement data output from the area sensor 5 and processed into digital signals and the image data output from the imaging device 8 and processed into digital signals may be sent to the calculation unit 6 via the network. In this case, even if the computing unit 6 is located away from the measurement location, it is possible to measure the peak wavelength and full width at half maximum of the LED chip, associate the position information, create and manage the spectral data map, etc. can be done.
- Each LED 101 of the object (display) 100 includes red (R), green (G), and blue (B) LEDs, and has a size of 30 ⁇ m square, for example.
- each LED 101 is displayed as a rectangle and arranged vertically and horizontally on the subject 100 which is a display.
- FIG. 5 shows the relationship between the sizes of the plurality of LEDs 101 on the subject 100 and the pixels 51 of the area sensor 5.
- FIG. A rectangular area surrounded by a black frame in FIG. 5 is a light emitting surface of each LED 101 .
- the pixels 51 of the area sensor 5 are also arranged vertically and horizontally in a grid pattern, and a plurality of pixels 51 are positioned with respect to one LED 101, that is, the size of the light emitting surface of one LED 101 corresponds to the pixel
- the arrangement pitch of the LEDs 101, the pitch of the pixels 51 of the area sensor 5, the magnification of the objective lens 2, and the like are set so that the light emitted from the plurality of minute portions can be received by the plurality of pixels 51.
- FIG. 6(A) shows part of the image 40 obtained by the imaging device 8.
- FIG. A horizontal line indicated by a white line in the vertical direction of FIG. 6A indicates an aggregate of a large number of one-dimensional microparts 50 currently being spectroscopically separated by the HSI 9 .
- the imaging device 8 is capable of imaging all or part of a large number of one-dimensional microparts 50 that are currently being spectroscopically separated and their surroundings.
- the optical system may be configured to receive light from only the periphery, and only the periphery may be imaged.
- the part indicated by the gray triangle is the characteristic part 41 on the subject 100 that appears in the image.
- the characteristic portion 41 is a portion that serves as a mark, and although not limited, a portion having a characteristic shape or the like that can be differentiated from other portions such as a power supply point is selected. Further, the feature part 41 may be intentionally arranged at a predetermined position on the subject 100 .
- the calculation unit 6 obtains the positional relationship of each minute part 50 in the one-dimensional direction currently being spectroscopically separated by the HSI 9 with respect to the characteristic part 41 for each micro part 50 to be spectroscopically separated.
- the minute parts 50 to be spectroscopically correspond to the pixels 51 in the one-dimensional direction of the area sensor 5 as described above.
- the coordinates of each minute part 50 in the one-dimensional direction currently being spectroscopically separated are obtained.
- the coordinates of the minute portion 50 shown in black are represented by (xi, yj).
- the light from each minute portion 50 in the one-dimensional direction is divided into respective wavelengths, and the calculation section 6 measures the pixel value (luminance value) of the area sensor for each wavelength of the divided wavelength, and obtains the light of each minute portion 50.
- the measured values (brightness values) of each wavelength are recorded in a memory (not shown) of the computing unit 6 in association with the coordinates.
- each minute portion 50 in the one-dimensional direction when scanned is shifted in the scanning direction from the position in the previous scanning by the scanning amount.
- the position of each minute portion 50 in the one-dimensional direction in the current scan is obtained.
- a data map for each wavelength which is spectral data with position information, is created for the two-dimensional region of the subject 100 .
- the light from multiple minute parts includes not only the case where the light sources are individually arranged in the field of view, but also the case where the whole surface of the sample in the field of view is illuminated by photoexcitation.
- a specific position observed by scanning is associated with the position information.
- the calculation unit 6 uses the created data map to obtain, for example, the peak wavelength, which is the feature quantity of each LED 101 .
- the method of obtaining the peak wavelength is not limited, an example is as follows.
- FIG. 7 shows the maximum brightness among the data of the pixel group in the appropriate area including the light of an arbitrary wavelength, for example, the measurement data of the plurality of LEDs 101, among the light received from the surface of the subject 100.
- 1 schematically shows a light receiving state when the corresponding pixel of the area sensor 5 receives light having a wavelength ⁇ .
- a black frame 21 shown in FIG. 7 indicates a region corresponding to the light emitting surface of one LED 101 .
- the darkened area 22 has high brightness, and the brightness decreases toward the periphery.
- the wavelength ⁇ with the maximum brightness is obtained from the data of the pixel group in the appropriate area that includes the measurement data of the multiple LEDs 101 .
- each pixel 51 is divided into brightness levels, and image processing is performed using a certain brightness level as a threshold, thereby separating the light emitting region for each LED 101 .
- FIG. 8 shows a state in which the measurement data for each pixel 51 is separated for each LED 101 . In FIG. 8, it is separated into nine light-emitting regions 23a to 23i indicated by black frames.
- a pixel (pixel of interest) that has obtained the maximum brightness (luminance value) in the measurement data is specified.
- spectral data for a pixel of interest specified in the light emitting region 23a is indicated by black dots in the graph of FIG.
- the horizontal axis of the graph in FIG. 9 represents wavelength
- the vertical axis represents brightness.
- a fitting curve indicated by a solid line is obtained by Gaussian fitting or the like, and the wavelength of the peak value of the fitting curve is defined as the peak wavelength. If the wavelength pitch is small or the like, the wavelength of the largest value in the spectrum data may be used as the peak wavelength without fitting.
- the average value of brightness may be obtained for each wavelength in a plurality of pixels including the pixel of interest and its surrounding pixels, and the average value may be used as the spectrum data.
- the calculation unit 6 records and manages the obtained peak wavelength together with the positional information of the minute portion 50 corresponding to the pixel of interest. Also, the peak wavelength may be recorded in association with the positional information indicating the specified light emitting region of the LED 101 . For example, when a rectangular light-emitting region is specified, as the light-emitting region 23a is representatively shown in FIG. good.
- spectral data and/or feature amounts based on the spectral data are managed by the calculation unit 6 for each of the light emitting regions 23a to 23i.
- the measurement object 100 or the two-dimensional spectroscopic device By moving at least one of 1, the measurement region 110 is moved to the next measurement site, measurement is performed, and this is repeated in order. Even when moving to a new measurement area 110, the position of each micro-part 50 is obtained and obtained with respect to the characteristic point 41 of the subject 100 obtained by the imaging device 8 used in the measurement in the previous measurement area. Positions are recorded in association with spectral data and peak wavelengths.
- the direction of movement of the measurement area 11 is indicated by solid-line arrows and broken-line arrows, and the measurement area 110 is moved from left to right and from top to bottom in order.
- the size of the measurement area 110 at one time is 2.8 mm in length and width
- the measurement is performed by moving the measurement area 110 1000 times
- the position information and the peak wavelength at the time of measurement are associated with each other and recorded in a memory
- the wafer is irradiated with the excitation light source 11 as described above.
- a plurality of LED chips included in the object (wafer) 100 are excited at once by the irradiation of the excitation light to emit light, and the light emitted from a minute portion of the light emitting surface of each LED chip and dispersed by the spectroscopic section 3 is spread over an area.
- Light is received by a plurality of pixels 51 of the sensor 5 divided into a plurality of wavelengths.
- the spectral data obtained by light reception, the peak wavelength of each LED chip, and the positional information of the minute part 50 of the subject 100 and the light emitting region are associated with each other, and the creation of the data map with the positional information of the spectral data and the peak wavelength, etc. Since it is the same as the case where the subject 100 is the display, the description is omitted.
- the light from a plurality of minute parts 50 in the one-dimensional direction of the subject 100 that has passed through the objective lens 2 is dispersed to obtain spectral data, and scanning is performed in a direction perpendicular to the one-dimensional direction.
- it is arranged on the optical axis 2a of the objective lens 2, and at least the peripheral portion of each minute portion 50 in the one-dimensional direction can be obtained. Since the imaging device 8 capable of imaging is provided, the peripheral portion of each minute part 50 in the one-dimensional direction, which is the acquisition area of the spectral data of the subject 100, can be observed by the imaging device 8 simultaneously with the acquisition of the spectral data. can be done.
- the positional relationship between the characteristic part 41 of the object 100 imaged by the imaging device 8 and each minute part 50 in the one-dimensional direction is obtained, and each time the two-dimensional spectroscopic means is scanned in the direction perpendicular to the one-dimensional direction, scanning is performed.
- the positional relationship between the feature points of the object and the one-dimensional microparts is obtained by taking into account the quantity, and the obtained positional relationship and the spectral data and/or the feature amount based on the spectral data are recorded in association with each other.
- a data map with position information can be created for a two-dimensional area.
- spectral data of the subject 100 such as a display having a plurality of light emitting elements 101 (light emitting regions 23a to 23i) and/or feature amounts based on the spectral data can be managed for each light emitting region.
- the two-dimensional spectroscopic apparatus 1 observes the peripheral portion of each minute region 50 in the one-dimensional direction, which is the acquisition area of the spectroscopic data of the subject 100, with the imaging device 8 simultaneously with the acquisition of the spectroscopic data. It can also be used as an observation system capable of creating a data map with position information for a two-dimensional area of the subject 100 . In addition, it can also be used as a management system capable of managing the spectral data of the object 100 and/or the feature amount based on the spectral data for each light emitting area.
- the present invention can be used to measure the peak wavelengths of light emitting elements in subjects such as displays having a large number of light emitting elements and wafers having a large number of light emitting element chips.
- spectroscopic device 1 two-dimensional spectroscopic device 2 objective lens 2a optical axis 3 spectroscopic unit 4 imaging lens 5 area sensor 51 pixels 6 arithmetic unit 7 measurement result display unit 8 imaging device 9 hyperspectral image system 10 reflector 11 light source for excitation 20 cylinder 40 image of imaging device 41 feature amount 50 minute part 100 subject 101 light emitting element (LED) 200 table 300 moving device
- LED light emitting element
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
(1)対物レンズを通過した被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記対物レンズの光軸上に配置され、前記一次元方向の各微小部位の少なくとも周辺部を撮像可能な撮像手段と、
を備えた二次元分光装置。
(2)前記二次元分光手段と撮像手段のフォーカス位置が同等である前項1に記載の二次元分光装置。
(3)前記一次元方向と垂直な方向への走査は、被写体または二次元分光装置の少なくとも一方を前記一次元方向と垂直方向に移動させることにより行われる前項1または2に記載の二次元分光装置。
(4)前記撮像手段は、前記被写体の一次元方向の各微小部位を除く周辺部のみを撮像する前項1~3のいずれかに記載の二次元分光装置。
(5)前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段を備えている前項1~4のいずれかに記載の二次元分光装置。
(6)前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する前項5に記載の二次元分光装置。
(7)前記二次元分光手段で受光される被写体からの光は、励起光源の照射により被写体が励起されて発光した光である前項1~6のいずれかに記載の二次元分光装置。
(8)前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理手段を備えている前項1~7のいずれかに記載の二次元分光装置。
(9)対物レンズを通過した被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記対物レンズの光軸上に配置され、前記一次元方向の各微小部位の少なくとも周辺部を撮像可能な撮像手段と、
前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段と、
を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する観察システム。
(10)前記二次元分光手段で受光される被写体からの光は、励起光源の照射により被写体が励起されて発光した光である前項9に記載の観察システム。
(11)対物レンズを通過した、複数の発光領域を有する被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段と、
を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成し、
さらに、
前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理手段を備えた管理システム。
(12)前項1~4のいずれかに記載の二次元分光装置における前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の複数の微小部位の位置関係を求める位置解析手段を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する情報処理装置。
(13)前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた特徴量を前記発光領域毎に管理する管理手段を備えている前項12に記載の情報処理装置。
(14)前項1~4のいずれかに記載の二次元分光装置における前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析ステップをコンピュータに実行させ、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析ステップでは、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する処理を前記コンピュータに実行させるためのプログラム。
(15)前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理ステップを前記コンピュータにさらに実行させる前項14に記載のプログラム。
2 対物レンズ
2a 光軸
3 分光部
4 結像レンズ
5 エリアセンサ
51 画素
6 演算部
7 測定結果表示部
8 撮像装置
9 ハイパースペクトルイメージシステム
10 反射鏡
11 励起用の光源
20 筒体
40 撮像装置の画像
41 特徴量
50 微小部位
100 被写体
101 発光素子(LED)
200 テーブル
300 移動装置
Claims (15)
- 対物レンズを通過した被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記対物レンズの光軸上に配置され、前記一次元方向の各微小部位の少なくとも周辺部を撮像可能な撮像手段と、
を備えた二次元分光装置。 - 前記二次元分光手段と撮像手段のフォーカス位置が同等である請求項1に記載の二次元分光装置。
- 前記一次元方向と垂直な方向への走査は、被写体または二次元分光装置の少なくとも一方を前記一次元方向と垂直方向に移動させることにより行われる請求項1または2に記載の二次元分光装置。
- 前記撮像手段は、前記被写体の一次元方向の各微小部位を除く周辺部のみを撮像する請求項1~3のいずれかに記載の二次元分光装置。
- 前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段を備えている請求項1~4のいずれかに記載の二次元分光装置。
- 前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する請求項5に記載の二次元分光装置。
- 前記二次元分光手段で受光される被写体からの光は、励起光源の照射により被写体が励起されて発光した光である請求項1~6のいずれかに記載の二次元分光装置。
- 前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理手段を備えている請求項1~7のいずれかに記載の二次元分光装置。
- 対物レンズを通過した被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記対物レンズの光軸上に配置され、前記一次元方向の各微小部位の少なくとも周辺部を撮像可能な撮像手段と、
前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段と、
を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する観察システム。 - 前記二次元分光手段で受光される被写体からの光は、励起光源の照射により被写体が励起されて発光した光である請求項9に記載の観察システム。
- 対物レンズを通過した、複数の発光領域を有する被写体の一次元方向の複数の微小部位からの光を分光して分光データを取得するとともに、前記一次元方向と垂直な方向への走査により、前記被写体の二次元方向の領域についての分光データを取得する二次元分光手段と、
前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析手段と、
を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成し、
さらに、
前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理手段を備えた管理システム。 - 請求項1~4のいずれかに記載の二次元分光装置における前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の複数の微小部位の位置関係を求める位置解析手段を備え、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析手段は、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する情報処理装置。 - 前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた特徴量を前記発光領域毎に管理する管理手段を備えている請求項12に記載の情報処理装置。
- 請求項1~4のいずれかに記載の二次元分光装置における前記撮像手段で撮像された被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求める位置解析ステップをコンピュータに実行させ、
前記一次元方向と垂直な方向に走査する毎に、前記位置解析ステップでは、走査量を加味して被写体の特徴箇所と前記一次元方向の各微小部位の位置関係を求めるとともに、求めた位置関係と分光データ及び/または分光データに基づいた特徴量を関連付けて記録することにより、被写体の前記二次元方向の領域について位置情報付のデータマップを作成する処理を前記コンピュータに実行させるためのプログラム。 - 前記被写体は複数の発光領域を有しており、前記分光データ及び/または分光データに基づいた前記特徴量を前記発光領域毎に管理する管理ステップを前記コンピュータにさらに実行させる請求項14に記載のプログラム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247003514A KR20240026229A (ko) | 2021-07-30 | 2022-07-25 | 이차원 분광 장치, 관찰 시스템, 관리 시스템, 정보 처리 장치 및 프로그램 |
JP2023538511A JPWO2023008361A1 (ja) | 2021-07-30 | 2022-07-25 | |
CN202280051865.3A CN117716216A (zh) | 2021-07-30 | 2022-07-25 | 二维分光装置、观察系统、管理系统、信息处理装置以及程序 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-125109 | 2021-07-30 | ||
JP2021125109 | 2021-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023008361A1 true WO2023008361A1 (ja) | 2023-02-02 |
Family
ID=85086933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/028593 WO2023008361A1 (ja) | 2021-07-30 | 2022-07-25 | 二次元分光装置、観察システム、管理システム、情報処理装置及びプログラム |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPWO2023008361A1 (ja) |
KR (1) | KR20240026229A (ja) |
CN (1) | CN117716216A (ja) |
WO (1) | WO2023008361A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011089895A (ja) * | 2009-10-22 | 2011-05-06 | Arata Satori | ハイパースペクトル撮像装置及びハイパースペクトル撮像方法 |
JP2011164022A (ja) * | 2010-02-12 | 2011-08-25 | Sony Corp | 分光測定装置及び分光測定方法 |
JP2016090576A (ja) * | 2014-10-29 | 2016-05-23 | パナソニックIpマネジメント株式会社 | 撮像装置、分光システム、および分光方法 |
WO2020154152A1 (en) * | 2019-01-24 | 2020-07-30 | Kla Corporation | Methods and systems for co-located metrology |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06319080A (ja) | 1993-05-10 | 1994-11-15 | Mitsubishi Electric Corp | プッシュブルーム走査型撮像装置 |
-
2022
- 2022-07-25 WO PCT/JP2022/028593 patent/WO2023008361A1/ja active Application Filing
- 2022-07-25 JP JP2023538511A patent/JPWO2023008361A1/ja active Pending
- 2022-07-25 CN CN202280051865.3A patent/CN117716216A/zh active Pending
- 2022-07-25 KR KR1020247003514A patent/KR20240026229A/ko unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011089895A (ja) * | 2009-10-22 | 2011-05-06 | Arata Satori | ハイパースペクトル撮像装置及びハイパースペクトル撮像方法 |
JP2011164022A (ja) * | 2010-02-12 | 2011-08-25 | Sony Corp | 分光測定装置及び分光測定方法 |
JP2016090576A (ja) * | 2014-10-29 | 2016-05-23 | パナソニックIpマネジメント株式会社 | 撮像装置、分光システム、および分光方法 |
WO2020154152A1 (en) * | 2019-01-24 | 2020-07-30 | Kla Corporation | Methods and systems for co-located metrology |
Also Published As
Publication number | Publication date |
---|---|
JPWO2023008361A1 (ja) | 2023-02-02 |
KR20240026229A (ko) | 2024-02-27 |
CN117716216A (zh) | 2024-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5269879B2 (ja) | サンプル表面を検査する分光画像形成方法及びシステム | |
JP3576523B2 (ja) | 蛍光輝度測定方法及び装置 | |
WO2019230878A1 (ja) | 蛍光観察装置及び蛍光観察方法 | |
US9804376B2 (en) | Scanner with increased dynamic range | |
US11269171B2 (en) | Spectrally-resolved scanning microscope | |
US20080031509A1 (en) | Apparatus and method for measuring the height profile of a structured substrate | |
US11231323B2 (en) | Time-resolved hyper-spectral single-pixel imaging | |
US11106026B2 (en) | Scanning microscope for 3D imaging using MSIA | |
JP2021193459A (ja) | 二重光学経路および単一撮像センサを使用した低解像度スライド撮像、スライドラベル撮像および高解像度スライド撮像 | |
TW202140995A (zh) | 表面輪廓測量系統 | |
WO2020082264A1 (zh) | 基于高光谱光学传感器的涂层区域定位方法和装置、及除胶系统 | |
WO2021019597A1 (ja) | 核酸分析装置及び方法 | |
WO2023008361A1 (ja) | 二次元分光装置、観察システム、管理システム、情報処理装置及びプログラム | |
KR101861919B1 (ko) | 반도체의 고속 광학 검사방법 | |
JP2008065331A (ja) | 共焦点電気発光分光顕微鏡 | |
TWM596869U (zh) | 用於大面積顯微光致螢光掃描與側繪量測的系統 | |
WO2024057889A1 (ja) | 波長測定装置、データ処理装置、波長測定方法及びプログラム | |
KR100998015B1 (ko) | 발광소자의 전류분산을 평가하는 방법 및 이를 이용한 평가시스템 | |
JP2007322209A (ja) | 外観検査装置及び外観検査方法 | |
JP5541646B2 (ja) | ライン照明装置 | |
JP7424074B2 (ja) | 三次元形状計測装置、三次元形状計測方法及びプログラム | |
JP2018132390A (ja) | 膜厚測定方法および膜厚測定装置 | |
JP2024073922A (ja) | 表面検査装置及び表面検査方法 | |
CN117651850A (zh) | 波长测量装置以及波长测量方法 | |
KR100371560B1 (ko) | 유전자 판독기 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22849422 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023538511 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280051865.3 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20247003514 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22849422 Country of ref document: EP Kind code of ref document: A1 |