WO2023058784A1 - 데미지층의 깊이 및 데미지층 내의 결함의 농도를 측정하는 방법 및 상기 방법을 수행하는 시스템 - Google Patents
데미지층의 깊이 및 데미지층 내의 결함의 농도를 측정하는 방법 및 상기 방법을 수행하는 시스템 Download PDFInfo
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- WO2023058784A1 WO2023058784A1 PCT/KR2021/013634 KR2021013634W WO2023058784A1 WO 2023058784 A1 WO2023058784 A1 WO 2023058784A1 KR 2021013634 W KR2021013634 W KR 2021013634W WO 2023058784 A1 WO2023058784 A1 WO 2023058784A1
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- light
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- damage layer
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- defects
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- 230000007547 defect Effects 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000035515 penetration Effects 0.000 claims abstract description 65
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000001678 irradiating effect Effects 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000004627 transmission electron microscopy Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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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
- G01N21/956—Inspecting patterns on the surface of objects
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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
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
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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
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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
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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
- G01N21/9501—Semiconductor wafers
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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
- G01N21/9501—Semiconductor wafers
- G01N21/9505—Wafer internal defects, e.g. microcracks
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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
Definitions
- the present application relates to a method for measuring the depth of a damage layer and the concentration of defects within the damage layer and a system for performing the method.
- the thickness of the wafer is reduced by grinding the rear surface of the wafer.
- An object to be solved by the present application is to provide a method for determining the depth of the damage layer using the density of defects according to the wavelength of light irradiated on the damage layer.
- a method for determining the depth of a damage layer formed on a rear surface of a substrate includes irradiating a first light and a second light into the damage layer; detecting the first light and the second light reflected or scattered by defects in the damage layer; determining a first penetration depth of the first light and a second penetration depth of the second light based on the first wavelength of the first light and the second wavelength of the second light; and determining a depth of the damage layer using the first penetration depth and the second penetration depth.
- the first penetration depth may be greater than the second penetration depth
- the second penetration depth is set as the depth of the damage layer.
- Determining the depth of the damage layer may include determining the second penetration depth of the damage layer when the number or concentration of defects for the first penetration depth is equal to the number or concentration of defects for the second penetration depth. depth can be determined.
- the method may include determining the number or concentration of defects present in a first region corresponding to the first penetration depth using the detected first light; determining the number or concentration of defects present in a second area corresponding to the second penetration depth by using the detected second light; and defects present in a third region not included in the second region among the first region, using the number or concentration of defects present in the first region and the number or concentration of defects present in the second region. It may further include the step of determining the number or concentration of.
- the method may include determining a concentration of defects in the first region using the number or concentration of defects present in the first region; determining a concentration of defects in the second region using the number or concentration of defects present in the second region; and determining the concentration of defects in the third region using the number or concentration of defects present in the third region.
- the first light and the second light are simultaneously irradiated to the damage layer, and the first light and the second light are dispersed from white light. may correspond to light.
- the first light and the second light may be sequentially irradiated.
- the substrate may be a silicon substrate.
- a measurement system for determining the depth of a damage layer formed on a rear surface of a substrate includes a light irradiator for irradiating first and second light into the damage layer; an optical detector for detecting the first light and the second light reflected or scattered by defects in the damage layer; and a determining device receiving information on the first light and information on the second light from the photodetector, wherein the determining device determines a first wavelength of the first light and a second wavelength of the second light. Based on this, a first penetration depth of the first light and a second penetration depth of the second light may be determined, and the depth of the damage layer may be determined using the first penetration depth and the second penetration depth.
- the depth of the damage layer can be obtained in a non-destructive manner by determining the depth of the damage layer using the concentration of defects according to the wavelength of light irradiated to the damage layer.
- Figure 1 shows a measurement system for measuring the depth of the damage layer and the concentration of defects in the damage layer according to an embodiment of the present application.
- FIG. 2 is a block diagram conceptually illustrating a function of a determination device for determining a depth of a damage layer and a concentration of defects in the damage layer according to an embodiment of the present disclosure.
- Figure 4 shows a method of determining the depth of the damage layer according to an embodiment of the present application.
- FIG. 5 illustrates a method of measuring the depth of a damage layer and the concentration of defects in the damage layer when a light irradiator irradiates a plurality of lights having different wavelengths according to an embodiment of the present disclosure.
- Figure 6 shows a method of measuring the depth of the damage layer and the concentration of defects in the damage layer when the light irradiator irradiates one light having different wavelengths according to another embodiment of the present application.
- FIG. 7 is a flowchart illustrating a method of measuring the depth of a damage layer and the concentration of defects in the damage layer according to an embodiment of the present disclosure.
- Figure 1 shows a measurement system for measuring the depth of the damage layer and the concentration of defects in the damage layer according to an embodiment of the present application.
- the measurement system 10 may include a substrate 110 , a damage layer 120 , a light irradiator 200 and a light detector 300 .
- the substrate 110 may be configured to mount various types of components.
- the substrate 110 may be a silicon substrate.
- the silicon substrate In the silicon substrate, infrared light is completely transmitted, and the silicon substrate has a property that the light absorption rate increases as the wavelength of light decreases and the penetration depth decreases. Accordingly, light in the vicinity of visible light is partially absorbed in the thin film of the silicon substrate (about the depth of the damage layer or the Si thickness of the wafer), but partially penetrates to a certain depth.
- the substrate 110 may include an upper surface 111 on which electronic devices (not shown) may be mounted/attached and a rear surface 112 that is opposite to the upper surface 111 .
- the damage layer 120 is configured to prevent/mitigate the penetration of foreign substances (particularly, metal ions such as copper) into the substrate 110, and the damage layer 120 is formed on the substrate 110 by grinding. ) from the rear surface 112 of it may be formed therein.
- the depth (t) of the damage layer 120 may be 1 micron or more and 30 microns or less.
- the light irradiator 200 is directed to the rear surface of the damage layer 120 in order to measure the depth of the damage layer 120 and the degree of distribution for each depth of the defect 121 in the damage layer 120 (ie, concentration for each depth).
- Light (B) may be irradiated.
- the defect 121 may include a point defect, a line defect, and a plane defect.
- the light B irradiated by the light irradiator 200 includes, but is not limited to, white light, LED, blue laser, green laser, and red laser. That is, the light B irradiated by the light irradiator 200 may be a type of light suitable for measuring the depth of the damage layer 120 and the concentration of defects 121 in the damage layer 120 .
- the light (B) in the present specification may include not only visible light, but also light of near-infrared and near-ultraviolet wavelengths.
- the photodetector 300 Reflected or scattered light can be detected.
- the photodetector 300 may include a phototube to detect reflected or scattered light. Depending on the embodiment, in order to detect lights of various wavelengths (or wavelength ranges, hereinafter referred to as 'wavelengths'), the photodetector 300 may include a plurality of phototubes, or the measurement system 10 may include one or more phototubes. One or more photodetectors 300 including phototubes may be included.
- the light B detected by the photodetector 300 is the defect in the damage layer 120. It may include information about the number of 121, the depth of the damage layer 120, and/or the depth through which the light B penetrates the damage layer 120.
- the determination device may analyze the detected light B to determine the concentration of the defect 121 and the depth of the damage layer 120 according to the penetration depth of the light B.
- the penetration depth means the depth through which the light B is transmitted, and may be calculated based on the surface of the damage layer 120 (surface opposite to the surface in contact with the substrate 110).
- the absorption depth of the light B may be different for each wavelength of the light B, and more specifically, the longer the wavelength of the light B, the deeper the absorption depth of the light B may be.
- the absorption depth of red light having a wavelength of 630-780 nm is 350-1000um
- the absorption depth of green light having a wavelength of 495-570 nm is 90-200um
- the absorption depth of blue light having a wavelength of 450-495 nm is 40 It may be ⁇ 90um, but is not limited thereto.
- the absorption depth refers to the light (B) irradiated by the light irradiator 200 is absorbed by the damage layer 120 as it passes through the damage layer 120 of a specific depth, and the intensity of the light (B) It may mean the depth when it becomes 36% (ie, 1/e) of the initial intensity.
- the light (B) transmitted by the absorption depth is reflected or scattered by the defect 121 in the damage layer 120 and detected by the photodetector 300
- the maximum depth detectable by the photodetector 300 is described based on 1 absorption depth, but is not limited thereto. That is, according to embodiments, the maximum depth detectable by the photodetector 300 may have a value other than 1 absorption depth.
- the determination device (400 in FIG. 2 ) may analyze a plurality of lights having different wavelengths to determine the degree of distribution of the defect 121 for each depth of the damage layer 120 .
- FIG. 2 is a block diagram conceptually illustrating a function of a determination device for determining a depth of a damage layer and a concentration of defects in the damage layer according to an embodiment of the present disclosure.
- the determination device 400 may include a defect number determining unit 410, a penetration depth determining unit 420, a defect concentration determining unit 430, and a damage layer depth determining unit 440.
- the defect number determining unit 410, the penetration depth determining unit 420, the defect concentration determining unit 430, and the damage layer depth determining unit 440 shown in FIG. 2 are used to easily explain the functions of the determining device 400. Functions performed by the decision device 400 are conceptually divided, but are not limited thereto. According to embodiments, functions of the defect number determining unit 410, the penetration depth determining unit 420, the defect concentration determining unit 430, and the damage layer depth determining unit 440 can be merged/separated, and a single program It may be implemented as a series of instructions included in .
- the defect number determination unit 410 uses the information on the light B received from the photodetector 300 to determine the damage layer 120 detected at a predetermined position and range R where the light B is irradiated. The number or concentration of defects within can be determined.
- the number or concentration of defects in the damage layer 120 may be determined according to the wavelength of light B. That is, even if the light B is irradiated at the same location and range, when the wavelength of the irradiated light B is different, the number or concentration of detected defects may be different.
- the penetration depth determiner 420 may determine the penetration depth of the light B at a predetermined location and range based on the wavelength of the light B.
- the defect concentration determining unit 430 may determine the defect concentration in the damage layer 120 at a predetermined location, range, and depth using information on a plurality of lights having different wavelengths.
- the damage layer depth determiner 440 may determine the depth of the damage layer 120 using the number of distribution degrees of defects according to the penetration depth of light.
- the defect concentration of the damage layer 120 determined by the defect concentration determination unit 430 may be represented as a graph for the depth of the damage layer 120 .
- the damage layer depth determining unit 440 may determine the depth of the damage layer 130 according to the trend of change in the graph. That is, the damage layer depth determiner 440 may estimate the depth of the damage layer 120 from the concentration of the defects 121 based on a graph of the defect concentration and the depth of the damage layer 120 .
- the concentration of the defects 121 determined by the defect concentration determining unit 430 is less than a preset lower limit value, the value is determined to be noise and may not be used to estimate the depth of the damage layer 120 .
- the damage layer ( 120) can increase the accuracy of estimation.
- the damage layer depth determining unit 440 may determine a depth at which defects are found as the damage layer according to the determination of the defect concentration determining unit 430 .
- Figure 3 (a) shows a cross-sectional view of the damage layer 120 when viewed from the side
- Figure 3 (b) is a damage layer 120 when viewed from above shows a cross section.
- the photodetector 300 may detect red light (B_R), green light (B_G), and blue light (B_B) reflected or scattered by the defect 121 in the damage layer 120 .
- a predetermined range R in which the light irradiator 200 irradiates light is expressed as a circle, but is not limited thereto. That is, the predetermined range R in which light is irradiated may vary according to embodiments. In addition, the range R of irradiating light may be changed according to embodiments.
- the defect number determiner 410 determines the number of blue light (B_B) It is possible to determine the number of defects 121 (eg, one) for a penetration depth PD_B of .
- the defect number determiner 410 determines the penetration depth (PD_G) of the green light (B_G).
- the number of defects 121 for example, 3
- the number of defects is determined.
- the unit 410 may determine the number of defects 121 (eg, 6) for the penetration depth PD_R of the red light B_R.
- the penetration depth (PD_R) of the red light (B_R) is greater than the penetration depth (PD_G) of the green light (B_G). Deep, and the penetration depth PD_G of the green light B_G may be greater than the penetration depth PD_B of the blue light B_B.
- the number of defects 121 (eg, 3) at the penetration depth PD_G of green light B_G is the number of defects 121 at the penetration depth PD_B of blue light B_B (eg, 3).
- the defect 121 at the penetration depth PD_B of blue light B_B in the number of defects 121 at penetration depth PD_G of green light B_G (e.g., three)
- a value obtained by subtracting the number (eg, 1) of (eg, 2) is determined as the number or concentration of defects in the second area A2, and the number or concentration of defects in the first area A1 (eg, 2) is determined.
- 1) may be determined as the number (eg, 1) of the defects 121 of the blue light B_B having the penetration depth PD_B corresponding to the first area A1.
- the number of defects 121 (for example, 6) at the penetration depth PD_R of the red light B_R is the number of defects 121 at the penetration depth PD_G of the green light B_G ( For example, 3)
- the number of defects 121 (for example, 6) at the penetration depth PD_R of red light B_R at the penetration depth PD_G of green light B_G ( 121) may be determined as the number or concentration of defects in the third area A3 by subtracting the number of defects (eg, three).
- the number of defects 121 in each of the first area A1, the second area A2, and the third area A3 can be determined, and the volume and number of defects 121 in each area can be determined.
- the defect concentration in each region can be determined according to the correlation of .
- the number or concentration of defects in a more subdivided area can be known, and the location where the light irradiator 200 irradiates light (x, When the same process is performed while moving y), the number of defects 121 for the entire damage layer 120, the defect concentration, and the depth of the damage layer can be known.
- FIG. 5 illustrates a method of measuring the depth of a damage layer and the concentration of defects in the damage layer when a light irradiator irradiates a plurality of lights having different wavelengths according to an embodiment of the present disclosure.
- the light irradiator 200 irradiates light having different wavelengths to the damage layer 120
- the photodetector 300 irradiates the surface of the damage layer 120 or Light reflected or scattered by the internal defect 121 may be detected.
- the light irradiator 200 may sequentially irradiate light having different wavelengths to the damage layer 120 .
- the light irradiator 200 may emit blue light B_B at a first time point, and may emit red light B_B at a second time point after the first time point.
- one light irradiator 200 is illustrated as sequentially irradiating lights having different wavelengths, but is not limited thereto. That is, according to the embodiment, each of the two or more light irradiators 200 may emit light having a different wavelength.
- the photodetector 300 may sequentially detect blue light B_B and red light B_R reflected or scattered by the defect 121 .
- the two photodetectors 300 are illustrated as detecting blue light (B_B) and red light (B_R), respectively, but are not limited thereto. That is, according to embodiments, one photodetector 300 including one or more phototubes may detect both blue light B_B and red light B_R.
- the determination device 400 determines the received blue light (B_B) as described with reference to FIG. 2 .
- the number of defects in the damage layer 120, the concentration of the defects, and the depth of the damage layer 120 may be determined using the information about and the information about the red light B_R.
- Figure 6 shows a method of measuring the depth of the damage layer and the concentration of defects in the damage layer when the light irradiator irradiates one light having different wavelengths according to another embodiment of the present application.
- the light irradiator 200' irradiates one light (eg, white light) dispersible into a plurality of lights having different wavelengths to the damage layer 120, and 300 may detect light reflected or scattered by the defect 121 on the surface or inside of the damage layer 120 .
- one light eg, white light
- the photodetector 300 may detect blue light B_B and red light B_R reflected or scattered by the defect 121 .
- one photodetector 300 including a plurality of phototubes is illustrated as detecting all of blue light (B_B), green light (B_G), and red light (B_R), but is not limited thereto. That is, according to embodiments, the measurement system 10' may include a plurality of photodetectors 300, and each of the plurality of photodetectors 300 may detect one light.
- the determination device 400 determines the received blue light B_B as described in FIG. 2 .
- the number of defects in the damage layer 120, the concentration of the defects, and the depth of the damage layer 120 may be determined using the information and the information about the red light B_R.
- FIG. 7 is a flowchart illustrating a method of measuring the depth of a damage layer and the concentration of defects in the damage layer according to an embodiment of the present disclosure.
- the defect number determining unit 410 irradiates light B using the information on light B.
- the number or concentration of defects in the damage layer 120 detected at a predetermined location and range may be determined (S720).
- the penetration depth determiner 420 may determine the penetration depth of the light B based on the wavelength of the light B (S730).
- the defect concentration determination unit 430 may determine the defect concentration in the damage layer 120 at a predetermined location, range, and depth using a plurality of lights having different wavelengths (S740).
- the damage layer depth determiner 440 may determine the depth of the damage layer 120 using the defect concentration according to the depth of the damage layer 120 determined by the defect concentration determiner 430 (S750).
- Combinations of each block of the block diagrams and each step of the flowcharts attached herein may be performed by computer program instructions. Since these computer program instructions may be loaded into an encoding processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, the instructions executed by the encoding processor of the computer or other programmable data processing equipment are each block or block diagram of the block diagram. Each step in the flow chart creates means for performing the functions described.
- These computer program instructions may also be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular way, such that the computer usable or computer readable memory It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the function described in each block of the block diagram or each step of the flow chart.
- the computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to generate computer or other programmable data processing equipment. It is also possible that the instructions performing the processing equipment provide steps for executing the functions described in each block of the block diagram and each step of the flowchart.
- each block or each step may represent a module, segment or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative embodiments it is possible for the functions recited in blocks or steps to occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially concurrently, or the blocks or steps may sometimes be performed in reverse order depending on their function.
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Abstract
Description
Claims (9)
- 기판의 후면에 형성된 데미지층의 깊이를 결정하는 방법에 있어서,상기 데미지층으로 제1 광 및 상기 제1 광과 파장이 다른 제2 광을 조사하는 단계;상기 데미지층 내의 결함에 의해 반사 또는 산란된 상기 제1 광 및 상기 제2 광을 검출하는 단계;상기 제1 광의 제1 파장 및 상기 제2 광의 제2 파장에 기초하여, 상기 제1 광의 제1 투과 깊이 및 상기 제2 광의 제2 투과 깊이를 결정하는 단계;상기 검출한 제1 광을 이용하여 상기 제1 투과 깊이에 대응하는 제1 영역에 존재하는 결함의 수 또는 농도를 결정하는 단계;상기 검출한 제2 광을 이용하여 상기 제2 투과 깊이에 대응하는 제2 영역에 존재하는 결함의 수 또는 농도를 결정하는 단계;상기 제1 영역에 존재하는 결함의 수 또는 농도와 상기 제2 영역에 존재하는 결함의 수 또는 농도를 이용하여, 상기 제1 영역 중에서 상기 제2 영역에 포함되지 않은 제3 영역에 존재하는 결함의 수 또는 농도를 결정하는 단계; 및상기 제1 영역, 상기 제2 영역 및 상기 제3 영역 각각에 존재하는 결함의 수 또는 농도에 기초하여 상기 데미지층의 깊이를 결정하는 단계를 포함하는데미지층의 깊이를 결정하는 방법.
- 제1 항에 있어서,상기 제1 파장이 상기 제2 파장보다 길 경우, 상기 제1 투과 깊이는 상기 제2 투과 깊이보다 깊은데미지층의 깊이를 결정하는 방법.
- 제2 항에 있어서,상기 데미지층의 깊이를 결정하는 단계는,상기 검출한 제1 광이 나타내는 제1 정보와 상기 검출한 제2 광이 나타내는 제2 정보가 동일한 경우, 상기 제2 투과 깊이를 상기 데미지층의 깊이로 결정하는데미지층의 깊이를 결정하는 방법.
- 제2 항에 있어서,상기 데미지층의 깊이를 결정하는 단계는,상기 제1 투과 깊이에 대한 결함의 수 또는 농도와 상기 제2 투과 깊이에 대한 결함의 수 또는 농도가 동일한 경우, 상기 제2 투과 깊이를 상기 데미지층의 깊이로 결정하는데미지층의 깊이를 결정하는 방법.
- 제1 항에 있어서,상기 제1 영역에 존재하는 결함의 수 또는 농도를 이용하여 상기 제1 영역에서의 결함의 농도를 결정하는 단계;상기 제2 영역에 존재하는 결함의 수 또는 농도를 이용하여 상기 제2 영역에서의 결함의 농도를 결정하는 단계; 및상기 제3 영역에 존재하는 결함의 수 또는 농도를 이용하여 상기 제3 영역에서의 결함의 농도를 결정하는 단계를 더 포함하는데미지층의 깊이를 결정하는 방법.
- 제1 항에 있어서,상기 제1 광 및 제2 광을 조사하는 단계는,상기 데미지층으로 상기 제1 광과 상기 제2 광을 동시에 조사하고,상기 제1 광과 상기 제2 광은 백색광(white light)으로부터 분산된 광에 해당하는데미지층의 깊이를 결정하는 방법.
- 제1 항에 있어서,상기 제1 광 및 제2 광을 조사하는 단계는,상기 제1 광과 상기 제2 광을 순차적으로 조사하는데미지층의 깊이를 결정하는 방법.
- 제1 항에 있어서,상기 기판은 실리콘 기판인데미지층의 깊이를 결정하는 방법.
- 기판의 후면에 형성된 데미지층의 깊이를 결정하는 측정 시스템에 있어서,상기 데미지층으로 제1 광 및 상기 제1 광과 파장이 다른 제2 광을 조사하는 광 조사기;상기 데미지층 내의 결함에 의해 반사 또는 산란된 상기 제1 광 및 상기 제2 광을 검출하는 광 검출기; 및상기 광 검출기로부터 상기 제1 광에 대한 정보 및 상기 제2 광에 대한 정보를 수신하는 결정 장치를 포함하고,상기 결정 장치는,상기 제1 광의 제1 파장 및 상기 제2 광의 제2 파장에 기초하여, 상기 제1 광의 제1 투과 깊이 및 상기 제2 광의 제2 투과 깊이를 결정하고,상기 검출한 제1 광을 이용하여 상기 제1 투과 깊이에 대응하는 제1 영역에 존재하는 결함의 수 또는 농도를 결정하고,상기 검출한 제2 광을 이용하여 상기 제2 투과 깊이에 대응하는 제2 영역에 존재하는 결함의 수 또는 농도를 결정하고,상기 제1 영역에 존재하는 결함의 수 또는 농도와 상기 제2 영역에 존재하는 결함의 수 또는 농도를 이용하여, 상기 제1 영역 중에서 상기 제2 영역에 포함되지 않은 제3 영역에 존재하는 결함의 수 또는 농도를 결정하고,상기 제1 영역, 상기 제2 영역 및 상기 제3 영역 각각에 존재하는 결함의 수 또는 농도에 기초하여 상기 데미지층의 깊이를 결정하는측정 시스템.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070065732A (ko) * | 2005-12-20 | 2007-06-25 | 주식회사 실트론 | 웨이퍼의 표면 손상 평가를 위한 최적 조건 도출 방법,전처리 방법 및 이를 이용한 웨이퍼의 표면 손상 평가 방법 |
WO2016002624A1 (ja) * | 2014-06-30 | 2016-01-07 | 住友化学株式会社 | 検出装置、検出方法、処理装置および処理方法 |
KR101606093B1 (ko) * | 2015-06-26 | 2016-03-24 | 주식회사 넥서스원 | 기판 결함 검사장치 및 방법 |
JP2016531313A (ja) * | 2013-07-09 | 2016-10-06 | ヘレウス・クアルツグラース・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディット・ゲゼルシャフトHeraeus Quarzglas GmbH & Co. KG | Euvリソグラフィ用チタンドープシリカガラスのミラー基板ブランクの製造方法及びブランク中の欠陥の位置を決定するためのシステム |
KR20190062189A (ko) * | 2017-11-28 | 2019-06-05 | 주식회사 고영테크놀러지 | 기판 검사 장치 및 기판 검사 방법 |
KR102320506B1 (ko) * | 2020-07-22 | 2021-11-03 | 이화다이아몬드공업 주식회사 | 데미지층의 깊이 및 데미지층 내의 결함의 농도를 측정하는 방법 및 상기 방법을 수행하는 시스템 |
-
2021
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070065732A (ko) * | 2005-12-20 | 2007-06-25 | 주식회사 실트론 | 웨이퍼의 표면 손상 평가를 위한 최적 조건 도출 방법,전처리 방법 및 이를 이용한 웨이퍼의 표면 손상 평가 방법 |
JP2016531313A (ja) * | 2013-07-09 | 2016-10-06 | ヘレウス・クアルツグラース・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディット・ゲゼルシャフトHeraeus Quarzglas GmbH & Co. KG | Euvリソグラフィ用チタンドープシリカガラスのミラー基板ブランクの製造方法及びブランク中の欠陥の位置を決定するためのシステム |
WO2016002624A1 (ja) * | 2014-06-30 | 2016-01-07 | 住友化学株式会社 | 検出装置、検出方法、処理装置および処理方法 |
KR101606093B1 (ko) * | 2015-06-26 | 2016-03-24 | 주식회사 넥서스원 | 기판 결함 검사장치 및 방법 |
KR20190062189A (ko) * | 2017-11-28 | 2019-06-05 | 주식회사 고영테크놀러지 | 기판 검사 장치 및 기판 검사 방법 |
KR102320506B1 (ko) * | 2020-07-22 | 2021-11-03 | 이화다이아몬드공업 주식회사 | 데미지층의 깊이 및 데미지층 내의 결함의 농도를 측정하는 방법 및 상기 방법을 수행하는 시스템 |
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