KR100977194B1 - 이차이온질량분석기를 이용한 불순물 농도 분석방법 - Google Patents
이차이온질량분석기를 이용한 불순물 농도 분석방법 Download PDFInfo
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- KR100977194B1 KR100977194B1 KR1020080065500A KR20080065500A KR100977194B1 KR 100977194 B1 KR100977194 B1 KR 100977194B1 KR 1020080065500 A KR1020080065500 A KR 1020080065500A KR 20080065500 A KR20080065500 A KR 20080065500A KR 100977194 B1 KR100977194 B1 KR 100977194B1
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- South Korea
- Prior art keywords
- sims
- silicon
- concentration
- impurities
- measurement
- Prior art date
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- 239000012535 impurity Substances 0.000 title claims abstract description 57
- 238000004458 analytical method Methods 0.000 title claims abstract description 24
- 238000001004 secondary ion mass spectrometry Methods 0.000 title claims description 64
- 238000000034 method Methods 0.000 title claims description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 60
- 239000010703 silicon Substances 0.000 claims abstract description 60
- 238000005259 measurement Methods 0.000 claims abstract description 41
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 claims abstract description 37
- 239000013078 crystal Substances 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 238000007689 inspection Methods 0.000 claims description 4
- 239000002019 doping agent Substances 0.000 abstract description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011156 evaluation Methods 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
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2255—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident ion beams, e.g. proton beams
- G01N23/2258—Measuring secondary ion emission, e.g. secondary ion mass spectrometry [SIMS]
-
- 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
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/004—Combinations of spectrometers, tandem spectrometers, e.g. MS/MS, MSn
-
- 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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
Description
산소의 농도 | 탄소의 농도 | SIMS 내부 압력 | ||
ppma | atom/cm3 | ppma | atom/cm3 | |
24.34 | 1.22×1018 | 2.82 | 1.41×1017 | 6.1×10-10 Torr |
10.75 | 5.38×1017 | 2.26 | 1.13×1017 | 4.8×10-10 Torr |
8.24 | 4.12×1017 | 0.54 | 2.72×1016 | 3.8×10-10 Torr |
Claims (3)
- 비저항이 0.1 Ω·cm 이상이고, 단결정이며, 불순물 농도가 서로 다른 세 종류 이상의 실리콘 표준 시료를 준비하는 단계;푸리에 변환 적외선 분광법(FT-IR)을 이용하여 상기 세 종류 이상의 실리콘 표준 시료 내의 불순물 농도를 각각 측정하여 각각에 대한 FT-IR 측정값을 획득하는 단계;이차이온질량분석기(secondary ion mass spectrometry ; SIMS)를 이용하여 상기 세 종류 이상의 실리콘 표준 시료 내의 불순물을 동일한 측정 압력 하에서 각각 측정하여 각각에 대한 SIMS 측정값을 획득하는 단계;상기 FT-IR 측정값과 상기 SIMS 측정값으로부터 회귀식을 도출하는 단계;상기 측정 압력 하에서 SIMS를 이용하여 검사 대상 실리콘 내의 불순물의 농도를 측정하여 임시 측정값을 획득하는 단계;상기 회귀식을 통해 상기 임시 측정값에 해당하는 FT-IR 값을 도출하여, 상기 검사 대상 실리콘 내의 불순물 농도를 결정하는 단계;를 포함하는 것을 특징으로 하는 불순물 농도 분석방법.
- 제1항에 있어서,상기 불순물은 산소 또는 탄소인 것을 특징으로 하는 불순물 농도 분석방법.
- 제1항에 있어서,상기 측정 압력은 7×10-10 Torr 보다 작은 것을 특징으로 하는 불순물 농도 분석방법.
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KR1020080065500A KR100977194B1 (ko) | 2008-07-07 | 2008-07-07 | 이차이온질량분석기를 이용한 불순물 농도 분석방법 |
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KR1020080065500A KR100977194B1 (ko) | 2008-07-07 | 2008-07-07 | 이차이온질량분석기를 이용한 불순물 농도 분석방법 |
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KR20100005461A KR20100005461A (ko) | 2010-01-15 |
KR100977194B1 true KR100977194B1 (ko) | 2010-08-20 |
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JP6504133B2 (ja) * | 2016-08-25 | 2019-04-24 | 信越半導体株式会社 | 抵抗率標準サンプルの製造方法及びエピタキシャルウェーハの抵抗率測定方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05281138A (ja) * | 1992-04-01 | 1993-10-29 | Nireco Corp | 試料の物理的化学的性質推定方法 |
JPH06300684A (ja) * | 1993-04-15 | 1994-10-28 | Horiba Ltd | 分光分析における定量方法 |
KR20070027631A (ko) * | 2004-06-03 | 2007-03-09 | 고마츠 일렉트로닉 메탈스 코포레이션 리미티드 | 불순물 원소의 농도 측정 방법 |
JP2007280655A (ja) | 2006-04-04 | 2007-10-25 | Shimadzu Corp | 質量分析装置 |
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- 2008-07-07 KR KR1020080065500A patent/KR100977194B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05281138A (ja) * | 1992-04-01 | 1993-10-29 | Nireco Corp | 試料の物理的化学的性質推定方法 |
JPH06300684A (ja) * | 1993-04-15 | 1994-10-28 | Horiba Ltd | 分光分析における定量方法 |
KR20070027631A (ko) * | 2004-06-03 | 2007-03-09 | 고마츠 일렉트로닉 메탈스 코포레이션 리미티드 | 불순물 원소의 농도 측정 방법 |
JP2007280655A (ja) | 2006-04-04 | 2007-10-25 | Shimadzu Corp | 質量分析装置 |
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