WO2007100155A1 - シリコンウェーハ中に存在する原子空孔の定量評価装置および方法 - Google Patents
シリコンウェーハ中に存在する原子空孔の定量評価装置および方法 Download PDFInfo
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- WO2007100155A1 WO2007100155A1 PCT/JP2007/054615 JP2007054615W WO2007100155A1 WO 2007100155 A1 WO2007100155 A1 WO 2007100155A1 JP 2007054615 W JP2007054615 W JP 2007054615W WO 2007100155 A1 WO2007100155 A1 WO 2007100155A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
- G01N29/343—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics pulse waves, e.g. particular sequence of pulses, bursts
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02881—Temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2698—Other discrete objects, e.g. bricks
Definitions
- the present invention relates to the Chiyoklarsky method (CZ method) and float used in the semiconductor industry.
- the present invention relates to an apparatus and a method for quantitatively evaluating atomic vacancies existing in silicon wafers, which can be directly and quantitatively evaluated without estimating by a general method.
- Silicon crystals are considered to be the purest and ideal crystals that humans have. However, due to the existence of an entropy term of free energy, at the melting point of 1412 ° C where the crystal is grown, there is always a disorder of the crystal due to intrinsic point defects (atomic vacancies and interstitial silicon).
- Patent Document 1 a method capable of quantitatively measuring the concentration of vacancies in a silicon crystal wafer without performing an acceleration treatment.
- an external magnetic field is applied to a crystal sample, and the crystal sample is allowed to pass through an ultrasonic wave while being cooled to change the ultrasonic sound velocity change or the ultrasonic absorption change in the crystal sample and cooling the crystal sample.
- Inherent point defect concentration can be obtained based on the amount of steep drop in the curve indicating the relationship with temperature, and since the ultrasonic wave is oscillated and received in the silicon wafer as the test material, silicon on the surface of the er eight, through an adhesive, for example, vibrator consisting of L i N B_ ⁇ 3 is attached.
- Patent Document 1 Japanese Laid-Open Patent Publication No. 7-1 7 4 7 4 2
- the reason for the oscillator to peel off from the silicon wafer surface is that when the oscillator is cooled to a cryogenic temperature of 50K or less, the oscillator contracts, while the silicon wafer expands. A large difference in thermal expansion occurs, which is considered to cause peeling. Disclosure of the invention
- the purpose of the present invention is to produce a thin-film transducer with optimization on the surface of a silicon sample, and to manufacture it by the Tyoklalsky method (CZ method) or the float zone method (FZ method) used in the semiconductor industry.
- CZ method Tyoklalsky method
- FZ method float zone method
- the type of atomic vacancies present in the silicon crystal wafer to be identified can be specified, and the atomic vacancy concentration can be quantitatively evaluated without performing acceleration treatment such as increasing the concentration. Exist in one ha It is an object to provide a quantitative evaluation apparatus and method for atomic vacancies. Means for solving the problem
- the gist of the present invention is as follows.
- Magnetic force generating means for applying an external magnetic field to a silicon sample cut out from a silicon wafer, a temperature control means capable of cooling and controlling the silicon sample in a temperature range of 50K or less, and a silicon sample
- An ultrasonic oscillation and detection means for oscillating an ultrasonic pulse to the surface of the substrate, propagating the oscillated ultrasonic pulse through the silicon sample, and detecting a change in the velocity of the propagated ultrasonic pulse.
- a thin film vibrator having physical properties capable of following the expansion of a silicon sample accompanying a temperature drop in the temperature range and having a C axis substantially aligned in a predetermined direction is directly formed on the surface of the sample. Quantitative evaluation device for atomic vacancies in silicon wafers.
- the detection means includes a reference wave pulse signal obtained by directly measuring the oscillated ultrasonic pulse, and a sample passing wave pulse signal measured after the ultrasonic pulse is propagated through the silicon sample.
- the thin-film transducer has a C-axis inclined at an angle of 5 to 60 ° with respect to the surface of the silicon sample, and the longitudinal and transverse wave components in the ultrasonic waves detected by propagating through the silicon sample.
- the temperature control means has a dilution refrigerator that can be cooled to a cryogenic temperature of 5 mK. Quantitative evaluation of atomic vacancies existing in the silicon wafer according to any one of the above (1) to (9) apparatus.
- Ultrasonic wave generation ⁇ The detection means uses an ultrasonic pulse with a pulse width of 10 s or less, and the atomic vacancy existing in the silicon wafer according to any one of (1) to (10) above Quantitative evaluation device.
- the ultrasonic wave generation and detection means includes means for performing zero detection by changing the oscillation frequency so that the phase difference caused by the change in sound speed due to temperature or magnetic field is constant.
- the quantitative evaluation apparatus for atomic vacancies existing in a silicon wafer according to any one of the above.
- FIG. 1 is a schematic diagram of an apparatus for quantitative evaluation of atomic vacancies according to the present invention.
- FIG. 2 is an enlarged view when the sample holder portion 7 in which the silicon sample 5 is set, which constitutes the quantitative evaluation apparatus 1 is extracted.
- FIG. 3 is a flowchart for explaining a method of detecting a phase difference using an ultrasonic pulse.
- Fig. 4 schematically shows an example of a longitudinal section of a non-doped CZ silicon ingot.
- FIG. 5 is a diagram when the change in elastic constant with respect to the cooling temperature is measured by cooling to 30 K: to 20 mK by the quantitative evaluation method of the present invention.
- Fig. 6 is a longitudinal section of the non-doped CZ silicon ingot used in the example.
- Each existing region (poid region, R-0SF region, Pv region, region) is represented by the Cu decoration method. Used to indicate the boundary line of each region.
- Fig. 7 shows the change in elastic constant with respect to the cooling temperature when the sample (Y-1 and Y-6 to Y-10) is cooled from 30K to 20mK at the six positions shown in Fig. 6 ( ⁇ It is a figure when measuring C L [U1] / C L [U1] ).
- FIG. 8 is a diagram showing the results when the atomic vacancy concentration was calculated for samples Y-1 and Y-6 to Y-10 used in FIG.
- Figure 9 plots an example of the change in the elastic constant when a magnetic field is applied using a ⁇ -free FZ silicon single crystal (top) and a FZ-silicon single crystal doped with ⁇ (bottom).
- FIG. 9 plots an example of the change in the elastic constant when a magnetic field is applied using a ⁇ -free FZ silicon single crystal (top) and a FZ-silicon single crystal doped with ⁇ (bottom).
- Fig. 10 shows an example of the pulse signal applied to the transducer.
- the upper figure shows the case where the pulse width is 0.2 s, and the lower figure shows the case where the pulse width is 12 S.
- Fig. 11 shows the formation of a resonator directly on the wafer 8 by depositing gold (Au) Z zinc oxide (ZnO) / gold (Au) in order to measure the phase at the same time at four locations on one silicon wafer 8 It is the schematic diagram which showed an example when it did.
- Fig. 12 is a plot of the relationship between the inertia constant and temperature of a sample in which an oscillator is formed on the surface of two CZ silicon crystals cut out from the same sample.
- the upper figure shows the surface formed with ZnO as an oscillator.
- the measurement results for the sample are shown below.
- the measurement results for the sample formed on the surface using A1N as the vibrator are shown below.
- FIG. 13 is a diagram plotting the measurement results of the comparative example.
- Fig. 14 shows two FZ silicon crystal specimens cut from the same sample, with the C axis tilted at 40 ° and 80 ° angles to the sample surface to form Z ⁇ , respectively. It is a diagram plotting the measurement results when ultrasonic measurement was performed on each sample material at a resonance frequency of 400 MHz as a sample material.
- FIG. 15 is a graph plotting the results of measuring the change in elastic constant with respect to temperature for a sample in which ZnO is formed on an FZ silicon crystal as a vibrator.
- BEST MODE FOR CARRYING OUT THE INVENTION a quantitative evaluation apparatus for atomic vacancies existing in a silicon wafer according to the present invention will be described with reference to the drawings.
- FIG. 1 is a schematic diagram of a quantitative evaluation apparatus according to the present invention.
- the quantitative evaluation apparatus 1 shown in the figure is mainly composed of a magnetic force generation means 2, a temperature control means 3, and an ultrasonic oscillation / detection means 4.
- the magnetic force generating means 2 is arranged so as to surround the position where the silicon sample 5 is set in order to apply an external magnetic field to the silicon sample 5 obtained by cutting a predetermined part from the silicon wafer.
- An example of the magnetic force generating means 2 is a superconducting magnet.
- the magnetic force generation means 2 detects 0 to 2 in order to detect a change in sound velocity of the ultrasonic pulse propagated in the silicon sample 5 with an external magnetic field applied to the silicon sample 5 as necessary. It is preferably controllable within a range of 0 Tesla, more preferably within a range of 0 to 6 Tesla (see FIG. 9).
- the type of isolated atomic vacancies in the silicon crystal wafer 8 can be specified by applying an external magnetic field, as described later.
- the temperature control means 3 is configured so that the silicon sample 5 can be cooled and controlled to a temperature range of 50K or less.
- FIG. 1 shows the case where a dilution refrigerator is used as the temperature control means 3. In this dilution refrigerator, a mixture of helium 3 and helium 4 is circulated in the mixing chamber 6 appropriately, for example, 4.2K on the upper side of the device and up to 5 mK on the lower side of the device. Cooling to low temperature can be controlled. Note that FIG. 1 shows a configuration in which the sample holder ⁇ with the silicon sample 5 set is immersed in a mixture of helium 3 and helium 4 in the mixing chamber 6 and directly cooled. It is not limited only to the configuration.
- the member that forms the cooled mixing chamber 6 can be made of a material having high thermal conductivity, and the silicon sample 5 can be indirectly cooled using the heat conduction from the member that forms the mixing chamber 6.
- Such a configuration is particularly advantageous in that the temperature range for cooling can be expanded to the high temperature side.
- Ultrasonic oscillation ⁇ Detection means 4 oscillates ultrasonic pulses to the surface of silicon sample 5 Then, the oscillated ultrasonic pulse is propagated through the silicon sample 5 and arranged to detect the change in the sound velocity of the propagated ultrasonic pulse.
- FIG. 2 is an enlarged view of the sample holder portion 7 on which the silicon sample 5 is set, which constitutes the quantitative evaluation apparatus 1 of FIG.
- the surface of the silicon sample 5 prior to setting the silicon sample 5, the surface of the silicon sample 5 has physical properties that can follow the expansion of the silicon sample 5 in a temperature range of 50K or less, and the C axis is aligned in a predetermined direction.
- the thin film vibrator 8 is formed directly or through a gold thin film.
- the ultrasonic oscillation / detection means 4 includes: a reference wave pulse signal obtained by directly measuring the oscillated ultrasonic pulse and measurement after the ultrasonic pulse is propagated through the silicon sample, as shown in FIG. Preferably, it is a means for detecting a phase difference from the sample passing wave pulse.
- the thin film vibrator 8 is preferably made of zinc oxide (ZnO) or aluminum nitride (A 1 N).
- the thin film resonator 8 can be formed on a silicon wafer by physical vapor deposition such as sputtering, where silicon wafer 8 and zinc oxide (ZnO) are closely coupled at the atomic level.
- ZnO zinc oxide
- the thin film vibrator 8 has a C axis inclined at an angle of 5 to 60 ° with respect to the surface of the silicon sample, and at least of the longitudinal wave component and the transverse wave component in the ultrasonic wave detected by propagating through the silicon sample. It is preferable to measure the shear wave component from the viewpoint of increasing the shear component and improving the resolution. When the angle is less than 5 °, the generation of the longitudinal wave component contained in the ultrasonic wave is mostly generated, and the generation efficiency of the transverse wave component is remarkably reduced. When the angle exceeds 60 °, the longitudinal wave ultrasonic wave and the transverse wave ultrasonic wave are generated. This is because the generation efficiency of both is significantly reduced.
- the angle of the C axis is more preferably in the range of 40 to 50 ° from the viewpoint of improving the generation efficiency of both longitudinal and transverse ultrasonic waves in a balanced manner.
- Figure 14 shows a sample of two FZ specimens cut from the same sample with ZnO formed by tilting the C-axis with respect to the specimen surface at angles of 40 ° and 80 °, respectively. As a material, the ultrasonic measurement was performed on each sample material at a resonance frequency of 400 MHz. From the results shown in Fig.
- the thin film vibrator 8 in which the C axis is inclined at a predetermined angle for example, a method in which a silicon sample is arranged obliquely with respect to a ZnO target can be mentioned.
- the thickness of the thin film vibrator 8 is preferably in the range of 0.5 to 200 m in that a measurable ultrasonic wave can be generated. If the thickness exceeds 200 ⁇ m, the measurement accuracy tends to decrease, and if the thickness is less than 0.5 m, high-frequency electrical measurement tends to be difficult.
- the resonance frequency of the thin film vibrator 8 is preferably in the range of 10 MHz to 10 GHz from the viewpoint that ultrasonic measurement can be applied. If the resonance frequency is higher than 10 GHz, high frequency electrical measurement tends to be difficult, and if the thickness is less than 10 MHz, This is because the measurement accuracy tends to decrease.
- the ultrasonic wave generation / detection means 4 uses an ultrasonic pulse having a pulse width of 10 S or less because the sound speed of a silicon sample having a thickness of 10 mm or less can be measured. This is because when the pulse width is wider than 10 s, it tends to be difficult to distinguish between adjacent pulses.
- Fig. 10 shows an example when the pulse width is 0.2 s in the upper diagram and the pulse width is 12 S in the lower diagram.
- the ultrasonic wave generation / detection means 4 includes means for performing zero detection by changing the oscillation frequency so that the phase difference caused by the change in sound velocity due to temperature or magnetic field becomes constant.
- the quantitative evaluation apparatus 1 of the present invention can simultaneously measure the phase difference of a plurality of silicon samples and a plurality of points of one silicon sample.
- Fig. 1 1 shows gold (Au) / zinc oxide (ZnO) / gold (A u) in order to measure the phase at the same time for multiple points (4 locations in Fig. 11).
- An example is shown when a vibrator is formed directly on a wafer by vapor deposition.
- Figure 4 shows a prototype of an undoped CZ silicon ingot with a diameter of 6 inches and a schematic vertical cross section: T.
- the silicon samples (A) and (B) were cut into 4 mm X 4 mm X 7 mm from the P v area and Pi area, which are intrinsic point defect areas, respectively, and the quantitative evaluation equipment shown in Figs. 1 and 2 was used. It was installed and the change in the inertia constant with respect to the cooling temperature was measured when cooled to 30-20 mK by the quantitative evaluation method of the present invention.
- Figure 5 shows the measurement results. Incidentally, the sound speed V used in obtaining the elastic constant, and detecting a phase difference [Phi eta ultrasonic pulse shown in FIG. 3, the phase difference use ⁇ to was calculated from the following equation.
- (2n-1) 1 is the propagation length of the nth echo and f is the ultrasonic frequency. From the results shown in Fig. 5, PV regions that have been considered to be rich in frozen atomic vacancy regions It can be seen that in the sample (A) in the region, the elasticity constant decreases significantly in proportion to the reciprocal of the temperature in the extremely low temperature range from 20K to 10mK. On the other hand, such a decrease in the elastic constant was not observed in the sample (B) in the Pi region, which was considered to be silicon-rich between the lattices.
- Fig. 15 shows an example of the result of measuring the change in elastic constant with respect to temperature for a sample in which ZnO is formed on an FZ silicon crystal as a vibrator.
- a dilution refrigerator was used as the temperature control means, and the measurement was performed at extremely low temperatures up to 20 mK. From the results shown in Fig. 15, it was confirmed that the F Z silicon crystal was softened at a low temperature as well as the C Z silicon crystal described above.
- Figure 9 shows an example of the change in the inertia constant when a magnetic field of 0 to 16 Tesla is applied.
- the upper figure shows the case where B is not added, and the lower figure shows the case where B is added.
- softening at low temperature in B-doped FZ silicon single crystals occurs when a magnetic field of about 4 Tesla or less is applied, and disappears when a magnetic field larger than that is applied. It was found that low-temperature softening of crystals does not occur over the entire range of magnetic fields. This indicates that the bond between the charge state of the vacancies and the strain is the origin of softening.
- the undoped FZ silicon single crystal In the vacancies of the undoped FZ silicon single crystal, it is in a non-magnetic charge state where four electrons are captured, and in the B-doped FZ silicon single crystal, it is in a magnetically charged state where three electrons are captured. .
- the molecular orbitals of atomic vacancies are split into singlets and triplets, and the ⁇ ahn- Tel ler effect due to the combination of triplet electric quadrupoles and strains reduces C 44 and (ji ⁇ - ⁇
- the additive-free FZ silicon single crystal there is an antiferromagnetic quadrupole interaction between the vacancies, and the T d symmetry around the vacancies is maintained even at a minimum temperature of 20 mK.
- the triplet is degenerate and the electric quadrupole fluctuation appears to exist.
- the type of atomic vacancy can be determined from the presence or absence of magnetic field dependency.
- an external magnetic field is applied to a silicon sample obtained by cutting out a predetermined part from a silicon wafer as needed, while cooling in a temperature range of 25K or less, in the temperature range.
- An ultrasonic pulse is generated by oscillating a thin film vibrator that has physical properties that can follow the expansion of a silicon sample and that has a C-axis aligned in a specified direction, directly on the surface or via a gold thin film.
- the ultrasonic pulse propagated through the silicon sample the change in the sound velocity of the propagated ultrasonic pulse was detected, the elastic constant associated with the decrease in the cooling temperature was calculated from the change in the sound velocity, and the calculated elastic constant
- the amount and type of atomic vacancies present in the silicon wafer can be quantitatively evaluated from the amount of decrease.
- the atomic vacancies present in the silicon wafer were quantitatively evaluated using the quantitative evaluation apparatus for atomic vacancies present in the silicon wafer of the present invention, and will be described below.
- each region existing in the CZ ingot (void region, R-0SF region, Pv region, region) is decorated with Cu.
- the boundary lines of each region are identified as shown in Fig. 6, and the samples (Y-1 and Y- 6 ⁇ Y—10) was cut into 4 mm X mm X 7 mm size, and it was made of ZnO with a C-axis tilted at an angle of 40 ° to the sample surface with a film thickness of 10 m directly on both sides of each sample.
- each sample is set in the quantitative evaluation apparatus shown in FIGS.
- the samples Y-6 to Y8 in the PV region which has been considered to have abundant frozen vacancies, are 10K to 20mK. While the elastic constant decreased significantly in proportion to the reciprocal of the temperature in the extremely low temperature region up to, the samples in other regions including the Pi region showed no change in the elastic constant in the extremely low temperature region. It wasn't.
- the lower figure of Fig. 12 shows an example of a plot of the relationship between the inertia constant and temperature in a sample formed on the surface using A1N as a vibrator instead of ZnO.
- the upper figure in Fig. 12 shows data obtained by plotting the relationship between the elastic constant and temperature in the sample of Y-8 used in Fig. 7 with ZnO as the vibrator formed on the surface. .
- Fig. 8 shows the results of calculating the vacancies for Samples Y-1 and Y_6 to Y-10.
- the atomic vacancy concentration on the vertical axis in Fig. 8 is shown as a relative value when Sample ⁇ -7 is 1.0, and the vacancy concentration of Sample ⁇ -7 is 2. 46 X 10 It was 1 cm 3 .
- the elastic constant decreases according to-T C ) / (T- ⁇ ).
- the difference ⁇ ⁇ - ⁇ between the characteristic temperature Tc and ⁇ obtained in the experiment is proportional to the atomic vacancy concentration N.
- Relational expression ⁇ ⁇ ⁇ C using ⁇ obtained in the experiment. / [Delta] 2 by can determine the absolute value of the atomic vacancy concentration ⁇ experimentally.
- ⁇ is the magnitude of energy change (deformation energy) of the electronic state of the vacancies with respect to externally applied strain.
- an optimized thin film vibrator is formed on the surface of a silicon sample, so that the Tyoklalsky method (CZ method) or the flow zone method (FZ method) used in the semiconductor industry is used. It is possible to directly and quantitatively evaluate the type and concentration of isolated vacancies in the wafer of silicon crystals produced in step 1 without performing acceleration treatment such as increasing the concentration.
- CZ method Tyoklalsky method
- FZ method flow zone method
- the semiconductor industry uses perfect crystals that do not have secondary defects such as voids.
- the defect rate of silicon devices was large, but by using the quantitative evaluation device for atomic vacancies of the present invention, it became possible to quantitatively evaluate the type and concentration of atomic vacancies. It can be said that the impact on the semiconductor industry is extremely large.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US12/281,623 US8037761B2 (en) | 2006-03-03 | 2007-03-02 | Quantitative evaluation device and method of atomic vacancy existing in silicon wafer |
EP07738100.2A EP1992942B1 (en) | 2006-03-03 | 2007-03-02 | Quantitative evaluation device and method of atom vacancy existing in silicon wafer |
KR1020087021628A KR101048637B1 (ko) | 2006-03-03 | 2007-03-02 | 실리콘 웨이퍼 내에 존재하는 원자 공공의 정량 평가 장치 및 방법 |
CN200780015284XA CN101432622B (zh) | 2006-03-03 | 2007-03-02 | 存在于硅晶片中的原子空位的定量评价装置和方法 |
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JP2006058560 | 2006-03-03 | ||
JP2006-058560 | 2006-03-03 |
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US (1) | US8037761B2 (ja) |
EP (1) | EP1992942B1 (ja) |
KR (2) | KR101048637B1 (ja) |
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JP2009033102A (ja) * | 2007-07-03 | 2009-02-12 | Niigata Univ | シリコンウェーハ中に存在する原子空孔の定量評価装置、その方法、シリコンウェーハの製造方法、及び薄膜振動子 |
WO2011027670A1 (ja) * | 2009-09-07 | 2011-03-10 | 国立大学法人 新潟大学 | シリコンウェーハ中に存在する原子空孔濃度の定量評価方法、シリコンウェーハの製造方法、および当該製造方法により製造したシリコンウェーハ |
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CN109656286B (zh) * | 2018-12-10 | 2021-07-30 | 湖南航天天麓新材料检测有限责任公司 | 大分子结晶空间材料实验装置及方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009033102A (ja) * | 2007-07-03 | 2009-02-12 | Niigata Univ | シリコンウェーハ中に存在する原子空孔の定量評価装置、その方法、シリコンウェーハの製造方法、及び薄膜振動子 |
WO2011027670A1 (ja) * | 2009-09-07 | 2011-03-10 | 国立大学法人 新潟大学 | シリコンウェーハ中に存在する原子空孔濃度の定量評価方法、シリコンウェーハの製造方法、および当該製造方法により製造したシリコンウェーハ |
US8578777B2 (en) | 2009-09-07 | 2013-11-12 | Niigata Univerasity | Method for quantitatively evaluating concentration of atomic vacancies existing in silicon wafer, method for manufacturing silicon wafer, and silicon wafer manufactured by the method for manufacturing silicon wafer |
JP5425914B2 (ja) * | 2009-09-07 | 2014-02-26 | 国立大学法人 新潟大学 | シリコンウェーハ中に存在する原子空孔濃度の定量評価方法及びシリコンウェーハの製造方法 |
Also Published As
Publication number | Publication date |
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CN101432622B (zh) | 2013-05-29 |
EP1992942A4 (en) | 2016-11-02 |
EP1992942A1 (en) | 2008-11-19 |
KR20110042391A (ko) | 2011-04-26 |
US8037761B2 (en) | 2011-10-18 |
CN101432622A (zh) | 2009-05-13 |
EP1992942B1 (en) | 2017-12-13 |
KR101048637B1 (ko) | 2011-07-12 |
US20090064786A1 (en) | 2009-03-12 |
KR20080109746A (ko) | 2008-12-17 |
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